Java TimeZone clone()用法及代碼示例

Java中的TimeZone類的clone()方法用於創建現有此TimeZone的相同副本。

用法:

time_zone.clone()

參數：該方法不帶任何參數。

返回值：該方法返回TimeZone的實例，該實例是此TimeZone的副本。

下麵的程序演示了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()); 
    } 
}

輸出：

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()); 
    } 
}

輸出：

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]]

相關用法

注：本文由純淨天空篩選整理自Chinmoy Lenka大神的英文原創作品 TimeZone clone() Method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。