Java 中的 TimeUnit sleep()方法，示例

原文:https://www . geesforgeks . org/time unit-sleep-in-Java-method-with-examples/

时间单位类的睡眠()方法用于使用该时间单位执行线程睡眠。这是一个方便的方法，它将时间参数休眠成 Thread.sleep 方法所需的形式。

语法:

public void sleep(long timeout)
           throws InterruptedException

参数:该方法接受一个强制参数超时，这是最小的睡眠时间。如果这小于或等于零，则根本不要睡觉。

返回值:这个方法不返回任何东西。

异常:此方法抛出中断异常如果在睡觉时被中断。

下面的程序说明了 TimeUnit sleep()方法的实现:

程序 1:

// Java program to demonstrate
// sleep() method of TimeUnit Class

import java.util.concurrent.*;

class GFG {
    public static void main(String args[])
    {
        // Get time to sleep
        long timeToSleep = 0L;

        // Create a TimeUnit object
        TimeUnit time = TimeUnit.SECONDS;

        try {

            System.out.println("Going to sleep for "
                               + timeToSleep
                               + " seconds");

            // using sleep() method
            time.sleep(timeToSleep);

            System.out.println("Slept for "
                               + timeToSleep
                               + " seconds");
        }

        catch (InterruptedException e) {
            System.out.println("Interrupted "
                               + "while Sleeping");
        }
    }
}

Output:

Going to sleep for 0 seconds
Slept for 0 seconds

程序 2:

// Java program to demonstrate
// sleep() method of TimeUnit Class

import java.util.concurrent.*;

class GFG {
    public static void main(String args[])
    {
        // Get time to sleep
        long timeToSleep = 10L;

        // Create a TimeUnit object
        TimeUnit time = TimeUnit.SECONDS;

        try {

            System.out.println("Going to sleep for "
                               + timeToSleep
                               + " seconds");

            // using sleep() method
            time.sleep(timeToSleep);

            System.out.println("Slept for "
                               + timeToSleep
                               + " seconds");
        }

        catch (InterruptedException e) {
            System.out.println("Interrupted "
                               + "while Sleeping");
        }
    }
}

Output:

Going to sleep for 10 seconds
Slept for 10 seconds

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