CJ-13: Reverse a number

Type the programs in NOTEPAD or DOS prompt itself, for Consol Application.
Type in NETBEANS or ECLIPSE for Window Application.
Here after , I am just typing the programs only..to know more about it , refer

Introduction to JAVA 

before doing any JAVA Programs.

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import java.io.*;

class reverse

{

public static void main(String args[])

{

   int r,n;

   int rev=0;

   try

   {

DataInputStream x=new DataInputStream(System.in);

System.out.println("Enter a number :");

n=Integer.parseInt(x.readLine());

while(n>0);

{

   r=n%10;

   rev=rev*10+r;

   n=(int)(n/10);

}

System.out.println("Number Reversed is :"+rev);

    }

    catch(Exception e)

    {

    }

}

}

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Output :

Enter a number :

143

Number Reversed is :

341