package com.test.swing;import java.awt.Container; import java.awt.Dimension;import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel;public class JCommBoxDemo { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub
JFrame f = new JFrame(); Container c = f.getContentPane(); JPanel p = new JPanel(); JComboBox j = new JComboBox(); j.addItem("男"); j.addItem("女"); j.setSelectedItem("男"); p.add(j); c.add(p); f.setSize(new Dimension(200, 100)); f.setVisible(true); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); }}
import java.awt.Dimension;import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;public class JCommBoxDemo { /**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame f = new JFrame();
Container c = f.getContentPane();
JPanel p = new JPanel();
JComboBox j = new JComboBox();
j.addItem("男");
j.addItem("女");
j.setSelectedItem("男");
p.add(j);
c.add(p);
f.setSize(new Dimension(200, 100));
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); }}