Java Duration compareTo(Duration)用法及代码示例

java.time包中的Duration Class的compareTo(Duration)方法用于将该持续时间与作为参数传递的持续时间进行比较。

用法:

public int compareTo(Duration otherDuration)

参数：此方法接受参数otherDuration，该参数是将与该持续时间进行比较的持续时间。

返回值：此方法返回一个int值，其中负值表示otherDuration大于此值，零表示otherDuration等于该持续时间，正值表示此持续时间大于otherDuration。

以下示例说明了Duration.compareTo()方法：

示例1:

// Java code to illustrate compareTo() method 
  
import java.time.Duration; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // Duration using parse() method 
        Duration duration1 
            = Duration.parse("P2DT3H4M"); 
  
        // Duration using ofDays() method 
        Duration duration2 
            = Duration.ofDays(10); 
  
        // Compare the durations 
        // using compareTo() method 
        System.out.println(duration1 
                               .compareTo(duration2)); 
    } 
}

输出：

-1

示例2:

// Java code to illustrate compareTo() method 
  
import java.time.Duration; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // Duration using ofHours() method 
        Duration duration1 
            = Duration.ofHours(5); 
  
        // Duration using ofHours() method 
        Duration duration2 
            = Duration.ofHours(5); 
  
        // Compare the durations 
        // using compareTo() method 
        System.out.println(duration1 
                               .compareTo(duration2)); 
    } 
}

输出：

示例3:

// Java code to illustrate compareTo() method 
  
import java.time.Duration; 
  
public class GFG { 
    public static void main(String[] args) 
    { 
  
        // Duration using ofDays() method 
        Duration duration1 
            = Duration.ofDays(5); 
  
        // Duration using ofHours() method 
        Duration duration2 
            = Duration.ofHours(5); 
  
        // Compare the durations 
        // using compareTo() method 
        System.out.println(duration1 
                               .compareTo(duration2)); 
    } 
}

输出：

参考： Oracle Doc

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