ReverseString.java

import java.util.Scanner;

/*
 *  System.in  (java.io.InputStream) is the standard input
 *  System.out (java.io.PrintStream) is the standard output
 */

public final class ReverseString {

   public static void main (final String[] args) {

      final Scanner stdin = new Scanner(System.in, "US-ASCII");

      // Read the standard input stream line by line.
      while (stdin.hasNextLine()) {
         // There is another line in the input stream.
         final String line = stdin.nextLine(); // get the next line from input
         // Reverse the string
         final String revs = new StringBuilder(line).reverse().toString();
         System.out.println(revs);             // write the string to output
      }
   }
}