Reverse number in java

Reverse a integer in java

while(num != 0) 
{
   int digit = num % 10;
   reversed = reversed * 10 + digit;
   num /= 10;
}

Reverse number in java

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

    int num = 1234, reversed = 0;
    
    System.out.println("Original Number: " + num);

    // run loop until num becomes 0
    while(num != 0) {
    
      // get last digit from num
      int digit = num % 10;
      reversed = reversed * 10 + digit;

      // remove the last digit from num
      num /= 10;
    }

    System.out.println("Reversed Number: " + reversed);
  }
}

Source: programiz.com

How to reverse a number in java

int rev= 0;
while(num > 9)
{
  rev= rev*10 + num%10;
  num/= 10;
}

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