duration java

持续时间类plusHours()方法 (Duration Class plusHours() method)

• plusHours() method is available in java.time package.

  plusHours()方法在java.time包中可用。

• plusHours() method is used to add the given duration in hours to this Duration and return the Duration.

  plusHours()方法用于将以小时为单位的给定持续时间添加到此Duration中，并返回Duration。

• plusHours() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  plusHours()方法是一种非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• plusHours() method may throw an exception at the time of performing addition.

  plusHours()方法在执行加法时可能会引发异常。

  ArithmeticException: This exception may throw when the calculated results exceed the length of this Duration.

  ArithmeticException ：当计算结果超过此Duration的长度时，可能引发此异常。

Syntax:

句法：

public Duration plusHours(long hrs_val);

Parameter(s):

参数：

• long hrs_val – represents the hours value to add to this Duration.

  long hrs_val –表示要添加到此工期的小时值。

Return value:

返回值：

The return type of this method is Duration, it returns the Duration that holds the value added the given hours to this Duration.

此方法的返回类型为Duration ，它返回的Duration包含将给定小时数添加到此Duration中的值。

Example:

例：

// Java program to demonstrate the example // of plusHours(long hrs_val) method of Durationimport java.time.*;public class PlusHoursOfDuration {
       public static void main(String args[]) {
           long hours = 5;        // Instantiates two Duration objects        Duration du1 = Duration.ofHours(6);        Duration du2 = Duration.parse("P2DT2H20M");        // Display du1, du2         System.out.println("du1: " + du1);        System.out.println("du2: " + du2);        System.out.println("hours to add: " + 5);        System.out.println();        // adds the given duration in hours with this         // Duration du1 and returns the Duration i.e.         // here we are adding the given 5 hours with         // this du1 that holds the value of 6 hours         // (6H +5H = 11H)        Duration plus_val = du1.plusHours(hours);        // Display plus_val        System.out.println("du1.plusHours(hours): " + plus_val);        // adds the given duration in hours with this         // Duration du2 and returns the Duration         // i.e. here we are adding the given 5 hours         // with this du2 that holds the value of         // 2D:2H:20M (2D = 48H , 2H +5H =55H)        plus_val = du2.plusHours(hours);        // Display plus_val        System.out.println("du2.plusHours(hours): " + plus_val);    }}

Output

输出量

du1: PT6Hdu2: PT50H20Mhours to add: 5du1.plusHours(hours): PT11Hdu2.plusHours(hours): PT55H20M

翻译自:

duration java