Pasteable code for CS 2212 - Lab 4.

App.java

package ca.uwo.csd.cs2212.USERNAME;

import javax.swing.SwingUtilities;

public class App {

  public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
      @Override
      public void run() {
        MainWindow window = new MainWindow();
        window.setVisible(true);
      }
    });
  }
}

MainWindow1.java

package ca.uwo.csd.cs2212.USERNAME;

import javax.swing.JFrame;

public class MainWindow extends JFrame {

  public MainWindow() {
    this.initUI();
  }

  private void initUI() {
    this.setTitle("CS 2212 - Lab 4");
    this.setSize(800, 200);
    this.setLocationRelativeTo(null);
    this.setDefaultCloseOperation(EXIT_ON_CLOSE);  
  }

}

MainWindow2.java

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import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.KeyEvent;
import javax.swing.JMenu; 
import javax.swing.JMenuBar; 
import javax.swing.JMenuItem; 

public class MainWindow extends JFrame {

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  private void initUI() {
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    this.setJMenuBar(this.createMenubar());
  }

  private JMenuBar createMenubar() {

    JMenuBar menubar = new JMenuBar();

    JMenu mnuFile = new JMenu("File");
    mnuFile.setMnemonic(KeyEvent.VK_F);

    JMenuItem mniFileExit = new JMenuItem("Exit");
    mniFileExit.setMnemonic(KeyEvent.VK_E);
    mniFileExit.setToolTipText("Exit application");
    mniFileExit.addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent event) {
        System.exit(0);
      }
    });

    mnuFile.add(mniFileExit);
    menubar.add(mnuFile);

    return menubar;
  }
}

MainWindow3.java

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import java.awt.Dimension;
import javax.swing.JPanel; 
import javax.swing.JLabel; 
import javax.swing.JTextField; 
import javax.swing.JButton; 
import javax.swing.ButtonGroup; 
import javax.swing.JRadioButton; 

public class MainWindow extends JFrame {

  private JTextField txtName;
  private JLabel lblGreeting;
  private JRadioButton radBachelors;
  private JRadioButton radMasters;
  private JRadioButton radPhd;

  public MainWindow() {
    this.initUI();
  }

  private void initUI() {
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    this.add(this.createForm());
  }

  private JPanel createForm() {

    JPanel panel = new JPanel();
    JLabel lblName = new JLabel("Name:");
    JLabel lblDegree = new JLabel("Degree:");

    txtName = new JTextField();
    txtName.setPreferredSize(new Dimension(75,25));

    radBachelors = new JRadioButton("BSc");
    radMasters = new JRadioButton("MSc");
    radPhd = new JRadioButton("PhD");

    ButtonGroup grpDegree = new ButtonGroup();
    grpDegree.add(this.radBachelors);
    grpDegree.add(this.radMasters);
    grpDegree.add(this.radPhd);

    lblGreeting = new JLabel();

    JButton btnGreet = new JButton("Greet Me");

    btnGreet.addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent event) {

        String msg = "Hello " + txtName.getText() + ", you are working on ";

        if (radBachelors.isSelected())
          msg += "your BSc.";
        else if (radMasters.isSelected())
          msg += "your MSc.";
        else if (radPhd.isSelected())
          msg += "your PhD.";
        else
          msg += "absolutely nothing.";

        lblGreeting.setText(msg);
      }
    });

    panel.add(lblName);
    panel.add(txtName);
    panel.add(lblDegree);
    panel.add(radBachelors);
    panel.add(radMasters);
    panel.add(radPhd);
    panel.add(btnGreet);
    panel.add(lblGreeting);
    
    return panel;
  }
}

MainWindow4.java

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import java.awt.Color; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.KeyEvent; 
import javax.swing.GroupLayout;

public class MainWindow extends JFrame {

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  private JPanel createForm() {

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    .

    GroupLayout layout = new GroupLayout(panel); 

    layout.setAutoCreateGaps(true);
    layout.setAutoCreateContainerGaps(true);

    layout.setHorizontalGroup(
      layout.createSequentialGroup()
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
          .addGroup(layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
              .addComponent(lblName)
              .addComponent(lblDegree)
            )
            .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
              .addComponent(txtName)
              .addGroup(layout.createSequentialGroup()
                .addComponent(radBachelors)
                .addComponent(radMasters)
                .addComponent(radPhd)
              )
            )
          )
          .addComponent(lblGreeting)
        )
        .addComponent(btnGreet)
    );

    layout.setVerticalGroup(
      layout.createSequentialGroup()
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
          .addComponent(lblName)
          .addComponent(txtName))
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
          .addComponent(lblDegree)
          .addComponent(radBachelors)
          .addComponent(radMasters)
          .addComponent(radPhd))
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
          .addComponent(lblGreeting)
          .addComponent(btnGreet))
    );

    // Replace all the panel.add(...) statements with the following statement
    panel.setLayout(layout);

    return panel;
  }
}

MainWindow5.java

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import java.awt.Color; 
import java.awt.BorderLayout;

public class MainWindow extends JFrame {

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  private void initUI() {
    
    // Replace the line "this.add(this.createForm());" with the following:

    JPanel pnlWest = new JPanel();
    pnlWest.setBackground(Color.BLUE);
    pnlWest.setPreferredSize(new Dimension(100,200));

    JPanel pnlEast = new JPanel();
    pnlEast.setBackground(Color.GREEN);
    pnlEast.setPreferredSize(new Dimension(100,200));

    JPanel pnlNorth = new JPanel();
    pnlNorth.setBackground(Color.ORANGE);
    pnlNorth.setPreferredSize(new Dimension(300,25));

    JPanel pnlSouth = new JPanel();
    pnlSouth.setBackground(Color.RED);
    pnlSouth.setPreferredSize(new Dimension(300,25));

    this.setLayout(new BorderLayout());
  
    this.add(this.createForm(), BorderLayout.CENTER);
    this.add(pnlEast, BorderLayout.EAST);
    this.add(pnlWest, BorderLayout.WEST);
    this.add(pnlNorth, BorderLayout.NORTH);
    this.add(pnlSouth, BorderLayout.SOUTH);
  }
}

MainWindow6.java

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import javax.swing.ImageIcon;
import javax.imageio.ImageIO;
import java.io.InputStream;

public class MainWindow extends JFrame {

  private final String ICON_EXIT = "exit.png";

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  private JMenuBar createMenubar() {

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    JMenuItem mniFileExit = new JMenuItem("Exit", loadIcon(ICON_EXIT));
    
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  }

  private ImageIcon loadIcon(String filename) {
  
    try {
      InputStream in = MainWindow.class.getClassLoader().getResourceAsStream(filename);
      return new ImageIcon(ImageIO.read(in));
    }
    catch (Exception ex) {
      return null;
    }
  }

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}