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UseList.java

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import java.awt.*;

import java.applet.*;

import java.applet.Applet;

public class UseList extends Applet

{

String str1 = new String();

String str2 = new String();

int i1 = 0, i2 = 0;

List l1,l2,l3;

public void init()

{

l1 = new List();

l2 = new List(5);

l3 = new List(5, true);

// 列表添加内容

l1.add("苹果");

l1.add("香蕉");

l1.add("梨");

l2.add("语文");

l2.add("数学");

l2.add("英语");

l2.add("化学");

l3.add("钢笔");

l3.add("铅笔");

l1.select(1);

l3.select(1);

this.add(l1);

this.add(l2);

this.add(l3);

}

public void start()

{

str1 = l1.getItem(2);

i1 = l1.getItemCount();

l2.replaceItem("英语", 2);

str2 = l3.getSelectedItem();

repaint();

}

public void paint(Graphics g)

{

g.drawString("第一个对象的索引为２的元素: " + str1, 40, 100);

g.drawString("第一个对象的元素个数: " + i1, 40, 120);

g.drawString("第三个对象选中的元素为: " + str2, 40, 140);

}

}