Java LocalTime minusHours()用法及代码示例

LocalTime类的minusHours()方法用于从此LocalTime中减去指定的Hours值，然后将结果作为LocalTime对象返回。这一瞬间是一成不变的。计算大约在午夜结束。

用法:

public LocalTime minusHours(long hoursToSubtract)

参数：此方法接受单个参数hoursToSubtract，它是要减去的小时数的值，它可以是负值。

返回值：此方法基于此时间返回LocalTime减去小时数。

以下示例程序旨在说明minusHours()方法：

示例1:

// Java program to demonstrate 
// LocalTime.minusHours() method 
  
import java.time.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create a LocalTime object 
        LocalTime time 
            = LocalTime.parse("19:34:50.63"); 
  
        // print LocalTime 
        System.out.println("LocalTime before subtraction: "
                           + time); 
  
        // subtract 3 hours using minusHours() 
        LocalTime value = time.minusHours(3); 
  
        // print result 
        System.out.println("LocalTime after subtraction: "
                           + value); 
    } 
}

输出：

LocalTime before subtraction: 19:34:50.630
LocalTime after subtraction: 16:34:50.630

示例2:

// Java program to demonstrate 
// LocalTime.minusHours() method 
  
import java.time.*; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // create a LocalTime object 
        LocalTime time 
            = LocalTime.parse("01:00:01"); 
  
        // print LocalTime 
        System.out.println("LocalTime before subtraction: "
                           + time); 
  
        // subtract 7 hours using minusHours() 
        LocalTime value = time.minusHours(7); 
  
        // print result 
        System.out.println("LocalTime after subtraction: "
                           + value); 
    } 
}

输出：

LocalTime before subtraction: 01:00:01
LocalTime after subtraction: 18:00:01

参考文献： https://docs.oracle.com/javase/10/docs/api/java/time/LocalTime.html#minusHours(long)

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注：本文由纯净天空筛选整理自AmanSingh2210大神的英文原创作品 LocalTime minusHours() method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。