Java program to reverse a number

Java program to reverse a number is one of the simplest programming problems. The JAVA program that reverses a number is given.

package MathUtility;

class ReverseNumber
{
 int reverse(int num)
 {
  int rev=0, rem;
  
  while(num>0)
  {
   rem = num % 10;
   rev = (rev*10)+ rem;
   num=num/10;
  }
  
  return rev;
 }
 
 public static void main(String args[])
 {
  if(args.length==0)
   System.out.println("No Input provided");
  else
  {
   int num = Integer.parseInt(args[0]);
   ReverseNumber rn = new ReverseNumber();
   
   System.out.println("Reverse of the number " + num + " is " + rn.reverse(num));
  }
 }
}

To compile the program

javac -d . ReverseNumber.java

To run the program

java MathUtility.ReverseNumber 1115001