Java program to reverse a given number

import java.io.*;
class Reverse
{
public static void main(String args[])
{
int n,rev=0,i;
BufferedReader br=new BufferedReader (new InputStreamReader(System.in));
try
{
System.out.print("\n Enter a number : ");
n=Integer.parseInt(br.readLine());

while(n!=0)
{
i=n%10;
rev=(rev*10)+i;
n/=10;
}
}
catch(Exception e)
{
System.out.println(e.getMessage());
}

System.out.println("\n Reverse of number is : "+rev);
}
}

                                                      Output