java.lang.reflect.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.

Since:: 1.1
See Also:: Class.getModifiers(), Member.getModifiers()

Field Summary

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

Constructor Summary

Constructors

Constructor Description

Modifier()
Deprecated, for removal: This API element is subject to removal in a future version.

Method Summary

Modifier and Type	Method	Description
`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.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- PUBLIC
  
  public static final int PUBLIC
  
  The int value representing the public modifier.
  
  See Also:
  
  Constant Field Values
- PRIVATE
  
  public static final int PRIVATE
  
  The int value representing the private modifier.
  
  See Also:
  
  Constant Field Values
- PROTECTED
  
  public static final int PROTECTED
  
  The int value representing the protected modifier.
  
  See Also:
  
  Constant Field Values
- STATIC
  
  public static final int STATIC
  
  The int value representing the static modifier.
  
  See Also:
  
  Constant Field Values
- FINAL
  
  public static final int FINAL
  
  The int value representing the final modifier.
  
  See Also:
  
  Constant Field Values
- SYNCHRONIZED
  
  public static final int SYNCHRONIZED
  
  The int value representing the synchronized modifier.
  
  See Also:
  
  Constant Field Values
- VOLATILE
  
  public static final int VOLATILE
  
  The int value representing the volatile modifier.
  
  See Also:
  
  Constant Field Values
- TRANSIENT
  
  public static final int TRANSIENT
  
  The int value representing the transient modifier.
  
  See Also:
  
  Constant Field Values
- NATIVE
  
  public static final int NATIVE
  
  The int value representing the native modifier.
  
  See Also:
  
  Constant Field Values
- INTERFACE
  
  public static final int INTERFACE
  
  The int value representing the interface modifier.
  
  See Also:
  
  Constant Field Values
- ABSTRACT
  
  public static final int ABSTRACT
  
  The int value representing the abstract modifier.
  
  See Also:
  
  Constant Field Values
- STRICT
  
  public static final int STRICT
  
  The int value representing the strictfp modifier.
  
  See Also:
  
  Constant Field Values
Constructor Details
- Modifier
  
  @Deprecated(forRemoval=true, since="14") public Modifier()
  
  Deprecated, for removal: This API element is subject to removal in a future version.
  
  Do not call.
Method Details
- isPublic
  
  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.
- isPrivate
  
  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.
- isProtected
  
  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.
- isStatic
  
  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.
- isFinal
  
  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.
- isSynchronized
  
  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.
- isVolatile
  
  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.
- isTransient
  
  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.
- isNative
  
  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.
- isInterface
  
  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.
- isAbstract
  
  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.
- isStrict
  
  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.
- toString
  
  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
- classModifiers
  
  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.
  
  See Java Language Specification:
  
  8.1.1 Class Modifiers
  
  Since:
  
  1.7
- interfaceModifiers
  
  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.
  
  See Java Language Specification:
  
  9.1.1 Interface Modifiers
  
  Since:
  
  1.7
- constructorModifiers
  
  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.
  
  See Java Language Specification:
  
  8.8.3 Constructor Modifiers
  
  Since:
  
  1.7
- methodModifiers
  
  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.
  
  See Java Language Specification:
  
  8.4.3 Method Modifiers
  
  Since:
  
  1.7
- fieldModifiers
  
  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.
  
  See Java Language Specification:
  
  8.3.1 Field Modifiers
  
  Since:
  
  1.7
- parameterModifiers
  
  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.
  
  See Java Language Specification:
  
  8.4.1 Formal Parameters
  
  Since:
  
  1.8

Class Modifier

Field Summary

Constructor Summary

Method Summary

Methods declared in class java.lang.Object

Field Details

Constructor Details

Method Details