Java 中的 AtomicLong lazySet()方法,带示例

原文:https://www . geesforgeks . org/atomiclong-lazy set-method-in-Java-with-examples/

Java . util . concurrent . atomic . atomic clong . lazy set()是 Java 中的一个内置方法,它更新以前的值,并将其设置为一个新值,该值在参数中传递。

语法:

public final void lazySet(long newVal)

参数:该功能接受一个需要更新的强制参数新值

返回值:函数不返回任何内容。

下面的程序说明了上述方法:

程序 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

程序二:

// 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/atomic clong . html # lazySet–