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How to reverse a number in java?

class Reverse

{

   public static void main(String args[])

   {

      int num=564;

      int reverse =0;

      while( num != 0 )

      {

          reverse = reverse * 10;

          reverse = reverse + num%10;

          num = num/10;

      }

      System.out.println(""Reverse  is: ""+reverse);

   }

}
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