1:先运行一下
2:为什么"code = new JLabel("输入管理员密码");"这个运行起来都是"口口口口口口口口口口口" ,怎么解决,我想模拟windows的各种GUI 窗口,对话框,字幕,等等!//package pack;import javax.swing.*;
import java.util.*;
import java.lang.String.*;
import java.awt.event.*;
import java.awt.*;
import java.lang.*;
import java.io.*;class CodeFrame extends JFrame
{
JLabel code;
JPasswordField codtext;
JPanel panel1;
JPanel panel2;
public CodeFrame(String s)
{
super(s);
Container c = getContentPane();
c.setLayout(new GridLayout(1,2));
setVisible(false);
panel1=new JPanel();
panel2=new JPanel();
code = new JLabel("输入管理员密码");
codtext = new JPasswordField(20);
panel1.add(code);
panel2.add(codtext);
c.add(panel1);
c.add(panel2);
setLocation(350,250);
setSize(300,80);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
setVisible(false);
System.exit(0);
}
});
}
}public class Code //extends JFrame
{
public static void main(String args[]) throws Exception
{
try
{
CodeFrame window = new CodeFrame("銮辰库存管理系统");
String str = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
UIManager.setLookAndFeel(str);
SwingUtilities.updateComponentTreeUI(window);
window.setVisible(true);
}
catch(Exception e)
{
}
}
}
private static void setUIFont(Font font)
{
Enumeration keys = UIManager.getDefaults().keys();
while(keys.hasMoreElements())
{
Object key=keys.nextElement();
Object value=UIManager.get(key);
if(value instanceof javax.swing.plaf.FontUIResource)
UIManager.put(key,font);
}
}
//在主函数中调用方法修改UI的字体
setUIFont(new Font("Dialog",Font.PLAIN,12));
//下面是在主函数中改界面，要放在实例化窗口之前
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch(Exception e)
{
throw new RuntimeException(e);
}