Counter

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所有已知实现类:

COUNTER.CounterImpl
```
public interface Counter
```
从以下版本开始:

3.0.0

作者:

Bela Ban

方法概要

方法
限定符和类型	方法和说明
`long`	`addAndGet(long delta)` Atomically adds the given value to the current value.
`boolean`	`compareAndSet(long expect, long update)` Atomically updates the counter using a CAS operation
`long`	`decrementAndGet()` Atomically decrements the counter and returns the new value
`long`	`get()` Gets the current value of the counter
`java.lang.String`	`getName()`
`long`	`incrementAndGet()` Atomically increments the counter and returns the new value
`void`	`set(long new_value)` Sets the counter to a new value

- 方法详细资料
  - getName
```
java.lang.String getName()
```
  - get
```
long get()
```
    Gets the current value of the counter
    
    返回:
    The current value
  - set
```
void set(long new_value)
```
    Sets the counter to a new value
    
    参数:
    new_value - The new value
  - compareAndSet
```
boolean compareAndSet(long expect,
                    long update)
```
    Atomically updates the counter using a CAS operation
    
    参数:
    expect - The expected value of the counter
    update - The new value of the counter
    
    返回:
    True if the counter could be updated, false otherwise
  - incrementAndGet
```
long incrementAndGet()
```
    Atomically increments the counter and returns the new value
    
    返回:
    The new value
  - decrementAndGet
```
long decrementAndGet()
```
    Atomically decrements the counter and returns the new value
    
    返回:
    The new value
  - addAndGet
```
long addAndGet(long delta)
```
    Atomically adds the given value to the current value.
    
    参数:
    delta - the value to add
    
    返回:
    the updated value

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