本文介绍了将 JFrame 添加到 JApplet的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我可以将基于 JFrame 的程序添加到 JApplet 吗?当我尝试这样做时,我该怎么做:
Can I add program based on JFrame to JApplet ? How can I do that, when I try to do it like:
public class Test extends JApplet{
public void init(){
JFrame frame=new JFrame(300,400);
add(frame);
frame.setVisible(true);
}
当我尝试使用 appletviewer 时出现错误.有人可以帮我吗?
I got an error when i try to use appletviewer. Can anyone help me ?
推荐答案
您不能向小程序添加框架,但可以向框架添加小程序:
You can't add a frame to an applet, but you can add an applet to a frame:
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
public class AppletBasic extends JApplet
{
/**
* Create the GUI. For thread safety, this method should
* be invoked from the event-dispatching thread.
*/
private void createGUI()
{
JLabel appletLabel = new JLabel( "I'm a Swing Applet" );
appletLabel.setHorizontalAlignment( JLabel.CENTER );
appletLabel.setFont(new Font("Serif", Font.PLAIN, 36));
add( appletLabel );
setSize(400, 200);
}
@Override
public void init()
{
try
{
SwingUtilities.invokeAndWait(new Runnable()
{
public void run()
{
createGUI();
}
});
}
catch (Exception e)
{
System.err.println("createGUI didn't successfully complete: " + e);
}
}
public static void main(String[] args)
{
JApplet applet = new AppletBasic();
applet.init();
JFrame frame = new JFrame("Applet in Frame");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add( applet );
frame.pack();
frame.setLocationRelativeTo( null );
frame.setVisible( true );
applet.start();
}
}
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