java中对按钮的事件监听_Grit_ICPC的博客_java实现简单按钮事件监听

package awt;
import java.awt.*;
import java.awt.event.*;
public class Monitor implements ActionListener{
	public void actionPerformed(ActionEvent e){
		System.out.println("A button has benn pressed!");
	}
}



package awt;
import java.awt.*;
public class graphy {
	public static void   main(String[] args){
		Frame f = new Frame("Text!");
		Button b = new Button("Bt");
		Monitor hr = new Monitor();
		b.addActionListener(hr);
		f.add(b,BorderLayout.CENTER);
		f.pack();
		f.setVisible(true);
	}
}
package awt;
import java.awt.*;
import java.awt