?? example5_1.java
字號:
/* JFrame類的簡單示例*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Example5_1 implements ActionListener
{
public Example5_1()
{
JFrame f = new JFrame("JFrame窗體示例");//JFrame對象實例化
Container contentPane = f.getContentPane();
JButton jbtn = new JButton("打開新窗體");
contentPane.setLayout(new FlowLayout());
contentPane.add(jbtn);
jbtn.addActionListener(this);
f.setSize(200,200);
f.validate();
f.show();
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent we)
{System.exit(0);}
} );
}
public void actionPerformed(ActionEvent e)
{ JFrame newf=new JFrame();
newf.setSize(150,150);
newf.show();
}
public static void main(String[] args)
{ new Example5_1(); }
}
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