We need to write a java program to reverse a number and output it.


A number in java can be reversed in multiple ways. Let’s see each of them.

Steps to Reverse a Number

  1. Take a number as input (num).
  2. Extract the last digit from (num) using num%10 and concatenete it to (rev).
  3. Remove the last digit from (num) using num/10.
  4. Repeat step 2 and 3 till last digit of (num).

reverse of the number

Reverse Number in Java using While Loop


Reverse Number in Java Without using Another Variable


If you have any doubts, comment below.

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