Java Program to check the entered String is a Palindrome String or not

import java.io.*;
import java.util.*;
public class PalindromeString{
    Scanner scan=new Scanner(System.in);
    String str;
    public void input(){
        try{
            System.out.println("Enter any String:- ");
            str=scan.nextLine();
            compute();
        }
        catch(Exception e){
            System.out.println(e);
            System.exit(0);
        }
    }

    public void compute(){
        StringBuffer reversed=(new StringBuffer(str)).reverse();
        System.out.println("Reversed String: "+reversed);
        if(str.equals(reversed.toString()))         
            System.out.println("\""+str+"\" is a Palindrome!");       
        else if(str.equalsIgnoreCase(reversed.toString()))
            System.out.println("\""+str+"\" is a Palindrome if case is ignored!");
        else
            System.out.println("\""+str+"\" is not a Palindrome!");
    }

    public static void main(String[] args){
        PalindromeString obj=new PalindromeString();
        obj.input();
    }
}