Java Duration compareTo(Duration)用法及代碼示例

java.time包中的Duration Class的compareTo(Duration)方法用於將該持續時間與作為參數傳遞的持續時間進行比較。

用法:

public int compareTo(Duration otherDuration)

參數：此方法接受參數otherDuration，該參數是將與該持續時間進行比較的持續時間。

返回值：此方法返回一個int值，其中負值表示otherDuration大於此值，零表示otherDuration等於該持續時間，正值表示此持續時間大於otherDuration。

以下示例說明了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)); 
    } 
}

輸出：

-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)); 
    } 
}

輸出：

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)); 
    } 
}

輸出：

參考： Oracle Doc

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