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Java TimeZone clone()用法及代码示例

Java中的TimeZone类的clone()方法用于创建现有此TimeZone的相同副本。

用法:

time_zone.clone()

参数:该方法不带任何参数。


返回值:该方法返回TimeZone的实例,该实例是此TimeZone的副本。

下面的程序演示了TimeZone的clone()方法的用法:

示例1:

// Java code to illustrate clone() method 
  
import java.util.*; 
  
public class TimeZoneDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an object of TimeZone class. 
        TimeZone time_zone 
            = TimeZone.getDefault(); 
        System.out.println("Original TimeZone: "
                           + time_zone); 
  
        System.out.println(); 
  
        // Cloning and displaying the time zone 
        System.out.println("Cloned TimeZone: "
                           + time_zone.clone()); 
    } 
}
输出:

Original TimeZone:
sun.util.calendar.ZoneInfo[id=”Etc/UTC”,offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]

Cloned TimeZone:
sun.util.calendar.ZoneInfo[id=”Etc/UTC”,offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]

示例2:

// Java code to illustrate clone() method 
  
import java.util.*; 
  
public class TimeZoneDemo { 
    public static void main(String args[]) 
    { 
  
        // creating Timezone object whose id is Europe/Berlin 
        TimeZone time_zone 
            = TimeZone.getTimeZone("Europe/Berlin"); 
  
        System.out.println("Original TimeZone: "
                           + time_zone); 
  
        System.out.println(); 
  
        // Cloning and displaying the time zone 
        System.out.println("Cloned TimeZone: "
                           + time_zone.clone()); 
    } 
}
输出:

Original TimeZone:
sun.util.calendar.ZoneInfo[id=”Europe/Berlin”,offset=3600000,dstSavings=3600000,useDaylight=true,transitions=143,lastRule=java.util.SimpleTimeZone[id=Europe/Berlin,offset=3600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=2,startMonth=2,startDay=-1,startDayOfWeek=1,startTime=3600000,startTimeMode=2,endMode=2,endMonth=9,endDay=-1,endDayOfWeek=1,endTime=3600000,endTimeMode=2]]

Cloned TimeZone:
sun.util.calendar.ZoneInfo[id=”Europe/Berlin”,offset=3600000,dstSavings=3600000,useDaylight=true,transitions=143,lastRule=java.util.SimpleTimeZone[id=Europe/Berlin,offset=3600000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=2,startMonth=2,startDay=-1,startDayOfWeek=1,startTime=3600000,startTimeMode=2,endMode=2,endMonth=9,endDay=-1,endDayOfWeek=1,endTime=3600000,endTimeMode=2]]



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注:本文由纯净天空筛选整理自Chinmoy Lenka大神的英文原创作品 TimeZone clone() Method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文的传播和使用请遵循“署名-相同方式共享 4.0 国际 (CC BY-SA 4.0)”协议。