java Border/BorderLayout 实现GroupBox

在java中没有找到类似于C++中的groupbox，搜了一下才知道是要用borderlayout和border实现的。

做笔记如下：

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

public class Test5 {
    public static void main(String[] args) {
        SmallFrame sf = new SmallFrame();
        sf.setVisible(true);
    }
}

class SmallFrame extends JFrame {
    Container p;
    JLabel tip = new JLabel("请输入学号：");
    JTextField stuNoText = new JTextField();
    JPanel viewPane = new JPanel();
    JButton ok = new JButton("确定");
    JButton reset = new JButton("重置");
    public SmallFrame() {
        super("按学号查询");
        setBounds(200, 100, 350, 280);
        setResizable(false);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        p = getContentPane();
        p.setLayout(null);
        tip.setBounds(70, 20, 100, 20);
        tip.setForeground(Color.red);
        stuNoText.setBounds(155, 20, 100, 20);
        p.add(tip);
        p.add(stuNoText);
        ok.setBounds(90, 60, 60, 20);
        ok.setForeground(Color.green);
        p.add(ok);
        reset.setBounds(180, 60, 60, 20);
        reset.setForeground(Color.green);
        p.add(reset);
        //关键代码块
        TitledBorder tb = new TitledBorder(BorderFactory.createLineBorder(new Color(255, 0, 0)),"查询结果");
        tb.setTitleColor(Color.blue);
        viewPane.setBorder(tb);
        viewPane.setLayout(null);
        JLabel stuNoLabe = new JLabel("学号：");
        stuNoLabe.setBounds(80, 130, 80, 20);
        stuNoLabe.setForeground(new Color(34, 139, 34));
        p.add(stuNoLabe);
        JTextField stuNoTextf = new JTextField();
        stuNoTextf.setBounds(150, 130, 90, 20);
        p.add(stuNoTextf);
        JLabel stuNameLabe = new JLabel("姓名：");
        stuNameLabe.setBounds(80, 160, 80, 20);
        stuNameLabe.setForeground(new Color(34, 139, 34));
        p.add(stuNameLabe);
        JTextField nameTextf = new JTextField();
        nameTextf.setBounds(150, 160, 90, 20);
        p.add(nameTextf);
        JLabel stuAgeLabe = new JLabel("年龄：");
        stuAgeLabe.setBounds(80, 190, 80, 20);
        stuAgeLabe.setForeground(new Color(34, 139, 34));
        p.add(stuAgeLabe);
        JTextField ageTextf = new JTextField();
        ageTextf.setBounds(150, 190, 90, 20);
        p.add(ageTextf);

        viewPane.add(new JButton("HKJJ"));
        viewPane.setBounds(18, 100, 310, 141);
        p.add(viewPane);
    }
}

上面程序的效果图：