import java.awt.*;
import java.awt.event.*;
public class TestActionEvent2 {
public static void main(String[] args) {
Frame f = new Frame("Test");//这里new出来个Frame对象但是没有调用构造方法;那"Test" 怎么 Button b1 = new Button("start");//没有传到构造方法的里去,就是显示.这里怎么解释
Button b2 = new Button("stop");
Monitor bh = new Monitor();
b1.addActionListener(bh);
b2.addActionListener(bh);
b2.setActionCommand("game over");
f.add(b1,BorderLayout.NORTH);
f.add(b2,BorderLayout.CENTER);
f.pack();
f.setVisible(true);
}
}class Monitor implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.out.println("a button jbeen pressed"+
"the relative info is:\n" + e.getActionCommand());
}
}
Button b1 = new Button("start");
Button b2 = new Button("stop");
Monitor bh = new Monitor();
b1.addActionListener(bh);
b2.addActionListener(bh);
b2.setActionCommand("game over");
f.add(b1,BorderLayout.NORTH);
f.add(b2,BorderLayout.CENTER);
f.pack();
f.setVisible(true);
}
}class Monitor implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.out.println("a button jbeen pressed"+
"the relative info is:\n" + e.getActionCommand());
}
}
import java.awt.event.*;
public class TestActionEvent2 {
public static void main(String[] args) {
Frame f = new Frame("Test");//这里new出来个Frame对象但是没有调用构造方法;那"Test" 怎么 Button b1 = new Button("start");//没有传到构造方法的里去,就是显示.这里怎么解释
Button b2 = new Button("stop");
Monitor bh = new Monitor();
b1.addActionListener(bh);
b2.addActionListener(bh);
b2.setActionCommand("game over");
f.add(b1,BorderLayout.NORTH);
f.add(b2,BorderLayout.CENTER);
f.pack();
f.setVisible(true);
}
}class Monitor implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.out.println("a button jbeen pressed"+
"the relative info is:\n" + e.getActionCommand());
}
}
Button b1 = new Button("start");
Button b2 = new Button("stop");
Monitor bh = new Monitor();
b1.addActionListener(bh);
b2.addActionListener(bh);
b2.setActionCommand("game over");
f.add(b1,BorderLayout.NORTH);
f.add(b2,BorderLayout.CENTER);
f.pack();
f.setVisible(true);
}
}class Monitor implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.out.println("a button jbeen pressed"+
"the relative info is:\n" + e.getActionCommand());
}
}
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