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Java AtomicLong lazySet()用法及代码示例


Java.util.concurrent.atomic.AtomicLong.lazySet()是Java中的内置方法,可更新先前的值并将其设置为在参数中传递的新值。

用法:

public final void lazySet(long newVal)

参数:该函数接受将要更新的单个必需参数newVal。


返回值:该函数不返回任何内容。

以下示例程序旨在说明上述方法:

示例1:

// Java program that demonstrates 
// the lazySet() function 
  
import java.util.concurrent.atomic.AtomicLong; 
  
public class GFG { 
    public static void main(String args[]) 
    { 
  
        // Initially value as 0 
        AtomicLong val 
            = new AtomicLong(0); 
  
        System.out.println("Previous value: "
                           + val); 
  
        val.lazySet(10); 
  
        // Prints the updated value 
        System.out.println("Current value: "
                           + val); 
    } 
}
输出:
Previous value: 0
Current value: 10

示例2:

// Java program that demonstrates 
// the lazySet() function 
  
import java.util.concurrent.atomic.AtomicLong; 
  
public class GFG { 
    public static void main(String args[]) 
    { 
  
        // Initially value as 18 
        AtomicLong val = new AtomicLong(18); 
  
        System.out.println("Previous value: "
                           + val); 
  
        val.lazySet(200); 
  
        // Prints the updated value 
        System.out.println("Current value: "
                           + val); 
    } 
}
输出:
Previous value: 18
Current value: 200

参考: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicLong.html#lazySet–



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注:本文由纯净天空筛选整理自gopaldave大神的英文原创作品 AtomicLong lazySet() method in Java with examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。