Java中的 AtomicBooleanlazySet() 方法及示例
Java.util.concurrent.atomic.AtomicBoolean.lazySet()是Java中的一个内置方法,它更新先前的值并将其设置为在参数中传递的新值。
句法:
public final void lazySet(boolean newVal)
参数:该函数接受一个要更新的强制参数newVal 。
返回值:该函数不返回任何内容。
下面的程序说明了上述函数:
方案一:
// Java program that demonstrates
// the lazySet() function
import java.util.concurrent.atomic.AtomicBoolean;
public class GFG {
public static void main(String args[])
{
// Initially value as false
AtomicBoolean val
= new AtomicBoolean(false);
System.out.println("Previous value: "
+ val);
val.lazySet(true);
// Prints the updated value
System.out.println("Current value: "
+ val);
}
}
输出:
Previous value: false
Current value: true
方案二:
// Java program that demonstrates
// the lazySet() function
import java.util.concurrent.atomic.AtomicBoolean;
public class GFG {
public static void main(String args[])
{
// Initially value as true
AtomicBoolean val
= new AtomicBoolean(true);
System.out.println("Previous value: "
+ val);
val.lazySet(false);
// Prints the updated value
System.out.println("Current value: "
+ val);
}
}
输出:
Previous value: true
Current value: false
参考: https: Java/util/concurrent/atomic/AtomicBoolean.html#lazySet-boolean-