Java API Tutorial - Java AtomicLong.compareAndSet(long expect, long update)

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Syntax

AtomicLong.compareAndSet(long expect, long update) has the following syntax.

public final boolean compareAndSet(long expect,   long update)

Example

In the following code shows how to use AtomicLong.compareAndSet(long expect, long update) method.

/*from ww  w . jav a 2  s . com*/
import java.util.concurrent.atomic.AtomicLong;

public class Main {
  public static void main(String[] argv) {
    AtomicLong nextId = new AtomicLong();


    nextId.compareAndSet(122L,123L);
    System.out.println(nextId.getAndIncrement());
    
    
    
  }
}

The code above generates the following result.

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