Assignment #3 Answer

This morning, I put chapter 12 and Assignment 3 behind me. At the rist of invoking the Sin of Pride, I'm pretty proud of myself. Huzzah indeed.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class StringSwapper extends JFrame implements ActionListener {
   JTextField inputField = new JTextField("String", 5);
   JButton pressMe = new JButton("Press Me");
   JTextField outputField = new JTextField(5);

   public StringSwapper() {
      super("Convert a String");
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      FlowLayout flow = new FlowLayout(FlowLayout.CENTER);
      pressMe.addActionListener(this);

      getContentPane().setLayout(flow);
      getContentPane().add(inputField);
      getContentPane().add(pressMe);
      getContentPane().add(outputField);
      pack();
      setVisible(true);
   }

   public void actionPerformed(ActionEvent evt) {
      String input = new String(inputField.getText());
      int len = input.length();
      char[] gnirts = new char[len];

      for (int i = len - 1, c = 0; i > -1; i--, c++) {
         gnirts[c] = input.charAt(i);
      }

      String output = new String(gnirts);
      outputField.setText(output);
      setTitle("Huzzah!");
   }

   public static void main(String[] args) {
      StringSwapper ss = new StringSwapper();
   }
}