import java.awt.event.*;public class ButtonHandler implements ActionListener { public void actionPerformed(ActionEvent e) { System.out.println("the button is "+e.getActionCommand()); } }import java.awt.*;public class TestButton { public static void main(String[] args) { Frame f = new Frame ("Test a button"); Button b = new Button("Press on me"); b.addActionListener(new ButtonHandler()); f.add(b,"Center");
{
public void actionPerformed(ActionEvent e)
{
System.out.println("the button is "+e.getActionCommand());
}
}import java.awt.*;public class TestButton
{
public static void main(String[] args)
{
Frame f = new Frame ("Test a button");
Button b = new Button("Press on me");
b.addActionListener(new ButtonHandler()); f.add(b,"Center");
f.pack();
f.setVisible(true);
}
}
javac a.java b.java 你要用的都加上
--------------------怎么改的 我也遇到了这个问题