【Java】javax.swing.JList 练习

import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
import javax.swing.JList;
import javax.swing.JTextArea;
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

 class ExMyFrame64 extends JFrame implements MouseListener, ListSelectionListener {

    JList list;
    JTextArea tArea;
    String [] course = {"语文","数学","生物","英语"};
    String [] courseBrief =
        {
            "语文是一门语言的艺术教学课程",    
            "数学是一门数字旅行的交通工具",    
            "生物是一门人与自然的画卷",    
            "English is an ABC's Poem"
        };
    String [] courseTime = {"08:00", "11:00", "14:00" ,"16:00"};
    
    ExMyFrame64(){
        setSize(400,300);
        setTitle("JList单击与双击练习");
        list = new JList(course);
        tArea = new JTextArea("请选择课程，单击显示课程简介，双击显示课程时间");
        setLayout(new BorderLayout());
        
        this.add(list, BorderLayout.NORTH); this.add(tArea,BorderLayout.CENTER);
        
        //list.addActionListener(this); // JList没有addActionListener()方法
        list.addMouseListener(this);
        list.addListSelectionListener(this);
    }
    
    @Override
    public void valueChanged(ListSelectionEvent e) {
        // TODO Auto-generated method stub
        // 单击选择事件
        tArea.setText(courseBrief[list.getSelectedIndex()]);
    }

    @Override
    public void mouseClicked(MouseEvent e) {
        // TODO Auto-generated method stub
        //双击选择事件
        if (e.getClickCount() == 2) {
            tArea.setText(course[list.getSelectedIndex()] + "的开课时间是 " + courseTime[list.getSelectedIndex()]);
        }
    }
    /* 实现了MouseListener接口需要实现抽象方法 */
    @Override
    public void mouseEntered(MouseEvent e) {
        // TODO Auto-generated method stub
    }
    @Override
    public void mouseExited(MouseEvent e){}

    @Override
    public void mousePressed(MouseEvent e) {
        // TODO Auto-generated method stub
    }

    @Override
    public void mouseReleased(MouseEvent e) {
        // TODO Auto-generated method stub
    }

}