Modifier

public class Modifier extends Object

The Modifier class provides static methods and constants to decode class and member access modifiers. The sets of modifiers are represented as integers with distinct bit positions representing different modifiers. The values for the constants representing the modifiers are taken from the tables in sections 4.1, 4.4, 4.5, and 4.7 of The Java™ Virtual Machine Specification.

See Also

• Class.getModifiers()
• Member.getModifiers()

Constant Summary

int	ABSTRACT	The int value representing the abstract modifier.
int	FINAL	The int value representing the final modifier.
int	INTERFACE	The int value representing the interface modifier.
int	NATIVE	The int value representing the native modifier.
int	PRIVATE	The int value representing the private modifier.
int	PROTECTED	The int value representing the protected modifier.
int	PUBLIC	The int value representing the public modifier.
int	STATIC	The int value representing the static modifier.
int	STRICT	The int value representing the strictfp modifier.
int	SYNCHRONIZED	The int value representing the synchronized modifier.
int	TRANSIENT	The int value representing the transient modifier.
int	VOLATILE	The int value representing the volatile modifier.

Public Constructor Summary

Modifier()

Public Method Summary

static int	classModifiers() Return an int value OR-ing together the source language modifiers that can be applied to a class.
static int	constructorModifiers() Return an int value OR-ing together the source language modifiers that can be applied to a constructor.
static int	fieldModifiers() Return an int value OR-ing together the source language modifiers that can be applied to a field.
static int	interfaceModifiers() Return an int value OR-ing together the source language modifiers that can be applied to an interface.
static boolean	isAbstract(int mod) Return true if the integer argument includes the abstract modifier, false otherwise.
static boolean	isFinal(int mod) Return true if the integer argument includes the final modifier, false otherwise.
static boolean	isInterface(int mod) Return true if the integer argument includes the interface modifier, false otherwise.
static boolean	isNative(int mod) Return true if the integer argument includes the native modifier, false otherwise.
static boolean	isPrivate(int mod) Return true if the integer argument includes the private modifier, false otherwise.
static boolean	isProtected(int mod) Return true if the integer argument includes the protected modifier, false otherwise.
static boolean	isPublic(int mod) Return true if the integer argument includes the public modifier, false otherwise.
static boolean	isStatic(int mod) Return true if the integer argument includes the static modifier, false otherwise.
static boolean	isStrict(int mod) Return true if the integer argument includes the strictfp modifier, false otherwise.
static boolean	isSynchronized(int mod) Return true if the integer argument includes the synchronized modifier, false otherwise.
static boolean	isTransient(int mod) Return true if the integer argument includes the transient modifier, false otherwise.
static boolean	isVolatile(int mod) Return true if the integer argument includes the volatile modifier, false otherwise.
static int	methodModifiers() Return an int value OR-ing together the source language modifiers that can be applied to a method.
static int	parameterModifiers() Return an int value OR-ing together the source language modifiers that can be applied to a parameter.
static String	toString(int mod) Return a string describing the access modifier flags in the specified modifier.

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.

Constants

public static final int ABSTRACT

The int value representing the abstract modifier.

Constant Value: 1024

public static final int FINAL

The int value representing the final modifier.

Constant Value: 16

public static final int INTERFACE

The int value representing the interface modifier.

Constant Value: 512

public static final int NATIVE

The int value representing the native modifier.

Constant Value: 256

public static final int PRIVATE

The int value representing the private modifier.

Constant Value: 2

public static final int PROTECTED

The int value representing the protected modifier.

Constant Value: 4

public static final int PUBLIC

The int value representing the public modifier.

Constant Value: 1

public static final int STATIC

The int value representing the static modifier.

Constant Value: 8

public static final int STRICT

The int value representing the strictfp modifier.

Constant Value: 2048

public static final int SYNCHRONIZED

The int value representing the synchronized modifier.

Constant Value: 32

public static final int TRANSIENT

The int value representing the transient modifier.

Constant Value: 128

public static final int VOLATILE

The int value representing the volatile modifier.

Constant Value: 64

Public Constructors

public Modifier ()

Public Methods

public static int classModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a class.

Returns

• an int value OR-ing together the source language modifiers that can be applied to a class.

public static int constructorModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a constructor.

Returns

• an int value OR-ing together the source language modifiers that can be applied to a constructor.

public static int fieldModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a field.

Returns

• an int value OR-ing together the source language modifiers that can be applied to a field.

public static int interfaceModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to an interface.

Returns

• an int value OR-ing together the source language modifiers that can be applied to an interface.

public static boolean isAbstract (int mod)

Return true if the integer argument includes the abstract modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the abstract modifier; false otherwise.

public static boolean isFinal (int mod)

Return true if the integer argument includes the final modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the final modifier; false otherwise.

public static boolean isInterface (int mod)

Return true if the integer argument includes the interface modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the interface modifier; false otherwise.

public static boolean isNative (int mod)

Return true if the integer argument includes the native modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the native modifier; false otherwise.

public static boolean isPrivate (int mod)

Return true if the integer argument includes the private modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the private modifier; false otherwise.

public static boolean isProtected (int mod)

Return true if the integer argument includes the protected modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the protected modifier; false otherwise.

public static boolean isPublic (int mod)

Return true if the integer argument includes the public modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the public modifier; false otherwise.

public static boolean isStatic (int mod)

Return true if the integer argument includes the static modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the static modifier; false otherwise.

public static boolean isStrict (int mod)

Return true if the integer argument includes the strictfp modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the strictfp modifier; false otherwise.

public static boolean isSynchronized (int mod)

Return true if the integer argument includes the synchronized modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the synchronized modifier; false otherwise.

public static boolean isTransient (int mod)

Return true if the integer argument includes the transient modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the transient modifier; false otherwise.

public static boolean isVolatile (int mod)

Return true if the integer argument includes the volatile modifier, false otherwise.

Parameters

mod	a set of modifiers

Returns

• true if mod includes the volatile modifier; false otherwise.

public static int methodModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a method.

Returns

• an int value OR-ing together the source language modifiers that can be applied to a method.

public static int parameterModifiers ()

Return an int value OR-ing together the source language modifiers that can be applied to a parameter.

Returns

• an int value OR-ing together the source language modifiers that can be applied to a parameter.

public static String toString (int mod)

Return a string describing the access modifier flags in the specified modifier. For example:

    public final synchronized strictfp
 

The modifier names are returned in an order consistent with the suggested modifier orderings given in sections 8.1.1, 8.3.1, 8.4.3, 8.8.3, and 9.1.1 of The Java™ Language Specification. The full modifier ordering used by this method is:

public protected private abstract static final transient volatile synchronized native strictfp interface

The interface modifier discussed in this class is not a true modifier in the Java language and it appears after all other modifiers listed by this method. This method may return a string of modifiers that are not valid modifiers of a Java entity; in other words, no checking is done on the possible validity of the combination of modifiers represented by the input. Note that to perform such checking for a known kind of entity, such as a constructor or method, first AND the argument of toString with the appropriate mask from a method like constructorModifiers() or methodModifiers().

Parameters

mod	a set of modifiers

Returns

• a string representation of the set of modifiers represented by mod