9、JcomboBox下拉框事件监听 JComboBox()的事件监听类ItemListener。....*; 4 public class JComboBoxFrame extends JFrame 5 { 6 private JComboBox cb = new JComboBox();...也可以用如下方法： 1 comboBox = new JComboBox(); 2 comboBox.addItemListener(new ItemListener() { 3
使用ListCellRenderer改变列表外观 JList、JComboBox实现列表框 无论从哪个角度来看， JList 和 JComboBox 都是极其相似的，它们都有一个列表框，只是 JComboBox...简单列表框 使用JList或JComboBox实现简单列表框的步骤： 创建JList或JComboBox对象 JList(final E[] listData):创建JList对象，把listData数组中的每项内容转换成一个列表项展示...extends E> listData):创建JList对象，把listData数组中的每项内容转换成一个列表项展示 JComboBox(E[] items): JComboBox(Vector...JComboBox numScopeSelector = new JComboBox(new NumberComboBoxModel(0.1,1.2,0.1));...采用的都是简单的字符串列表项， 实际上 ， JList 和 JComboBox还可以支持图标列表项，如果在创建 JList 或 JComboBox 时传入图标数组，则创建的 JList 和 JComboBox
javax.swing.ComboBoxModel; import javax.swing.DefaultComboBoxModel; import javax.swing.JButton; import javax.swing.JComboBox...; Container container = getContentPane(); container.setLayout(null); //向下拉列表添加数据 // JComboBox... comboBox = new JComboBox(); // comboBox.addItem("身份证"); // comboBox.addItem("学生证"); //...comboBox.addItem("工作证"); // String string[] = {"1","2","3"}; // JComboBox comboBox = new JComboBox...(string); String string[] = {"身份证","学生证","工作证"}; JComboBox comboBox = new JComboBox
java.awt.event.WindowEvent; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JComboBox...static JDialog dlg; private static Font font, rawFont; private static JPanel panel; private static JComboBox...dlg.setTitle("选择字体"); dlg.setResizable(false); dlg.setLocationRelativeTo(null); comboBoxFont = new JComboBox...(); comboBoxStyle = new JComboBox(); comboBoxSize = new JComboBox(); panel
七、下拉列表(JComboBox) Swing 中通过类JComboBox 实例化下拉列表对象。...JComboBox的构造方法 JComboBox的构造方法有以下几种： JComboBox()：创建一个空的下拉列表框。...JComboBox(Object[] items)：使用指定的项数组创建一个下拉列表框。 JComboBox(Vector items)：使用指定的项向量创建一个下拉列表框。...JComboBox常用成员方法 JComboBox常用成员方法包括： addItem(Object item)：向下拉列表中添加一个选项。...这些方法可以帮助你对JComboBox进行操作和获取信息。
import java.util.Scanner; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JComboBox...method stub console.setText("单选框被点击"); } }); String val[] = {"单选1", "单选2", "单选3"}; JComboBox...jComboBox = new JComboBox(val); centerP.add(jComboBox); jComboBox.addActionListener(new ActionListener
---- 五.JComboBox | 代表Swing下拉列表框 JComboBox有4种构造方法： 构造方法 解释 JComboBox() 使用默认数据模型创建JComboBox。...JComboBox(ComboBoxModel aModel) 创建一个JComboBox，它从现有的ComboBoxModel中获取项目。...JComboBox(Object[] items) 创建一个JComboBox，其中包含指定数组中的元素。 JComboBox(Vector items) 创建一个JComboBox，其中包含指定向量中的元素。 1.使用默认数据模型创建JComboBox。...JComboBox jc =new JComboBox(); jc.setBounds(50,50,80,30);//使用绝对布局，自定义大小 ?
List list2; private String[] arrs2 = {}; private DefaultComboBoxModel model; private JComboBox...comboBox1; private JComboBox comboBox2; private final static String BASEURL=".....i = 0; i < list1.size(); i++){ arrs1[i] = list1.get(i); } comboBox1 = new JComboBox...arrs2[i] = list2.get(i); model.addElement(arrs2[i]); } comboBox2 = new JComboBox...ItemEvent e) { // TODO Auto-generated method stub if(e.getStateChange()==ItemEvent.SELECTED){//选中JComboBox
按钮组件：JButton---普通按钮 JCheckBox---复选框 JRadioButton—单选框 JComboBox –下拉列表框 c) JTextField中常用方法 ...con.add(radio3); h) JComboBox 下拉菜单 i. ...实例化：JComboBox cb = new JComboBox(Object[] item); 1 con.add(cb); i) JPanel类是最简单的容器类可容纳各类基本组件
import java.util.ArrayList; import java.util.Vector; import javax.swing.JButton; import javax.swing.JComboBox... jcb = new JComboBox(); //文本框 JTextField jtf = new JTextField(10); //按钮 JButton jbcx =...javax.swing.ButtonGroup; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JComboBox...0; gbc.gridy = 4; gbl.setConstraints(jladdress, gbc); jp.add(jladdress); //下拉框-第六行 第二列 JComboBox... jc = new JComboBox(); jc.addItem("长沙"); jc.addItem("衡阳"); jc.addItem("郴州"); jc.addItem
java.io.StringWriter; import javax.swing.DefaultComboBoxModel; import javax.swing.JButton; import javax.swing.JComboBox..., 25); panel.add(driverJLabel); String[] driverSelectJLabel = { "com.mysql.cj.jdbc.Driver" }; JComboBox...comboBox = new JComboBox(); comboBox.setModel(new DefaultComboBoxModel(driverSelectJLabel)); comboBox.setBounds..., 25); panel.add(driverJLabel); String[] driverSelectJLabel = { "com.mysql.cj.jdbc.Driver" }; JComboBox...comboBox = new JComboBox(); comboBox.setModel(new DefaultComboBoxModel(driverSelectJLabel)); comboBox.setBounds
javax.swing.ButtonGroup; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JComboBox...图书管理系统\\分类"); File[] file_class = file_Library.listFiles();// 获取 “分类”文件夹下的各个具体分类的文件夹 comBoBox= new JComboBox...getJTabel() { return table_search; } private JButton button_ok; private JButton button_cancel; private JComboBox
.*; public class CalenderTrain extends JFrame implements ActionListener { JComboBox Month = new JComboBox...(); //月份下拉列表框 JComboBox Year = new JComboBox(); //年份下拉列表框 JLabel Year_l = new JLabel(“年份:”); //定义标签 JLabel
mycheckBox[]; 10 JRadioButton myradio[]; 11 ButtonGroup group; //为一组按钮创建相坼的功能 12 JComboBox...add(myradio[i]); 50 } 51 add( new Label("下拉列表")); 52 myComboBox = new JComboBox
对比JComboBox JList从含义上看是一个列表，有点和JComboBox相似。...JComboBox的内容只能用一列显示出来 JList的内容可以多列显示 这就是JList存在的意义 构造器 一个对象数组 String[] words= { "quick", "brown", "hungry
String[] educationLevels = {"High School", "Associate", "Bachelor", "Master", "Doctor"}; JComboBox... educationComboBox = new JComboBox(educationLevels); JButton registerButton = new
video/BV1HK4y1L75a 设计布局 大部分和上一节: https://xuzhiwei.blog.csdn.net/article/details/111470880 的内容一致,新加入的内容有 JcomboBox...JPanel topPanel; private JPanel bottomPanel; private JTextField canadianField; private JComboBox
java.util.Timer; import java.util.TimerTask; import javax.swing.DefaultComboBoxModel; import javax.swing.JComboBox...4782486524987801209L; private String time; private JPanel timePanel; private TimeZone timeZone; private JComboBox...private String DEFAULT_FORMAT = "EEE d MMM, HH:mm:ss"; public WorldTimeFrame() { zoneBox = new JComboBox
import java.util.List; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JComboBox...JCheckBox("睡觉"); jp.add(p); //文本-地址 JLabel sdd = new JLabel("地址："); jp.add(sdd); //下拉框 JComboBox... com = new JComboBox(); jp.add(com); //给下拉框添值 com.addItem("郴州"); com.addItem("上海");
领取专属 10元无门槛券
手把手带您无忧上云
云服务器
ICP备案
对象存储
实时音视频
即时通信 IM
