// Project: Swing
// Module: swingcontrols
// Source code file: MyFrame.java

// Show how to create a simple Swing
// frame with some controls.
// Look up these controls in the
// Java Class Library

import javax.swing.*;
public class MyFrame extends JFrame {

    // Declare and instantiate controls.
    private JTextField textField =
            new JTextField( );
    private JButton button =
            new JButton("Push Me");
    private JRadioButton radioButton =
            new JRadioButton("Radio Button Text" );
    private JCheckBox checkBox =
            new JCheckBox("Check Box Text" );
    private JComboBox<String> comboBox =
            new JComboBox<String>( );
    private JPanel contentPanel =
            new JPanel( );

    // The main method creates the frame.
    public static void main(String[] args) {
        new MyFrame( );
    }

    public MyFrame( ) {

        // Set text in title bar.
        super("SwingControls Example");

        // Don't use layout manager
        contentPanel.setLayout(null);

        // Add textfield to panel
        textField.setLocation(25, 25);
        textField.setSize(150, 25);
        contentPanel.add(textField);

        // Add button to panel
        button.setLocation(25, 75);
        button.setSize(150, 25);
        contentPanel.add(button);

        // Add radiobutton to panel
        radioButton.setLocation(25, 125);
        radioButton.setSize(150, 25);
        contentPanel.add(radioButton);

        // Add checkbox to panel
        checkBox.setLocation(25, 175);
        checkBox.setSize(150, 25);
        contentPanel.add(checkBox);

        // Add combobox (dropdown menu) to panel.
        comboBox.setLocation(25, 225);
        comboBox.setSize(150, 25);
        contentPanel.add(comboBox);

        // Add some items to the combobox.
        comboBox.addItem("Chicago");
        comboBox.addItem("Joliet");
        comboBox.addItem("Springfield");

        // Set the panel to be used to display
        // controls on the frame.
        this.setContentPane(contentPanel);

        // Set width of frame to 400 pixels and
        // height to 500 pixels.
        this.setSize(400, 500);

        // Make frame visible.
        this.setVisible(true);
    }
}