Program to Reverse a String in Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class ReverseString
{

/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException
{
System.out.println("Enter a string to be reversed: ");
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(isr);
String str = br.readLine();
StringBuffer sb = new StringBuffer().append(str);
System.out.println("The reversed string is:\n"+sb.reverse().toString());
}

}