A) Create a JApplet that asks a user to enter a password into a JTextField and t

Question

A) Create a JApplet that asks a user to enter a password into a JTextField and to then press Enter. Compare the password to Rosebud; if it matches exactly, display "Access Granted". If not, display "Access Denied". Save the file as JPasswordA.java

B) Modify the password applet in Exercise A to ignore difference in case between the typed password and Rosebud. Save the file as JPasswordB.java.

C) Modify the password applet in Exercise 2b to compare the password to a list of five valid passwords: Rosebud, Redrum, Jason, Surrender, or Dorothy. Save the file as JPasswordC.java.

Explanation / Answer

/*
Create a Swing applet
that asks a user to enter a password XXXXX a JTextField and to then press [Enter].
Compare the password XXXXX "Rosebud"; if it matches, display "Access Granted";
if not, display "Access Denied".

@author Karyn Choi
@version 1.01
*/

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

public class JPasswordA extends JApplet implements ActionListener
{
    Container PW = getContentPane();
    JLabel password = new JLabel("Please enter the password");
    JTextField input = new JTextField(7);
    JButton enter = new JButton("Enter");

    public void start()
    {
       PW.add(password);
       PW.add(input);
       PW.add(enter);
       PW.setLayout(new FlowLayout());
       enter.addActionListener(this);
    }

    public void actionPerformed(ActionEvent e)
    {
       String pass1 = input.getText();
       String pass2 = "Rosebud";
       if(pass1.equalsIgnoreCase(pass2))
       {
          JOptionPane.showMessageDialog(null, "Access Granted :/)");
       }
          else
          {
             JOptionPane.showMessageDialog(null, "Access Denied :/(");
          }
    }
}

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