极客教程Java TimeUnit sleep()方法及示例
TimeUnit类的sleep()方法用于使用该时间单位执行Thread.sleep。这是一个方便的方法，可以将时间参数睡成Thread.sleep方法所要求的形式。
语法。
public void sleep(long timeout)
throws InterruptedExceptionJava
参数。该方法接受一个强制性参数timeout，它是睡眠的最小时间。如果这个参数小于或等于0，那么就根本不进行睡眠。
返回值。这个方法不返回任何东西。
异常。如果在睡眠时被打断，该方法会抛出InterruptedException。
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");
}
}
}Java
输出:
Going to sleep for 0 seconds
Slept for 0 secondsJava
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");
}
}
}Java
输出:
Going to sleep for 10 seconds
Slept for 10 secondsJava