Console
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Provides access to the console, if available. The system-wide instance can
be accessed via System.console()
.
Inherited Method Summary
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this Object .
|
boolean
|
equals( Object obj)
Compares this instance with the specified object and indicates if they
are equal.
|
void
|
finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
|
final
Class<?>
|
getClass()
Returns the unique instance of Class that represents this
object's class.
|
int
|
hashCode()
Returns an integer hash code for this object.
|
final
void
|
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()
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
|
toString()
Returns a string containing a concise, human-readable description of this
object.
|
final
void
|
wait(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(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()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
|
From interface
java.io.Flushable
abstract
void
|
flush()
Flushes this stream by writing any buffered output to the underlying
stream.
|
Public Methods
public
void
flush
()
Flushes this stream by writing any buffered output to the underlying
stream.
Writes a formatted string to the console using
the specified format string and arguments.
Parameters
format |
the format string (see Formatter.format(String, Object...) ) |
args |
the list of arguments passed to the formatter. If there are
more arguments than required by format ,
additional arguments are ignored. |
Equivalent to format(format, args)
.
public
String
readLine
()
Reads a line from the console.
Returns
- the line, or null at EOF.
Reads a line from this console, using the specified prompt.
The prompt is given as a format string and optional arguments.
Note that this can be a source of errors: if it is possible that your
prompt contains %
characters, you must use the format string "%s"
and pass the actual prompt as a parameter.
Parameters
format |
the format string (see Formatter.format(String, Object...) ) |
args |
the list of arguments passed to the formatter. If there are
more arguments than required by format ,
additional arguments are ignored. |
Returns
- the line, or null at EOF.
public
char[]
readPassword
()
This method is unimplemented on Android.
This method is unimplemented on Android.
public
Reader
reader
()
Returns the Reader
associated with this console.
Returns the Writer
associated with this console.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-07-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-07-10 UTC."],[[["The `Console` class provides access to the system console for reading input and writing output."],["It offers methods for reading lines, passwords (unimplemented on Android), and formatting output."],["`Console` includes functionalities for flushing buffered output and accessing associated Reader and Writer objects."],["A system-wide `Console` instance can be obtained using `System.console()`."]]],["The `Console` class provides methods for interacting with the system console. Key actions include: flushing buffered output (`flush()`), writing formatted strings (`format()`, `printf()`), reading lines (`readLine()`), and accessing the associated `Reader` and `Writer` (`reader()`, `writer()`). `readPassword()` is present but is unimplemented in Android. `System.console()` allows system-wide console access. It also inherits methods from `java.lang.Object` such as `clone()` and `getClass()`.\n"]]