Adding JApplet into JFrame
I am trying to view a JApplet within a JFrame.
Class: Paint
public void paint(Graphics g) {
g.drawString("hi", 50, 50);
}
public static void main(String args[]) {
JFrame frame = new JFrame("test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
fr开发者_Go百科ame.setJMenuBar(methodThatReturnsJMenuBar());
JPanel panel = new JPanel(new BorderLayout());
frame.add(panel);
JApplet applet = new Paint();
panel.add(applet, BorderLayout.CENTER);
applet.init();
frame.pack();
frame.setVisible(true);
}
The applet shows up in the Window, but there is no background (it's transparent), and when I click on the Menu, the list is covered. How do I make it so that the Menu list isn't covered, and there is a background?
Edit: When I draw a white rectangle, it fixes the background problem, but the Menu list is still covered.
I would gear my GUI creation towards making a JPanel and then use the JPanel as I desire, either in an JApplet or a JFrame. For e.g.,
import java.awt.*;
import javax.swing.*;
public class MyPanel extends JPanel {
private static final Dimension PREF_SIZE = new Dimension(400, 300);
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawString("hi", 50, 50);
}
@Override
public Dimension getPreferredSize() {
return PREF_SIZE;
}
public JMenuBar methodThatReturnsJMenuBar() {
JMenu menu = new JMenu("Menu");
JMenuBar menuBar = new JMenuBar();
menuBar.add(menu);
return menuBar;
}
}
Then to use in an applet:
import javax.swing.JApplet;
public class MyApplet extends JApplet {
public void init() {
try {
javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
createGUI();
}
});
} catch (Exception e) {
System.err.println("createGUI didn't successfully complete");
}
}
private void createGUI() {
getContentPane().add(new MyPanel());
}
}
Or in a JFrame:
import javax.swing.JFrame;
public class MyStandAlone {
private static void createAndShowUI() {
MyPanel myPanel = new MyPanel();
JFrame frame = new JFrame("MyPanel");
frame.getContentPane().add(myPanel);
frame.setJMenuBar(myPanel.methodThatReturnsJMenuBar());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
createAndShowUI();
}
});
}
}
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