palindrome in JAVA

Java program to find word is palindrome or not if not then make it.

import java.io.*;
public class Palindrome {
public static void main(String []argv) throws IOException
{
    String s2 ="";

     BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("enter the word");
StringBuffer b=new StringBuffer(br.readLine());
StringBuffer b1=new StringBuffer(b);
for(int i=b.length()-1;i>=0;i--)
{
   s2=s2+b.charAt(i);
}
if(b.toString().equalsIgnoreCase(s2))
{
    System.out.println("----------string is palindrome--------");
}
else
{
    System.out.println("--------string is not palindrome------");
 String b2=b1.reverse().toString();
 b1=b.append(b2);
 System.out.println("---------After making it palindrome-- \n"+b1);
}
}
}