Added in API level 1

Summary: Constants | Ctors | Methods | Inherited Methods

Modifier

public class Modifier
extends Object

java.lang.Object
↳	java.lang.reflect.Modifier

---

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()

Summary

Constants
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 constructors
Modifier()

Public methods
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 methods

From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Constants

ABSTRACT

Added in API level 1

public static final int ABSTRACT

The int value representing the abstract modifier.

Constant Value: 1024 (0x00000400)

FINAL

Added in API level 1

public static final int FINAL

The int value representing the final modifier.

Constant Value: 16 (0x00000010)

INTERFACE

Added in API level 1

public static final int INTERFACE

The int value representing the interface modifier.

Constant Value: 512 (0x00000200)

NATIVE

Added in API level 1

public static final int NATIVE

The int value representing the native modifier.

Constant Value: 256 (0x00000100)

PRIVATE

Added in API level 1

public static final int PRIVATE

The int value representing the private modifier.

Constant Value: 2 (0x00000002)

PROTECTED

Added in API level 1

public static final int PROTECTED

The int value representing the protected modifier.

Constant Value: 4 (0x00000004)

PUBLIC

Added in API level 1

public static final int PUBLIC

The int value representing the public modifier.

Constant Value: 1 (0x00000001)

STATIC

Added in API level 1

public static final int STATIC

The int value representing the static modifier.

Constant Value: 8 (0x00000008)

STRICT

Added in API level 1

public static final int STRICT

The int value representing the strictfp modifier.

Constant Value: 2048 (0x00000800)

SYNCHRONIZED

Added in API level 1

public static final int SYNCHRONIZED

The int value representing the synchronized modifier.

Constant Value: 32 (0x00000020)

TRANSIENT

Added in API level 1

public static final int TRANSIENT

The int value representing the transient modifier.

Constant Value: 128 (0x00000080)

VOLATILE

Added in API level 1

public static final int VOLATILE

The int value representing the volatile modifier.

Constant Value: 64 (0x00000040)

Public constructors

Modifier

Added in API level 1

public Modifier ()

Public methods

classModifiers

Added in API level 19

public static int classModifiers ()

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

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

constructorModifiers

Added in API level 19

public static int constructorModifiers ()

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

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

fieldModifiers

Added in API level 19

public static int fieldModifiers ()

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

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

interfaceModifiers

Added in API level 19

public static int interfaceModifiers ()

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

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

isAbstract

Added in API level 1

public static boolean isAbstract (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the abstract modifier; false otherwise.

isFinal

Added in API level 1

public static boolean isFinal (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the final modifier; false otherwise.

isInterface

Added in API level 1

public static boolean isInterface (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the interface modifier; false otherwise.

isNative

Added in API level 1

public static boolean isNative (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the native modifier; false otherwise.

isPrivate

Added in API level 1

public static boolean isPrivate (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the private modifier; false otherwise.

isProtected

Added in API level 1

public static boolean isProtected (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the protected modifier; false otherwise.

isPublic

Added in API level 1

public static boolean isPublic (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the public modifier; false otherwise.

isStatic

Added in API level 1

public static boolean isStatic (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the static modifier; false otherwise.

isStrict

Added in API level 1

public static boolean isStrict (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the strictfp modifier; false otherwise.

isSynchronized

Added in API level 1

public static boolean isSynchronized (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the synchronized modifier; false otherwise.

isTransient

Added in API level 1

public static boolean isTransient (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the transient modifier; false otherwise.

isVolatile

Added in API level 1

public static boolean isVolatile (int mod)

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

Parameters
mod	int: a set of modifiers

Returns
boolean	true if mod includes the volatile modifier; false otherwise.

methodModifiers

Added in API level 19

public static int methodModifiers ()

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

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

parameterModifiers

Added in API level 26

public static int parameterModifiers ()

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

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

toString

Added in API level 1

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	int: a set of modifiers

Returns
String	a string representation of the set of modifiers represented by mod