callistener.java

这是一个关于java面板的程序样例

package frame;


import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class CalListener implements ActionListener{
	CalUI ui;
	CalModel model;
	public CalListener(CalUI ui,CalModel model) {
		super();
		this.ui = ui;
		this.model=model;
	}

	public void actionPerformed(ActionEvent e) {
		if("0123456789.".indexOf(e.getActionCommand())>=0){
			ui.setTxtNumber(e.getActionCommand());
		}else if("+-*/".indexOf(e.getActionCommand())>=0){
			model.setOp1( ui.getTxtNumber());
			ui.clearTxt();
		}else if("=".indexOf(e.getActionCommand())>=0){
			model.setOp2( ui.getTxtNumber());
			ui.setTxtNumber(model.add());
		}
	}

}