下来框+列表框-2022-12-12

下拉框

package Lesson06;

import javax.swing.*;
import java.awt.*;

public class TestComboboxDemo01 extends JFrame {
    public TestComboboxDemo01(){

        Container container = this.getContentPane();
        JComboBox status = new JComboBox();
        status.addItem(null);
        status.addItem("正在上映");
        status.addItem("已下架");
        status.addItem("正在热映");

        container.add(status);


        this.setVisible(true);
        this.setBounds(100,100,500,350);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestComboboxDemo01();
    }
}

列表框

package Lesson06;

import javax.swing.*;
import java.awt.*;
import java.util.Vector;

public class TestComboboxDemo02 extends JFrame {
    public TestComboboxDemo02(){

        Container container = this.getContentPane();

        //生成列表的内容,静态的数据
        //String[] contents = {"1","2","3"};

        //动态数据
        Vector contents = new Vector();
        //列表中需要放入内容
        JList jList = new JList(contents);

        contents.add("zhangsn");
        contents.add("lis");
        contents.add("wangwu");

        container.add(jList);

        this.setVisible(true);
        this.setBounds(100,100,500,350);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new TestComboboxDemo02();
    }
}