Java ZoneOffsetTransition compareTo()用法及代码示例

java.time.zone.ZoneOffsetTransition类的compareTo()方法用于在ZoneOffsetTransition类型的两个对象之间进行比较。根据过渡时刻进行比较。

用法:

public int compareTo(ZoneOffsetTransition transition)

参数：此方法采用ZoneoffsetTransition类型的过渡，并将其与此过渡进行比较。

返回值：如果ZoneOffsetTransition的两个对象相等，则此方法返回零；如果传递的过渡小于此过渡，则返回负值；如果传递的过渡大于此过渡，则返回正值。

下面是说明compareTo()方法的示例：

范例1：

// Java program to demonstrate 
// compareTo() method 
  
import java.util.*; 
import java.io.*; 
import java.time.*; 
import java.time.chrono.*; 
import java.time.zone.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
  
        // Creating and initializing the 
        // object of LocalDateTime 
        LocalDateTime loc 
            = LocalDateTime.of( 
                1999, 04, 25, 03, 
                24, 45, 0); 
  
        // Creating and initializing the 
        // object of ZoneOffset 
        ZoneOffset off1 
            = ZoneOffset.ofTotalSeconds( 
                8); 
  
        // Creating and initializing the 
        // object of ZoneOffset 
        ZoneOffset off2 
            = ZoneOffset.ofTotalSeconds( 
                12); 
  
        // Creating and initializing 
        // ZoneOffsetTransition Object 
        ZoneOffsetTransition zonetrans1 
            = ZoneOffsetTransition.of( 
                loc, off1, off2); 
  
        // Creating and initializing 
        // ZoneOffsetTransition Object 
        ZoneOffsetTransition zonetrans2 
            = ZoneOffsetTransition.of( 
                loc, off1, off2); 
  
        // Comparing both object using 
        // compareTo() method 
        int status 
            = zonetrans1.compareTo( 
                zonetrans2); 
  
        // Display the result 
        if (status == 0) 
            System.out.println( 
                "zonetrans1 is equal to zonetrans2"); 
        else if (status > 0) 
            System.out.println( 
                "zonetrans1 is greater than zonetrans2"); 
        else
            System.out.println( 
                "zonetrans1 is lesser than zonetrans2"); 
    } 
}

输出：

zonetrans1 is equal to zonetrans2

范例2：

// Java program to demonstrate 
// compareTo() method 
  
import java.util.*; 
import java.io.*; 
import java.time.*; 
import java.time.chrono.*; 
import java.time.zone.*; 
  
public class GFG { 
    public static void main(String[] argv) 
    { 
  
        // Creating and initializing the 
        // object of LocalDateTime 
        LocalDateTime loc 
            = LocalDateTime.of( 
                1999, 04, 25, 03, 
                24, 45, 0); 
  
        // Creating and initializing the 
        // object of ZoneOffset 
        ZoneOffset off1 
            = ZoneOffset.ofTotalSeconds( 
                8); 
  
        // Creating and initializing the 
        // object of ZoneOffset 
        ZoneOffset off2 
            = ZoneOffset.ofTotalSeconds( 
                12); 
  
        // Creating and initializing 
        // ZoneOffsetTransition Object 
        ZoneOffsetTransition zonetrans1 
            = ZoneOffsetTransition.of( 
                loc, off1, off2); 
  
        // Creating and initializing 
        // ZoneOffsetTransition Object 
        ZoneOffsetTransition zonetrans2 
            = ZoneOffsetTransition.of( 
                loc, off2, off1); 
  
        // Comparing both object using 
        // compareTo() method 
        int status 
            = zonetrans1.compareTo( 
                zonetrans2); 
  
        // Display the result 
        if (status == 0) 
            System.out.println( 
                "zonetrans1 is equal to zonetrans2"); 
        else if (status > 0) 
            System.out.println( 
                "zonetrans1 is greater than zonetrans2"); 
        else
            System.out.println( 
                "zonetrans1 is lesser than zonetrans2"); 
    } 
}

输出：

zonetrans1 is greater than zonetrans2

参考：https://docs.oracle.com/javase/9/docs/api/java/time/zone/ZoneOffsetTransition.html#compareTo-java.time.zone.ZoneOffsetTransition-

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注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 ZoneOffsetTransition compareTo() method in Java with Example。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。