OpenJDK 27 · java.util.concurrent.atomic.AtomicInteger

Modifier and Type	Field and Description
private static final long	serialVersionUID Hides java.lang.Number.serialVersionUID.
private static final Unsafe	U
private static final long	VALUE
private volatile int	value

Access	Constructor and Description
public	AtomicInteger(int the initial value initialValue) Creates a new AtomicInteger with the given initial value.
public	AtomicInteger() Creates a new AtomicInteger with initial value `0`.

Method Summary

Modifier and Type	Method and Description
public final int	Returns: the updated value accumulateAndGet(int the update value x, IntBinaryOperator a side-effect-free function of two arguments accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function to the current and given values, returning the updated value.
public final int	Returns: the updated value addAndGet(int the value to add delta) Atomically adds the given value to the current value, with memory effects as specified by `VarHandle#getAndAdd`.
public final int	Returns: the witness value, which will be the same as the expected value if successful compareAndExchange(int the expected value expectedValue, int the new value newValue) Atomically sets the value to `newValue` if the current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchange`.
public final int	Returns: the witness value, which will be the same as the expected value if successful compareAndExchangeAcquire(int the expected value expectedValue, int the new value newValue) Atomically sets the value to `newValue` if the current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeAcquire`.
public final int	Returns: the witness value, which will be the same as the expected value if successful compareAndExchangeRelease(int the expected value expectedValue, int the new value newValue) Atomically sets the value to `newValue` if the current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeRelease`.
public final boolean	Returns: `true` if successful. False return indicates that the actual value was not equal to the expected value. compareAndSet(int the expected value expectedValue, int the new value newValue) Atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#compareAndSet`.
public final int	Returns: the updated value decrementAndGet() Atomically decrements the current value, with memory effects as specified by `VarHandle#getAndAdd`.
public double	doubleValue() Implements abstract java.lang.Number.doubleValue. Returns the current value of this `AtomicInteger` as a `double` after a widening primitive conversion, with memory effects as specified by `VarHandle#getVolatile`.
public float	floatValue() Implements abstract java.lang.Number.floatValue. Returns the current value of this `AtomicInteger` as a `float` after a widening primitive conversion, with memory effects as specified by `VarHandle#getVolatile`.
public final int	Returns: the current value get() Returns the current value, with memory effects as specified by `VarHandle#getVolatile`.
public final int	Returns: the value getAcquire() Returns the current value, with memory effects as specified by `VarHandle#getAcquire`.
public final int	Returns: the previous value getAndAccumulate(int the update value x, IntBinaryOperator a side-effect-free function of two arguments accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function to the current and given values, returning the previous value.
public final int	Returns: the previous value getAndAdd(int the value to add delta) Atomically adds the given value to the current value, with memory effects as specified by `VarHandle#getAndAdd`.
public final int	Returns: the previous value getAndDecrement() Atomically decrements the current value, with memory effects as specified by `VarHandle#getAndAdd`.
public final int	Returns: the previous value getAndIncrement() Atomically increments the current value, with memory effects as specified by `VarHandle#getAndAdd`.
public final int	Returns: the previous value getAndSet(int the new value newValue) Atomically sets the value to `newValue` and returns the old value, with memory effects as specified by `VarHandle#getAndSet`.
public final int	Returns: the previous value getAndUpdate(IntUnaryOperator a side-effect-free function updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function, returning the previous value.
public final int	Returns: the value getOpaque() Returns the current value, with memory effects as specified by `VarHandle#getOpaque`.
public final int	Returns: the value getPlain() Returns the current value, with memory semantics of reading as if the variable was declared non-`volatile`.
public final int	Returns: the updated value incrementAndGet() Atomically increments the current value, with memory effects as specified by `VarHandle#getAndAdd`.
public int	intValue() Implements abstract java.lang.Number.intValue. Returns the current value of this `AtomicInteger` as an `int`, with memory effects as specified by `VarHandle#getVolatile`.
public final void	lazySet(int the new value newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setRelease`.
public long	longValue() Implements abstract java.lang.Number.longValue. Returns the current value of this `AtomicInteger` as a `long` after a widening primitive conversion, with memory effects as specified by `VarHandle#getVolatile`.
public final void	set(int the new value newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setVolatile`.
public final void	setOpaque(int the new value newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setOpaque`.
public final void	setPlain(int the new value newValue) Sets the value to `newValue`, with memory semantics of setting as if the variable was declared non-`volatile` and non-`final`.
public final void	setRelease(int the new value newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setRelease`.
public String	Returns: the String representation of the current value toString() Overrides java.lang.Object.toString. Returns the String representation of the current value.
public final int	Returns: the updated value updateAndGet(IntUnaryOperator a side-effect-free function updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function, returning the updated value.
public final boolean	Returns: `true` if successful weakCompareAndSet(int the expected value expectedValue, int the new value newValue) Deprecated since 9. This method has plain memory effects but the method name implies volatile memory effects (see methods such as `compareAndExchange` and `compareAndSet`). Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`.
public final boolean	Returns: `true` if successful weakCompareAndSetAcquire(int the expected value expectedValue, int the new value newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetAcquire`.
public final boolean	Returns: `true` if successful weakCompareAndSetPlain(int the expected value expectedValue, int the new value newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`.
public final boolean	Returns: `true` if successful weakCompareAndSetRelease(int the expected value expectedValue, int the new value newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetRelease`.
public final boolean	Returns: `true` if successful weakCompareAndSetVolatile(int the expected value expectedValue, int the new value newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSet`.

Inherited from java.lang.Number:: byteValue shortValue

serialVersionUID	back to summary
private static final long serialVersionUID Hides java.lang.Number.serialVersionUID.

U	back to summary
private static final Unsafe U

VALUE	back to summary
private static final long VALUE

value	back to summary
private volatile int value

AtomicInteger	back to summary
public AtomicInteger(int initialValue) Creates a new AtomicInteger with the given initial value. Parameters initialValue:int the initial value

AtomicInteger	back to summary
public AtomicInteger() Creates a new AtomicInteger with initial value `0`.

Method Detail

accumulateAndGet back to summary

accumulateAndGet	back to summary
public final int accumulateAndGet(int x, IntBinaryOperator accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function to the current and given values, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value as its first argument, and the given update as the second argument. Parameters x:int the update value accumulatorFunction:IntBinaryOperator a side-effect-free function of two arguments Returns:int the updated value Since 1.8

public final int accumulateAndGet(int x, IntBinaryOperator accumulatorFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the current value with the results of applying the given function to the current and given values, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value as its first argument, and the given update as the second argument.

Parameters

x:int: the update value
accumulatorFunction:IntBinaryOperator: a side-effect-free function of two arguments

Returns:int

the updated value

Since

1.8

addAndGet back to summary

addAndGet	back to summary
public final int addAndGet(int delta) Atomically adds the given value to the current value, with memory effects as specified by `VarHandle#getAndAdd`. Parameters delta:int the value to add Returns:int the updated value

public final int addAndGet(int delta)

Atomically adds the given value to the current value, with memory effects as specified by VarHandle#getAndAdd.

Parameters

delta:int: the value to add

Returns:int

the updated value

compareAndExchange back to summary

compareAndExchange	back to summary
public final int compareAndExchange(int expectedValue, int newValue) Atomically sets the value to `newValue` if the current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchange`. Parameters expectedValue:int the expected value newValue:int the new value Returns:int the witness value, which will be the same as the expected value if successful Since 9

public final int compareAndExchange(int expectedValue, int newValue)

Atomically sets the value to newValue if the current value, referred to as the witness value, == expectedValue, with memory effects as specified by VarHandle#compareAndExchange.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:int

the witness value, which will be the same as the expected value if successful

Since

compareAndExchangeAcquire back to summary

compareAndExchangeAcquire	back to summary
public final int compareAndExchangeAcquire(int expectedValue, int newValue) Atomically sets the value to `newValue` if the current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeAcquire`. Parameters expectedValue:int the expected value newValue:int the new value Returns:int the witness value, which will be the same as the expected value if successful Since 9

public final int compareAndExchangeAcquire(int expectedValue, int newValue)

Atomically sets the value to newValue if the current value, referred to as the witness value, == expectedValue, with memory effects as specified by VarHandle#compareAndExchangeAcquire.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:int

the witness value, which will be the same as the expected value if successful

Since

compareAndExchangeRelease back to summary

compareAndExchangeRelease	back to summary
public final int compareAndExchangeRelease(int expectedValue, int newValue) Atomically sets the value to `newValue` if the current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeRelease`. Parameters expectedValue:int the expected value newValue:int the new value Returns:int the witness value, which will be the same as the expected value if successful Since 9

public final int compareAndExchangeRelease(int expectedValue, int newValue)

Atomically sets the value to newValue if the current value, referred to as the witness value, == expectedValue, with memory effects as specified by VarHandle#compareAndExchangeRelease.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:int

the witness value, which will be the same as the expected value if successful

Since

compareAndSet back to summary

compareAndSet	back to summary
public final boolean compareAndSet(int expectedValue, int newValue) Atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#compareAndSet`. Parameters expectedValue:int the expected value newValue:int the new value Returns:boolean `true` if successful. False return indicates that the actual value was not equal to the expected value.

public final boolean compareAndSet(int expectedValue, int newValue)

Atomically sets the value to newValue if the current value == expectedValue, with memory effects as specified by VarHandle#compareAndSet.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:boolean

true if successful. False return indicates that the actual value was not equal to the expected value.

decrementAndGet back to summary

decrementAndGet	back to summary
public final int decrementAndGet() Atomically decrements the current value, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `addAndGet(-1)`. Returns:int the updated value

public final int decrementAndGet()

Atomically decrements the current value, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to addAndGet(-1).

Returns:int: the updated value

doubleValue back to summary

doubleValue	back to summary
public double doubleValue() Implements abstract java.lang.Number.doubleValue. Returns the current value of this `AtomicInteger` as a `double` after a widening primitive conversion, with memory effects as specified by `VarHandle#getVolatile`. Java Language Specification 5.1.2 Widening Primitive Conversion

public double doubleValue()

Implements abstract java.lang.Number.doubleValue.

Returns the current value of this AtomicInteger as a double after a widening primitive conversion, with memory effects as specified by VarHandle#getVolatile.

Java Language Specification: 5.1.2 Widening Primitive Conversion

floatValue back to summary

floatValue	back to summary
public float floatValue() Implements abstract java.lang.Number.floatValue. Returns the current value of this `AtomicInteger` as a `float` after a widening primitive conversion, with memory effects as specified by `VarHandle#getVolatile`. Java Language Specification 5.1.2 Widening Primitive Conversion

public float floatValue()

Implements abstract java.lang.Number.floatValue.

Returns the current value of this AtomicInteger as a float after a widening primitive conversion, with memory effects as specified by VarHandle#getVolatile.

Java Language Specification: 5.1.2 Widening Primitive Conversion

get back to summary

get	back to summary
public final int get() Returns the current value, with memory effects as specified by `VarHandle#getVolatile`. Returns:int the current value

public final int get()

Returns the current value, with memory effects as specified by VarHandle#getVolatile.

Returns:int: the current value

getAcquire back to summary

getAcquire	back to summary
public final int getAcquire() Returns the current value, with memory effects as specified by `VarHandle#getAcquire`. Returns:int the value Since 9

public final int getAcquire()

Returns the current value, with memory effects as specified by VarHandle#getAcquire.

Returns:int: the value
Since: 9

getAndAccumulate back to summary

getAndAccumulate	back to summary
public final int getAndAccumulate(int x, IntBinaryOperator accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function to the current and given values, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value as its first argument, and the given update as the second argument. Parameters x:int the update value accumulatorFunction:IntBinaryOperator a side-effect-free function of two arguments Returns:int the previous value Since 1.8

public final int getAndAccumulate(int x, IntBinaryOperator accumulatorFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the current value with the results of applying the given function to the current and given values, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value as its first argument, and the given update as the second argument.

Parameters

x:int: the update value
accumulatorFunction:IntBinaryOperator: a side-effect-free function of two arguments

Returns:int

the previous value

Since

1.8

getAndAdd back to summary

getAndAdd	back to summary
public final int getAndAdd(int delta) Atomically adds the given value to the current value, with memory effects as specified by `VarHandle#getAndAdd`. Parameters delta:int the value to add Returns:int the previous value

public final int getAndAdd(int delta)

Atomically adds the given value to the current value, with memory effects as specified by VarHandle#getAndAdd.

Parameters

delta:int: the value to add

Returns:int

the previous value

getAndDecrement back to summary

getAndDecrement	back to summary
public final int getAndDecrement() Atomically decrements the current value, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `getAndAdd(-1)`. Returns:int the previous value

public final int getAndDecrement()

Atomically decrements the current value, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to getAndAdd(-1).

Returns:int: the previous value

getAndIncrement back to summary

getAndIncrement	back to summary
public final int getAndIncrement() Atomically increments the current value, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `getAndAdd(1)`. Returns:int the previous value

public final int getAndIncrement()

Atomically increments the current value, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to getAndAdd(1).

Returns:int: the previous value

getAndSet back to summary

getAndSet	back to summary
public final int getAndSet(int newValue) Atomically sets the value to `newValue` and returns the old value, with memory effects as specified by `VarHandle#getAndSet`. Parameters newValue:int the new value Returns:int the previous value

public final int getAndSet(int newValue)

Atomically sets the value to newValue and returns the old value, with memory effects as specified by VarHandle#getAndSet.

Parameters

newValue:int: the new value

Returns:int

the previous value

getAndUpdate back to summary

getAndUpdate	back to summary
public final int getAndUpdate(IntUnaryOperator updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. Parameters updateFunction:IntUnaryOperator a side-effect-free function Returns:int the previous value Since 1.8

public final int getAndUpdate(IntUnaryOperator updateFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the current value with the results of applying the given function, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads.

Parameters

updateFunction:IntUnaryOperator: a side-effect-free function

Returns:int

the previous value

Since

1.8

getOpaque back to summary

getOpaque	back to summary
public final int getOpaque() Returns the current value, with memory effects as specified by `VarHandle#getOpaque`. Returns:int the value Since 9

public final int getOpaque()

Returns the current value, with memory effects as specified by VarHandle#getOpaque.

Returns:int: the value
Since: 9

getPlain back to summary

getPlain	back to summary
public final int getPlain() Returns the current value, with memory semantics of reading as if the variable was declared non-`volatile`. Returns:int the value Since 9

public final int getPlain()

Returns the current value, with memory semantics of reading as if the variable was declared non-volatile.

Returns:int: the value
Since: 9

incrementAndGet back to summary

incrementAndGet	back to summary
public final int incrementAndGet() Atomically increments the current value, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `addAndGet(1)`. Returns:int the updated value

public final int incrementAndGet()

Atomically increments the current value, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to addAndGet(1).

Returns:int: the updated value

intValue back to summary

intValue	back to summary
public int intValue() Implements abstract java.lang.Number.intValue. Returns the current value of this `AtomicInteger` as an `int`, with memory effects as specified by `VarHandle#getVolatile`. Equivalent to `get()`.

public int intValue()

Implements abstract java.lang.Number.intValue.

Returns the current value of this AtomicInteger as an int, with memory effects as specified by VarHandle#getVolatile. Equivalent to get().

lazySet back to summary

lazySet	back to summary
public final void lazySet(int newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setRelease`. Parameters newValue:int the new value Since 1.6

public final void lazySet(int newValue)

Sets the value to newValue, with memory effects as specified by VarHandle#setRelease.

Parameters

newValue:int: the new value

Since

1.6

longValue back to summary

longValue	back to summary
public long longValue() Implements abstract java.lang.Number.longValue. Returns the current value of this `AtomicInteger` as a `long` after a widening primitive conversion, with memory effects as specified by `VarHandle#getVolatile`. Java Language Specification 5.1.2 Widening Primitive Conversion

public long longValue()

Implements abstract java.lang.Number.longValue.

Returns the current value of this AtomicInteger as a long after a widening primitive conversion, with memory effects as specified by VarHandle#getVolatile.

Java Language Specification: 5.1.2 Widening Primitive Conversion

set back to summary

set	back to summary
public final void set(int newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setVolatile`. Parameters newValue:int the new value

public final void set(int newValue)

Sets the value to newValue, with memory effects as specified by VarHandle#setVolatile.

Parameters

newValue:int: the new value

setOpaque back to summary

setOpaque	back to summary
public final void setOpaque(int newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setOpaque`. Parameters newValue:int the new value Since 9

public final void setOpaque(int newValue)

Sets the value to newValue, with memory effects as specified by VarHandle#setOpaque.

Parameters

newValue:int: the new value

Since

setPlain back to summary

setPlain	back to summary
public final void setPlain(int newValue) Sets the value to `newValue`, with memory semantics of setting as if the variable was declared non-`volatile` and non-`final`. Parameters newValue:int the new value Since 9

public final void setPlain(int newValue)

Sets the value to newValue, with memory semantics of setting as if the variable was declared non-volatile and non-final.

Parameters

newValue:int: the new value

Since

setRelease back to summary

setRelease	back to summary
public final void setRelease(int newValue) Sets the value to `newValue`, with memory effects as specified by `VarHandle#setRelease`. Parameters newValue:int the new value Since 9

public final void setRelease(int newValue)

Sets the value to newValue, with memory effects as specified by VarHandle#setRelease.

Parameters

newValue:int: the new value

Since

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Returns the String representation of the current value. Returns:String the String representation of the current value

toString

back to summary

public String toString()

Overrides java.lang.Object.toString.

Returns the String representation of the current value.

Returns:String: the String representation of the current value

updateAndGet back to summary

updateAndGet	back to summary
public final int updateAndGet(IntUnaryOperator updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the current value with the results of applying the given function, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. Parameters updateFunction:IntUnaryOperator a side-effect-free function Returns:int the updated value Since 1.8

public final int updateAndGet(IntUnaryOperator updateFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the current value with the results of applying the given function, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads.

Parameters

updateFunction:IntUnaryOperator: a side-effect-free function

Returns:int

the updated value

Since

1.8

weakCompareAndSet back to summary

weakCompareAndSet	back to summary
public final boolean weakCompareAndSet(int expectedValue, int newValue) Deprecated since 9. This method has plain memory effects but the method name implies volatile memory effects (see methods such as `compareAndExchange` and `compareAndSet`). To avoid confusion over plain or volatile memory effects it is recommended that the method `weakCompareAndSetPlain` be used instead. Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`. Parameters expectedValue:int the expected value newValue:int the new value Returns:boolean `true` if successful Annotations @Deprecated since:9 See Also `weakCompareAndSetPlain`

public final boolean weakCompareAndSet(int expectedValue, int newValue)

Deprecated

since 9.

This method has plain memory effects but the method name implies volatile memory effects (see methods such as compareAndExchange and compareAndSet). To avoid confusion over plain or volatile memory effects it is recommended that the method weakCompareAndSetPlain be used instead.

Possibly atomically sets the value to newValue if the current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetPlain.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:boolean

true if successful

Annotations

@Deprecated
since:9

See Also

weakCompareAndSetPlain

weakCompareAndSetAcquire back to summary

weakCompareAndSetAcquire	back to summary
public final boolean weakCompareAndSetAcquire(int expectedValue, int newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetAcquire`. Parameters expectedValue:int the expected value newValue:int the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetAcquire(int expectedValue, int newValue)

Possibly atomically sets the value to newValue if the current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetAcquire.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:boolean

true if successful

Since

weakCompareAndSetPlain back to summary

weakCompareAndSetPlain	back to summary
public final boolean weakCompareAndSetPlain(int expectedValue, int newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`. Parameters expectedValue:int the expected value newValue:int the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetPlain(int expectedValue, int newValue)

Possibly atomically sets the value to newValue if the current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetPlain.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:boolean

true if successful

Since

weakCompareAndSetRelease back to summary

weakCompareAndSetRelease	back to summary
public final boolean weakCompareAndSetRelease(int expectedValue, int newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetRelease`. Parameters expectedValue:int the expected value newValue:int the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetRelease(int expectedValue, int newValue)

Possibly atomically sets the value to newValue if the current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetRelease.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:boolean

true if successful

Since

weakCompareAndSetVolatile back to summary

weakCompareAndSetVolatile	back to summary
public final boolean weakCompareAndSetVolatile(int expectedValue, int newValue) Possibly atomically sets the value to `newValue` if the current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSet`. Parameters expectedValue:int the expected value newValue:int the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetVolatile(int expectedValue, int newValue)

Possibly atomically sets the value to newValue if the current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSet.

Parameters

expectedValue:int: the expected value
newValue:int: the new value

Returns:boolean

true if successful

Since

public Class AtomicInteger

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail