Java ZoneOffsetTransition isValidOffset()用法及代码示例

java.time.zone.ZoneOffsetTransition类的isValidOffset()方法用于检查特定区域偏移在过渡期间是否有效。

用法:

public boolean isValidOffset(ZoneOffset offset)

参数：此方法用于将区域偏移对象的类型作为参数。

返回值：如果特定区域偏移在过渡期间有效或无效，则此方法返回true，否则返回false。

下面是说明isValidOffset()方法的示例：

范例1：

// Java program to demonstrate 
// isValidOffset() 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, 59, 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); 
  
        // comparing both object using 
        // isValidOffset() method 
        boolean status 
            = zonetrans1 
                  .isValidOffset( 
                      ZoneOffset 
                          .ofTotalSeconds(24)); 
  
        // display the result 
        if (status) 
            System.out.println("zoneoffset is valid"); 
        else
            System.out.println("zoneoffset is invalid"); 
    } 
}

输出：

zoneoffset is invalid

范例2：

// Java program to demonstrate 
// isValidOffset() 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, 59, 0); 
  
        // creating and initializing 
        // the object of ZoneOffset 
        ZoneOffset off1 
            = ZoneOffset.ofHoursMinutes(0, 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); 
  
        // comparing both object using 
        // isValidOffset() method 
        boolean status 
            = zonetrans1.isValidOffset(off1); 
  
        // display the result 
        if (status) 
            System.out.println("zoneoffset is valid"); 
        else
            System.out.println("zoneoffset is invalid"); 
    } 
}

输出：

zoneoffset is valid

输出：

zoneoffset is valid

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

相关用法

注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 ZoneOffsetTransition isValidOffset() 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。