吴裕雄--天生自然JAVA图形界面编程学习笔记：列表框JList

import javax.swing.JFrame ;
import javax.swing.JList ;
import java.util.Vector ;
import javax.swing.BorderFactory ;
import javax.swing.ListSelectionModel ;
import javax.swing.JScrollPane ;
import java.awt.Container ;
import java.awt.GridLayout ;
import java.awt.event.WindowAdapter ;
import java.awt.event.WindowEvent ;
class MyList{
    private JFrame frame = new JFrame("Welcome To MLDN") ;
    private Container cont = frame.getContentPane() ;    // 得到窗体容器
    private JList list1 = null ;
    private JList list2 = null ;

    public MyList(){
        this.frame.setLayout(new GridLayout(1,3)) ;    // 定义排版
        String nations[] = {"中国","巴西","美国","韩国","意大利","法国"} ;
        Vector<String> v = new Vector<String>() ;
        v.add("MLDN") ;
        v.add("MLDNJAVA") ;
        v.add("智囊团") ;
        this.list1 = new JList(nations) ;
        this.list2 = new JList(v) ;

        this.list1.setBorder(BorderFactory.createTitledBorder("你喜欢去那个国家旅游？")) ;
        this.list2.setBorder(BorderFactory.createTitledBorder("你喜欢网站？")) ;

        this.list1.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) ;// 多选
        this.list2.setSelectionMode(ListSelectionModel.SINGLE_SELECTION) ;// 单选

        this.cont.add(new JScrollPane(this.list1)) ;
        this.cont.add(this.list2) ;

        this.frame.setSize(330,180) ;
        this.frame.setVisible(true) ;



        this.frame.addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent a){
                System.exit(1) ;
            }
        }) ;
    }

}

public class JListDemo01{
    public static void main(String args[]){
        new MyList() ;
    }
}

import javax.swing.JFrame ;
import javax.swing.JList ;
import java.util.Vector ;
import javax.swing.BorderFactory ;
import javax.swing.ListSelectionModel ;
import javax.swing.JScrollPane ;
import javax.swing.AbstractListModel ;
import java.awt.Container ;
import java.awt.GridLayout ;
import java.awt.event.WindowAdapter ;
import java.awt.event.WindowEvent ;

class MyListModel extends AbstractListModel{
    private String nations[] = {"中国","巴西","美国","韩国","意大利","法国"} ;
    public Object getElementAt(int index){
        if(index<this.nations.length){
            return this.nations[index] ;
        }else{
            return null ;
        }
    }
    public int getSize(){
        return this.nations.length ;
    }
}

class MyList{
    private JFrame frame = new JFrame("Welcome To MLDN") ;
    private Container cont = frame.getContentPane() ;    // 得到窗体容器
    private JList list1 = null ;

    public MyList(){
        this.frame.setLayout(new GridLayout(1,3)) ;    // 定义排版
        String nations[] = {"中国","巴西","美国","韩国","意大利","法国"} ;
        Vector<String> v = new Vector<String>() ;
        v.add("MLDN") ;
        v.add("MLDNJAVA") ;
        v.add("智囊团") ;
        this.list1 = new JList(new MyListModel()) ;

        this.list1.setBorder(BorderFactory.createTitledBorder("你喜欢去那个国家旅游？")) ;

        this.list1.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) ;// 多选

        this.cont.add(new JScrollPane(this.list1)) ;

        this.frame.setSize(330,180) ;
        this.frame.setVisible(true) ;



        this.frame.addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent a){
                System.exit(1) ;
            }
        }) ;
    }

}

public class JListDemo02{
    public static void main(String args[]){
        new MyList() ;
    }
}

import javax.swing.JFrame ;
import javax.swing.JList ;
import java.util.Vector ;
import javax.swing.BorderFactory ;
import javax.swing.ListSelectionModel ;
import javax.swing.JScrollPane ;
import javax.swing.AbstractListModel ;
import java.awt.Container ;
import java.awt.GridLayout ;
import java.awt.event.WindowAdapter ;
import java.awt.event.WindowEvent ;
import javax.swing.event.ListSelectionListener ;
import javax.swing.event.ListSelectionEvent ;

class MyListModel extends AbstractListModel{
	private String nations[] = {"中国","巴西","美国","韩国","意大利","法国"} ;
	public Object getElementAt(int index){
		if(index<this.nations.length){
			return this.nations[index] ;
		}else{
			return null ;
		}
	}
	public int getSize(){
		return this.nations.length ;
	}
}

class MyList implements ListSelectionListener{
	private JFrame frame = new JFrame("Welcome To MLDN") ;
	private Container cont = frame.getContentPane() ;	// 得到窗体容器
	private JList list1 = null ;

	public MyList(){
		this.frame.setLayout(new GridLayout(1,3)) ;	// 定义排版
		String nations[] = {"中国","巴西","美国","韩国","意大利","法国"} ;
		Vector<String> v = new Vector<String>() ;
		v.add("MLDN") ;
		v.add("MLDNJAVA") ;
		v.add("智囊团") ;
		this.list1 = new JList(new MyListModel()) ;

		this.list1.setBorder(BorderFactory.createTitledBorder("你喜欢去那个国家旅游？")) ;

		this.list1.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION) ;// 多选

		this.cont.add(new JScrollPane(this.list1)) ;

		this.frame.setSize(330,180) ;
		this.frame.setVisible(true) ;
		this.list1.addListSelectionListener(this) ;


		this.frame.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent a){
				System.exit(1) ;
			}
		}) ;
	}

	public void valueChanged(ListSelectionEvent e){	// 事件处理
		int temp[] = list1.getSelectedIndices() ;
		System.out.print("选定的内容：") ;
		for(int i=0;i<temp.length;i++){
			System.out.print(list1.getModel().getElementAt(i) + "、") ;
		}
		System.out.println() ;
	}

}

public class JListDemo03{
	public static void main(String args[]){
		new MyList() ;
	}
}