fistframe.java

java观察者模式的具体代码

package java_observer;

import javax.swing.JFrame;
import java.awt.BorderLayout;
import javax.swing.JLabel;

public class FistFrame extends JFrame implements updateInterface{
    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	BorderLayout borderLayout1 = new BorderLayout();
    JLabel jLabel1 = new JLabel();
    public FistFrame() {
        try {
            jbInit();
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

    private void jbInit() throws Exception {
        getContentPane().setLayout(borderLayout1);
        this.setDefaultCloseOperation(this.EXIT_ON_CLOSE);
        jLabel1.setText("什么懂懂");
        this.getContentPane().add(jLabel1, java.awt.BorderLayout.CENTER);
    }

/*
    public static void main(String[] args) {
        FistFrame ff = new FistFrame();
        ff.setSize(200,200);
        ff.setVisible(true);
        ff.setLocation(300,300);
    }
*/

    public boolean updateJLable(String Message) {
        this.jLabel1.setText(Message);
        return true;
    }
}