# PrintWriter

public class **PrintWriter** extends [Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html)  
Prints formatted representations of objects to a text-output stream. This
class implements all of the print methods found in `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintStream.html`. It does not contain methods for writing raw bytes, for which
a program should use unencoded byte streams.

Unlike the `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintStream.html` class, if automatic flushing is enabled
it will be done only when one of the println, printf, or
format methods is invoked, rather than whenever a newline character
happens to be output. These methods use the platform's own notion of line
separator rather than the newline character.

Methods in this class never throw I/O exceptions, although some of its
constructors may. The client may inquire as to whether any errors have
occurred by invoking `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#checkError()`.

### Field Summary

|---|---|---|
| protected [Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) | [out](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#out) | The underlying character-output stream of this `PrintWriter`. |

### Inherited Field Summary

From class [java.io.Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html)

|---|---|---|
| protected [Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) | [lock](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#lock) | The object used to synchronize operations on this stream. |

### Public Constructor Summary

|---|---|
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.io.Writer))([Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) out) Creates a new PrintWriter, without automatic line flushing. |
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.io.Writer,%20boolean))([Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) out, boolean autoFlush) Creates a new PrintWriter. |
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.io.OutputStream))([OutputStream](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStream.html) out) Creates a new PrintWriter, without automatic line flushing, from an existing OutputStream. |
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.io.OutputStream,%20boolean))([OutputStream](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStream.html) out, boolean autoFlush) Creates a new PrintWriter from an existing OutputStream. |
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.lang.String))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) fileName) Creates a new PrintWriter, without automatic line flushing, with the specified file name. |
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.lang.String,%20java.lang.String))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) fileName, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) csn) Creates a new PrintWriter, without automatic line flushing, with the specified file name and charset. |
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.io.File))([File](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/File.html) file) Creates a new PrintWriter, without automatic line flushing, with the specified file. |
|   | [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#PrintWriter(java.io.File,%20java.lang.String))([File](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/File.html) file, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) csn) Creates a new PrintWriter, without automatic line flushing, with the specified file and charset. |

### Public Method Summary

|---|---|
| [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#append(char))(char c) Appends the specified character to this writer. |
| [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#append(java.lang.CharSequence,%20int,%20int))([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq, int start, int end) Appends a subsequence of the specified character sequence to this writer. |
| [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#append(java.lang.CharSequence))([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq) Appends the specified character sequence to this writer. |
| boolean | [checkError](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#checkError())() Flushes the stream if it's not closed and checks its error state. |
| void | [close](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#close())() Closes the stream and releases any system resources associated with it. |
| void | [flush](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#flush())() Flushes the stream. |
| [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [format](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#format(java.util.Locale,%20java.lang.String,%20java.lang.Object...))([Locale](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Locale.html) l, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args) Writes a formatted string to this writer using the specified format string and arguments. |
| [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [format](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#format(java.lang.String,%20java.lang.Object...))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args) Writes a formatted string to this writer using the specified format string and arguments. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(int))(int i) Prints an integer. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(double))(double d) Prints a double-precision floating-point number. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(boolean))(boolean b) Prints a boolean value. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(char))(char c) Prints a character. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(long))(long l) Prints a long integer. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(float))(float f) Prints a floating-point number. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(java.lang.String))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) s) Prints a string. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(java.lang.Object))([Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) obj) Prints an object. |
| void | [print](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(char[]))(char\[\] s) Prints an array of characters. |
| [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [printf](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#printf(java.lang.String,%20java.lang.Object...))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args) A convenience method to write a formatted string to this writer using the specified format string and arguments. |
| [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html) | [printf](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#printf(java.util.Locale,%20java.lang.String,%20java.lang.Object...))([Locale](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Locale.html) l, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args) A convenience method to write a formatted string to this writer using the specified format string and arguments. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(java.lang.Object))([Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) x) Prints an Object and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(char))(char x) Prints a character and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(boolean))(boolean x) Prints a boolean value and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(long))(long x) Prints a long integer and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println())() Terminates the current line by writing the line separator string. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(int))(int x) Prints an integer and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(java.lang.String))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) x) Prints a String and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(char[]))(char\[\] x) Prints an array of characters and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(float))(float x) Prints a floating-point number and then terminates the line. |
| void | [println](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println(double))(double x) Prints a double-precision floating-point number and then terminates the line. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int))(int c) Writes a single character. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(char[],%20int,%20int))(char\[\] buf, int off, int len) Writes A Portion of an array of characters. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(java.lang.String))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) s) Writes a string. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(java.lang.String,%20int,%20int))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) s, int off, int len) Writes a portion of a string. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(char[]))(char\[\] buf) Writes an array of characters. |

### Protected Method Summary

|---|---|
| void | [clearError](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#clearError())() Clears the error state of this stream. |
| void | [setError](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#setError())() Indicates that an error has occurred. |

### Inherited Method Summary

From class [java.io.Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html)

|---|---|
| [Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#append(char))(char c) Appends the specified character to this writer. |
| [Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#append(java.lang.CharSequence,%20int,%20int))([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq, int start, int end) Appends a subsequence of the specified character sequence to this writer. |
| [Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#append(java.lang.CharSequence))([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq) Appends the specified character sequence to this writer. |
| abstract void | [close](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#close())() Closes the stream, flushing it first. |
| abstract void | [flush](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#flush())() Flushes the stream. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#write(java.lang.String))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) str) Writes a string. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#write(int))(int c) Writes a single character. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#write(java.lang.String,%20int,%20int))([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) str, int off, int len) Writes a portion of a string. |
| abstract void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#write(char[],%20int,%20int))(char\[\] cbuf, int off, int len) Writes a portion of an array of characters. |
| void | [write](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html#write(char[]))(char\[\] cbuf) Writes an array of characters. |

From class [java.lang.Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html)

|---|---|
| [Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) | [clone](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#clone())() Creates and returns a copy of this `Object`. |
| boolean | [equals](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#equals(java.lang.Object))([Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) obj) Compares this instance with the specified object and indicates if they are equal. |
| void | [finalize](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#finalize())() Invoked when the garbage collector has detected that this instance is no longer reachable. |
| final [Class](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Class.html)\<?\> | [getClass](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#getClass())() Returns the unique instance of `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Class.html` that represents this object's class. |
| int | [hashCode](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#hashCode())() Returns an integer hash code for this object. |
| final void | [notify](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#notify())() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up. |
| final void | [notifyAll](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#notifyAll())() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up. |
| [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) | [toString](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#toString())() Returns a string containing a concise, human-readable description of this object. |
| final void | [wait](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#wait(long,%20int))(long timeout, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires. |
| final void | [wait](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#wait(long))(long timeout) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires. |
| final void | [wait](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#wait())() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object. |

From interface [java.lang.Appendable](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Appendable.html)

|---|---|
| abstract [Appendable](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Appendable.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Appendable.html#append(char))(char c) Appends the specified character to this Appendable. |
| abstract [Appendable](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Appendable.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Appendable.html#append(java.lang.CharSequence,%20int,%20int))([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq, int start, int end) Appends a subsequence of the specified character sequence to this Appendable. |
| abstract [Appendable](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Appendable.html) | [append](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Appendable.html#append(java.lang.CharSequence))([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq) Appends the specified character sequence to this Appendable. |

From interface [java.io.Closeable](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Closeable.html)

|---|---|
| abstract void | [close](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Closeable.html#close())() Closes this stream and releases any system resources associated with it. |

From interface [java.io.Flushable](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Flushable.html)

|---|---|
| abstract void | [flush](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Flushable.html#flush())() Flushes this stream by writing any buffered output to the underlying stream. |

From interface [java.lang.AutoCloseable](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/AutoCloseable.html)

|---|---|
| abstract void | [close](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/AutoCloseable.html#close())() Closes this resource, relinquishing any underlying resources. |

## Fields

#### protected [Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html)
**out**

The underlying character-output stream of this
`PrintWriter`.

## Public Constructors

#### public
**PrintWriter**
([Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) out)

Creates a new PrintWriter, without automatic line flushing.

##### Parameters

| out | A character-output stream |
|---|---|

#### public
**PrintWriter**
([Writer](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/Writer.html) out, boolean autoFlush)

Creates a new PrintWriter.

##### Parameters

| out | A character-output stream |
| autoFlush | A boolean; if true, the println, printf, or format methods will flush the output buffer |
|---|---|

#### public
**PrintWriter**
([OutputStream](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStream.html) out)

Creates a new PrintWriter, without automatic line flushing, from an
existing OutputStream. This convenience constructor creates the
necessary intermediate OutputStreamWriter, which will convert characters
into bytes using the default character encoding.

##### Parameters

| out | An output stream |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStreamWriter.html#OutputStreamWriter(java.io.OutputStream)`

#### public
**PrintWriter**
([OutputStream](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStream.html) out, boolean autoFlush)

Creates a new PrintWriter from an existing OutputStream. This
convenience constructor creates the necessary intermediate
OutputStreamWriter, which will convert characters into bytes using the
default character encoding.

##### Parameters

| out | An output stream |
| autoFlush | A boolean; if true, the println, printf, or format methods will flush the output buffer |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStreamWriter.html#OutputStreamWriter(java.io.OutputStream)`

#### public
**PrintWriter**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) fileName)

Creates a new PrintWriter, without automatic line flushing, with the
specified file name. This convenience constructor creates the necessary
intermediate `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStreamWriter.html`,
which will encode characters using the {@linkplain java.nio.charset.Charset#defaultCharset() default charset} for this
instance of the Java virtual machine.

##### Parameters

| fileName | The name of the file to use as the destination of this writer. If the file exists then it will be truncated to zero size; otherwise, a new file will be created. The output will be written to the file and is buffered. |
|---|---|

##### Throws

| [FileNotFoundException](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/FileNotFoundException.html) | If the given string does not denote an existing, writable regular file and a new regular file of that name cannot be created, or if some other error occurs while opening or creating the file |
| [SecurityException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityException.html) | If a security manager is present and `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityManager.html#checkWrite(java.io.FileDescriptor)` denies write access to the file |
|---|---|

#### public
**PrintWriter**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) fileName, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) csn)

Creates a new PrintWriter, without automatic line flushing, with the
specified file name and charset. This convenience constructor creates
the necessary intermediate `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStreamWriter.html`, which will encode characters using the provided
charset.

##### Parameters

| fileName | The name of the file to use as the destination of this writer. If the file exists then it will be truncated to zero size; otherwise, a new file will be created. The output will be written to the file and is buffered. |
| csn | The name of a supported {@linkplain java.nio.charset.Charset charset} |
|---|---|

##### Throws

| [FileNotFoundException](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/FileNotFoundException.html) | If the given string does not denote an existing, writable regular file and a new regular file of that name cannot be created, or if some other error occurs while opening or creating the file |
| [SecurityException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityException.html) | If a security manager is present and `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityManager.html#checkWrite(java.io.FileDescriptor)` denies write access to the file |
| [UnsupportedEncodingException](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/UnsupportedEncodingException.html) | If the named charset is not supported |
|---|---|

#### public
**PrintWriter**
([File](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/File.html) file)

Creates a new PrintWriter, without automatic line flushing, with the
specified file. This convenience constructor creates the necessary
intermediate `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStreamWriter.html`,
which will encode characters using the {@linkplain java.nio.charset.Charset#defaultCharset() default charset} for this
instance of the Java virtual machine.

##### Parameters

| file | The file to use as the destination of this writer. If the file exists then it will be truncated to zero size; otherwise, a new file will be created. The output will be written to the file and is buffered. |
|---|---|

##### Throws

| [FileNotFoundException](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/FileNotFoundException.html) | If the given file object does not denote an existing, writable regular file and a new regular file of that name cannot be created, or if some other error occurs while opening or creating the file |
| [SecurityException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityException.html) | If a security manager is present and `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityManager.html#checkWrite(java.io.FileDescriptor)` denies write access to the file |
|---|---|

#### public
**PrintWriter**
([File](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/File.html) file, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) csn)

Creates a new PrintWriter, without automatic line flushing, with the
specified file and charset. This convenience constructor creates the
necessary intermediate `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/OutputStreamWriter.html`, which will encode characters using the provided
charset.

##### Parameters

| file | The file to use as the destination of this writer. If the file exists then it will be truncated to zero size; otherwise, a new file will be created. The output will be written to the file and is buffered. |
| csn | The name of a supported {@linkplain java.nio.charset.Charset charset} |
|---|---|

##### Throws

| [FileNotFoundException](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/FileNotFoundException.html) | If the given file object does not denote an existing, writable regular file and a new regular file of that name cannot be created, or if some other error occurs while opening or creating the file |
| [SecurityException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityException.html) | If a security manager is present and `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/SecurityManager.html#checkWrite(java.io.FileDescriptor)` denies write access to the file |
| [UnsupportedEncodingException](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/UnsupportedEncodingException.html) | If the named charset is not supported |
|---|---|

## Public Methods

#### public [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**append**
(char c)

Appends the specified character to this writer.

An invocation of this method of the form out.append(c)
behaves in exactly the same way as the invocation

```
     out.write(c) 
```

<br />

##### Parameters

| c | The 16-bit character to append |
|---|---|

##### Returns

- This writer

#### public [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**append**
([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq, int start, int end)

Appends a subsequence of the specified character sequence to this writer.

An invocation of this method of the form out.append(csq, start, end) when csq is not null, behaves in
exactly the same way as the invocation

```
     out.write(csq.subSequence(start, end).toString()) 
```

<br />

##### Parameters

| csq | The character sequence from which a subsequence will be appended. If csq is null, then characters will be appended as if csq contained the four characters "null". |
| start | The index of the first character in the subsequence |
| end | The index of the character following the last character in the subsequence |
|---|---|

##### Returns

- This writer

##### Throws

| [IndexOutOfBoundsException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/IndexOutOfBoundsException.html) | If start or end are negative, start is greater than end, or end is greater than csq.length() |
|---|---|

#### public [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**append**
([CharSequence](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/CharSequence.html) csq)

Appends the specified character sequence to this writer.

An invocation of this method of the form out.append(csq)
behaves in exactly the same way as the invocation

```
     out.write(csq.toString()) 
```

Depending on the specification of toString for the
character sequence csq, the entire sequence may not be
appended. For instance, invoking the toString method of a
character buffer will return a subsequence whose content depends upon
the buffer's position and limit.

##### Parameters

| csq | The character sequence to append. If csq is null, then the four characters "null" are appended to this writer. |
|---|---|

##### Returns

- This writer

#### public boolean
**checkError**
()

Flushes the stream if it's not closed and checks its error state.

##### Returns

- `true` if the print stream has encountered an error, either on the underlying output stream or during a format conversion.

#### public void
**close**
()

Closes the stream and releases any system resources associated
with it. Closing a previously closed stream has no effect.

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#checkError()`

#### public void
**flush**
()

Flushes the stream.

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#checkError()`

#### public [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**format**
([Locale](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Locale.html) l, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args)

Writes a formatted string to this writer using the specified format
string and arguments. If automatic flushing is enabled, calls to this
method will flush the output buffer.

##### Parameters

| l | The {@linkplain java.util.Locale locale} to apply during formatting. If l is null then no localization is applied. |
| format | A format string as described in [Format string syntax](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
| args | Arguments referenced by the format specifiers in the format string. If there are more arguments than format specifiers, the extra arguments are ignored. The number of arguments is variable and may be zero. The maximum number of arguments is limited by the maximum dimension of a Java array as defined by The Java™ Virtual Machine Specification. The behaviour on a null argument depends on the [conversion](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
|---|---|

##### Returns

- This writer

##### Throws

| [IllegalFormatException](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/IllegalFormatException.html) | If a format string contains an illegal syntax, a format specifier that is incompatible with the given arguments, insufficient arguments given the format string, or other illegal conditions. For specification of all possible formatting errors, see the [Details](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#detail) section of the formatter class specification. |
| [NullPointerException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/NullPointerException.html) | If the format is null |
|---|---|

#### public [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**format**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args)

Writes a formatted string to this writer using the specified format
string and arguments. If automatic flushing is enabled, calls to this
method will flush the output buffer.

The locale always used is the one returned by `https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Locale.html#getDefault()`, regardless of any
previous invocations of other formatting methods on this object.

##### Parameters

| format | A format string as described in [Format string syntax](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
| args | Arguments referenced by the format specifiers in the format string. If there are more arguments than format specifiers, the extra arguments are ignored. The number of arguments is variable and may be zero. The maximum number of arguments is limited by the maximum dimension of a Java array as defined by The Java™ Virtual Machine Specification. The behaviour on a null argument depends on the [conversion](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
|---|---|

##### Returns

- This writer

##### Throws

| [IllegalFormatException](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/IllegalFormatException.html) | If a format string contains an illegal syntax, a format specifier that is incompatible with the given arguments, insufficient arguments given the format string, or other illegal conditions. For specification of all possible formatting errors, see the [Details](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#detail) section of the Formatter class specification. |
| [NullPointerException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/NullPointerException.html) | If the format is null |
|---|---|

#### public void
**print**
(int i)

Prints an integer. The string produced by `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html#valueOf(int)` `` is translated into bytes according
to the platform's default character encoding, and these bytes are
written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` ``
method.

##### Parameters

| i | The `int` to be printed |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Integer.html#toString(int)`

#### public void
**print**
(double d)

Prints a double-precision floating-point number. The string produced by
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html#valueOf(double)` `` is translated into
bytes according to the platform's default character encoding, and these
bytes are written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` `` method.

##### Parameters

| d | The `double` to be printed |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Double.html#toString(double)`

#### public void
**print**
(boolean b)

Prints a boolean value. The string produced by `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html#valueOf(boolean)` `` is translated into bytes
according to the platform's default character encoding, and these bytes
are written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` `` method.

##### Parameters

| b | The `boolean` to be printed |
|---|---|

#### public void
**print**
(char c)

Prints a character. The character is translated into one or more bytes
according to the platform's default character encoding, and these bytes
are written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` `` method.

##### Parameters

| c | The `char` to be printed |
|---|---|

#### public void
**print**
(long l)

Prints a long integer. The string produced by `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html#valueOf(long)` `` is translated into bytes
according to the platform's default character encoding, and these bytes
are written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` ``
method.

##### Parameters

| l | The `long` to be printed |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Long.html#toString(long)`

#### public void
**print**
(float f)

Prints a floating-point number. The string produced by `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html#valueOf(float)` `` is translated into bytes
according to the platform's default character encoding, and these bytes
are written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` ``
method.

##### Parameters

| f | The `float` to be printed |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Float.html#toString(float)`

#### public void
**print**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) s)

Prints a string. If the argument is `null` then the string
`"null"` is printed. Otherwise, the string's characters are
converted into bytes according to the platform's default character
encoding, and these bytes are written in exactly the manner of the
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` `` method.

##### Parameters

| s | The `String` to be printed |
|---|---|

#### public void
**print**
([Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) obj)

Prints an object. The string produced by the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html#valueOf(java.lang.Object)` `` method is translated into bytes
according to the platform's default character encoding, and these bytes
are written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` ``
method.

##### Parameters

| obj | The `Object` to be printed |
|---|---|

##### See Also

- `https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html#toString()`

#### public void
**print**
(char\[\] s)

Prints an array of characters. The characters are converted into bytes
according to the platform's default character encoding, and these bytes
are written in exactly the manner of the `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#write(int)` ``
method.

##### Parameters

| s | The array of chars to be printed |
|---|---|

##### Throws

| [NullPointerException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/NullPointerException.html) | If `s` is `null` |
|---|---|

#### public [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**printf**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args)

A convenience method to write a formatted string to this writer using
the specified format string and arguments. If automatic flushing is
enabled, calls to this method will flush the output buffer.

An invocation of this method of the form out.printf(format, args) behaves in exactly the same way as the invocation

```
     out.format(format, args) 
```

<br />

##### Parameters

| format | A format string as described in [Format string syntax](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
| args | Arguments referenced by the format specifiers in the format string. If there are more arguments than format specifiers, the extra arguments are ignored. The number of arguments is variable and may be zero. The maximum number of arguments is limited by the maximum dimension of a Java array as defined by The Java™ Virtual Machine Specification. The behaviour on a null argument depends on the [conversion](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
|---|---|

##### Returns

- This writer

##### Throws

| [IllegalFormatException](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/IllegalFormatException.html) | If a format string contains an illegal syntax, a format specifier that is incompatible with the given arguments, insufficient arguments given the format string, or other illegal conditions. For specification of all possible formatting errors, see the [Details](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#detail) section of the formatter class specification. |
| [NullPointerException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/NullPointerException.html) | If the format is null |
|---|---|

#### public [PrintWriter](https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html)
**printf**
([Locale](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Locale.html) l, [String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) format, [Object...](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) args)

A convenience method to write a formatted string to this writer using
the specified format string and arguments. If automatic flushing is
enabled, calls to this method will flush the output buffer.

An invocation of this method of the form out.printf(l, format, args) behaves in exactly the same way as the invocation

```
     out.format(l, format, args) 
```

<br />

##### Parameters

| l | The {@linkplain java.util.Locale locale} to apply during formatting. If l is null then no localization is applied. |
| format | A format string as described in [Format string syntax](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
| args | Arguments referenced by the format specifiers in the format string. If there are more arguments than format specifiers, the extra arguments are ignored. The number of arguments is variable and may be zero. The maximum number of arguments is limited by the maximum dimension of a Java array as defined by The Java™ Virtual Machine Specification. The behaviour on a null argument depends on the [conversion](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#syntax). |
|---|---|

##### Returns

- This writer

##### Throws

| [IllegalFormatException](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/IllegalFormatException.html) | If a format string contains an illegal syntax, a format specifier that is incompatible with the given arguments, insufficient arguments given the format string, or other illegal conditions. For specification of all possible formatting errors, see the [Details](https://developers.google.com/j2objc/javadoc/jre/reference/java/util/Formatter.html#detail) section of the formatter class specification. |
| [NullPointerException](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/NullPointerException.html) | If the format is null |
|---|---|

#### public void
**println**
([Object](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/Object.html) x)

Prints an Object and then terminates the line. This method calls
at first String.valueOf(x) to get the printed object's string value,
then behaves as
though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(java.lang.String)` `` and then
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | The `Object` to be printed. |
|---|---|

#### public void
**println**
(char x)

Prints a character and then terminates the line. This method behaves as
though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(char)` `` and then `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the `char` value to be printed |
|---|---|

#### public void
**println**
(boolean x)

Prints a boolean value and then terminates the line. This method behaves
as though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(boolean)` `` and then
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the `boolean` value to be printed |
|---|---|

#### public void
**println**
(long x)

Prints a long integer and then terminates the line. This method behaves
as though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(long)` `` and then
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the `long` value to be printed |
|---|---|

#### public void
**println**
()

Terminates the current line by writing the line separator string. The
line separator string is defined by the system property
`line.separator`, and is not necessarily a single newline
character (`'\n'`).

#### public void
**println**
(int x)

Prints an integer and then terminates the line. This method behaves as
though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(int)` `` and then `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the `int` value to be printed |
|---|---|

#### public void
**println**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) x)

Prints a String and then terminates the line. This method behaves as
though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(java.lang.String)` `` and then
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the `String` value to be printed |
|---|---|

#### public void
**println**
(char\[\] x)

Prints an array of characters and then terminates the line. This method
behaves as though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(char[])` `` and then
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the array of `char` values to be printed |
|---|---|

#### public void
**println**
(float x)

Prints a floating-point number and then terminates the line. This method
behaves as though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(float)` `` and then
`` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the `float` value to be printed |
|---|---|

#### public void
**println**
(double x)

Prints a double-precision floating-point number and then terminates the
line. This method behaves as though it invokes `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#print(double)` `` and then `` `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#println()` ``.

##### Parameters

| x | the `double` value to be printed |
|---|---|

#### public void
**write**
(int c)

Writes a single character.

##### Parameters

| c | int specifying a character to be written. |
|---|---|

#### public void
**write**
(char\[\] buf, int off, int len)

Writes A Portion of an array of characters.

##### Parameters

| buf | Array of characters |
| off | Offset from which to start writing characters |
| len | Number of characters to write |
|---|---|

#### public void
**write**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) s)

Writes a string. This method cannot be inherited from the Writer class
because it must suppress I/O exceptions.

##### Parameters

| s | String to be written |
|---|---|

#### public void
**write**
([String](https://developers.google.com/j2objc/javadoc/jre/reference/java/lang/String.html) s, int off, int len)

Writes a portion of a string.

##### Parameters

| s | A String |
| off | Offset from which to start writing characters |
| len | Number of characters to write |
|---|---|

#### public void
**write**
(char\[\] buf)

Writes an array of characters. This method cannot be inherited from the
Writer class because it must suppress I/O exceptions.

##### Parameters

| buf | Array of characters to be written |
|---|---|

## Protected Methods

#### protected void
**clearError**
()

Clears the error state of this stream.

This method will cause subsequent invocations of `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#checkError()` to return false until another write
operation fails and invokes `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#setError()`.

#### protected void
**setError**
()

Indicates that an error has occurred.

This method will cause subsequent invocations of `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#checkError()` to return true until `https://developers.google.com/j2objc/javadoc/jre/reference/java/io/PrintWriter.html#clearError()` is invoked.