布局设成null，其中的组件都设定位置
import javax.swing.*;
public class LoadDialog extends javax.swing.JDialog {
private JPanel outer;
private JLabel one;
private JLabel three;
private JPasswordField pw3;
private JPasswordField pw2;
private JPasswordField pw1;
private JLabel two;
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
LoadDialog inst = new LoadDialog(null);
inst.setResizable(false);
inst.setLocationRelativeTo(null);
inst.setVisible(true);
}
});
}
public LoadDialog(JFrame frame) {
super(frame);
initGUI();
}
private void initGUI() {
try {
setTitle("修改密码：");
getContentPane().setLayout(null);
{
outer = new JPanel();
getContentPane().add(outer);
outer.setBounds(41, 34, 313, 194);
outer.setBorder(BorderFactory.createTitledBorder("修改信息:"));
outer.setLayout(null);
{
one = new JLabel();
outer.add(one);
one.setText("输入原密码:");
one.setBounds(44, 56, 69, 15);
}
{
two = new JLabel();
outer.add(two);
two.setText("输入新密码:");
two.setBounds(44, 90, 69, 15);
}
{
three = new JLabel();
outer.add(three);
three.setText("重复原密码:");
three.setBounds(44, 126, 69, 15);
}
{
pw1 = new JPasswordField();
outer.add(pw1);
pw1.setText("");
pw1.setBounds(119, 52, 133, 22);
}
{
pw2 = new JPasswordField();
outer.add(pw2);
pw2.setText("");
pw2.setBounds(119, 86, 133, 22);
}
{
pw3 = new JPasswordField();
outer.add(pw3);
pw3.setText("");
pw3.setBounds(119, 122, 133, 22);
}
}
setSize(400, 300);
} catch (Exception e) {
e.printStackTrace();
}
} }