java.util.TimeZone.setDefault(TimeZone zone) 方法

package com.codingdict;

import java.util.*;

public class TimeZoneDemo {
   public static void main( String args[] ) {

      // create time zone object
      TimeZone tzone = TimeZone.getTimeZone("America/Los_Angeles");

      // set time zone to default
      tzone.setDefault(tzone);

      // checking default time zone
      System.out.println("Default time zone:" +tzone);
   }    
}