Java TimeZone hasSameRules() Method

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Description

The Java TimeZone hasSameRules(TimeZone other) method returns true if this zone has the same rule and offset as another zone.

Declaration

Following is the declaration for java.util.TimeZone.hasSameRules() method.

public boolean hasSameRules(TimeZone other)

Parameters

other − This is the the TimeZone object to be compared with.

Return Value

The method call returns true if the other zone is not null and is the same as this one, with the possible exception of the ID.

Exception

NA

Checking two Same TimeZone to have Same Rules and Offset Example

The following example shows the usage of Java TimeZone hasSameRules() method to compare two time zone objects. We've created two TimeZone objects using getDefault() method. Using hasSameRules() we're compared the TimeZone objects and printed the result.

package com.tutorialspoint;

import java.util.TimeZone;

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

      // create two time zone objects     
      TimeZone timezoneone = TimeZone.getDefault();
      TimeZone timezonetwo = TimeZone.getDefault(); 

      // comparing two time zones
      boolean res = timezoneone.hasSameRules(timezonetwo);

      // checking the result   
      System.out.println("Comparison result:" +res );
   }    
}

Output

Let us compile and run the above program, this will produce the following result.

Comparison result:true

Checking GMT and BST TimeZones with same Offset to have Same Rules and Offset Example

The following example shows the usage of Java TimeZone hasSameRules() method to compare two time zone objects. We've created two TimeZone objects using SimpleTimeZone object of GMT and BST with same offset. Using hasSameRules() we're compared the TimeZone objects and printed the result.

package com.tutorialspoint;

import java.util.SimpleTimeZone;
import java.util.TimeZone;

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

      // create two time zone objects     
      TimeZone timezoneone = new SimpleTimeZone(60, "GMT");
      TimeZone timezonetwo = new SimpleTimeZone(60, "BST");

      // comparing two time zones
      boolean res = timezoneone.hasSameRules(timezonetwo);

      // checking the result   
      System.out.println("Comparison result:" +res );
   }    
}

Output

Let us compile and run the above program, this will produce the following result.

Comparison result:true

Checking GMT and BST TimeZones with different Offsets to have Same Rules and Offset Example

The following example shows the usage of Java TimeZone hasSameRules() method to compare two time zone objects. We've created two TimeZone objects using SimpleTimeZone object of GMT and BST with different offset. Using hasSameRules() we're compared the TimeZone objects and printed the result.

package com.tutorialspoint;

import java.util.SimpleTimeZone;
import java.util.TimeZone;

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

      // create two time zone objects     
      TimeZone timezoneone = new SimpleTimeZone(60, "GMT");
      TimeZone timezonetwo = new SimpleTimeZone(100, "BST");

      // comparing two time zones
      boolean res = timezoneone.hasSameRules(timezonetwo);

      // checking the result   
      System.out.println("Comparison result:" +res );
   }    
}

Output

Let us compile and run the above program, this will produce the following result.

Comparison result:false