?? buttonevent2.java
字號:
//按鈕事件
//ButtonEvent2.java
//<applet code=ButtonEvent2 width=200 height=50>
//</applet>
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.event.*;
public class ButtonEvent2 extends JApplet
{
JButton
button1=new JButton("Press me"),
button2=new JButton("Clear");
JTextField txt=new JTextField(20);
class Button1Listner implements ChangeListener
{
public void stateChanged(ChangeEvent e)
{
txt.setText(txt.getText()+"Press me.");
}
};
class Button2Listner implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
txt.setText("");
}
};
Button1Listner a1=new Button1Listner();
Button2Listner a2=new Button2Listner();
public void init()
{
button1.addChangeListener(a1);
button2.addActionListener(a2);
Container cp=getContentPane();
cp.setLayout(new FlowLayout());
cp.add(button1);
cp.add(button2);
cp.add(txt);
}
};
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