Duration compareTo() 方法在 Java 中


在 Java 中的 Duration 类中使用 compareTo() 方法即可比较两个时间段。此方法需要单个参数,即要比较的时间段。

如果第一个时间段大于第二个时间段,则返回正数;如果第一个时间段小于第二个时间段,则返回负数;如果两个时间段相等,则返回零。

演示此方法的一个程序如下 -

示例

 在线示例演示

import java.time.Duration;
public class Demo {
   public static void main(String[] args) {
      Duration d1 = Duration.ofHours(8);
      Duration d2 = Duration.ofHours(6);
      System.out.println("The first duration is: " + d1);
      System.out.println("The second duration is: " + d2);
      int val = d1.compareTo(d2);
      if(val > 0)
         System.out.println("
The first duration is greater than the second duration"); else if(val < 0) System.out.println("
The first duration is lesser than the second duration"); else System.out.println("
The durations are equal"); } }

输出

The first duration is: PT8H
The second duration is: PT6H
The first duration is greater than the second duration

现在让我们理解上面的程序。

首先显示两个时间段。然后使用 compareTo() 方法比较这两个时间段,并使用 if else 语句显示结果。演示此方法的代码片段如下 -

Duration d1 = Duration.ofHours(8);
Duration d2 = Duration.ofHours(6);
System.out.println("The first duration is: " + d1);
System.out.println("The second duration is: " + d2);
int val = d1.compareTo(d2);
if(val > 0)
   System.out.println("
The first duration is greater than the second duration"); else if(val < 0) System.out.println("
The first duration is lesser than the second duration"); else System.out.println("
The durations are equal");

更新时间: 2019-7-30

7K+ 浏览

开始您的 职业生涯

完成课程以获得认证

开始学习
广告