Programming Activity 13-1

code in BOLD

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/* PalindromeClient * Anderson, Franceschi */

import javax.swing.JOptionPane; import javax.swing.JFrame; import java.awt.Graphics;

public class PalindromeClient extends JFrame { private Palindrome palind; boolean started = false;

public PalindromeClient() { palind = new Palindrome(); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(570, 400); setVisible(true); }

public Palindrome getPalindrome() { return palind; }

public void setStarted(boolean b) { started = b; }

public boolean recursivePalindrome(String pal) { // ***** Student writes the body of this method *****

// Using recursion, determine if a String representing // a word or a sentence is a palindrome // If it is, return true, otherwise return false // We call the method animate inside the body of this method // The call to animate is already coded below animate(pal);

// Student code starts here:

return true; // replace this dummy return statement

// Student code ends here. }

public void animate(String pal) { palind.updatePalindrome(pal); palind.setStarted(true); started = true; repaint(); try { Thread.sleep(1000); // wait for the animation to finish } catch (Exception e) { } }

public void paint(Graphics g) { if (started) { super.paint(g); palind.draw(g); } }

public String getPalString() { boolean goodInput = false; String palString = ""; // palString is limited to 26 characters while (!goodInput) { try { palString = JOptionPane.showInputDialog(null, "Enter a word or phrase between 1 and 26 characters long"); if (palString != null) { if (palString.length() <= 26 && palString.length() >= 1) { goodInput = true; } } else { System.exit(0); } } catch (Exception e) { } } return palString; }

public static void main(String[] args) { PalindromeClient app = new PalindromeClient(); // ask user for input boolean result = false;

// the program will loop until the user clicks on "Cancel" while (true) { String appPal = app.getPalString(); (app.getPalindrome()).setPalString(appPal); app.setStarted(true); // Start result = app.recursivePalindrome((app.getPalindrome()).getPalString()); // Finish last step in animation (app.getPalindrome()).setResult(result); app.repaint(); System.out.println("The correct result is " + (app.getPalindrome()).getExactResult()); System.out.println("Your result is " + result); System.out.println("Done "); // done JOptionPane.showMessageDialog(null, "Done"); } } }