second.java

这是我最得意的一件小作品。它是一个基于C/S模式的网络考试系统

package testsystem;

import java.awt.Color;
import java.awt.Container;
import java.awt.Image;

import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.border.Border;
import java.awt.Rectangle;
import javax.swing.JToggleButton;
import javax.swing.JList;

public class second extends JFrame{

 public second(){
  //获得窗口的容器
  Container con = this.getContentPane();
  //设置容器的布局管理器，当为null表示绝对布局
  con.setLayout(null);


  //文本框对象
  JTextField jtxt = new JTextField();
  //设置当前组件的大小和位置 ,
  //其中前两个参数代表位置，后两个参数代表大小
  jtxt.setBounds(80,20,100,20);
  //将组件加入容器
  con.add(jtxt);

  //标签组件
  JLabel jl = new JLabel();
  //设置标签显示文本
  jl.setText("姓名");

  jl.setBounds(10,20,60,20);
  con.add(jl);
  //产生边框对象
  Border border = BorderFactory.createLineBorder(Color.blue);
  //设置标签组件的边框
  jl.setBorder(border);


  //图片标签
  JLabel jlImage = new JLabel();
  //图片对象
  ImageIcon imgIcon = new ImageIcon("1.jpg");
  //获得当前图片对象对应的图形对象
  Image img = imgIcon.getImage();
  //得到缩放之后的图形对象,100,100表示压缩图像的宽和高
  img = img.getScaledInstance(100, 100, 0);

  //设置标签的图片
  jlImage.setIcon(new ImageIcon(img));
  jlImage.setBounds(10,70,100,100);
  con.add(jlImage);


  //按钮
  JButton jb = new JButton("添加");
  jb.setBounds(10,180,80,20);
  con.add(jb);

  //文本域
  JTextArea jta = new JTextArea();
  jta.setBounds(10,210,100,100);
  con.add(jta);

  //复选框
  JCheckBox jcb = new JCheckBox("体育");
  jcb.setText("体育");
  jcb.setBounds(120,210,100,20);
  con.add(jcb);

  //单选钮
  JRadioButton jrb1 = new JRadioButton("男");
  jrb1.setBounds(120,240,80,20);
  con.add(jrb1);

  JRadioButton jrb2 = new JRadioButton("女");
  jrb2.setBounds(200,240,60,20);
  con.add(jrb2);

  JRadioButton jrb3 = new JRadioButton("李宇春");
  jrb3.setBounds(270,240,100,20);
  con.add(jrb3);

  //按钮组
  ButtonGroup bg = new ButtonGroup();
  bg.add(jrb1);
  bg.add(jrb2);
  bg.add(jrb3);


  //容器组件
  JPanel jp = new JPanel();
  jp.setBounds(120,270,200,200);
  con.add(jp);
  jp.setBorder(border);
  jp.setLayout(null);


  JLabel jlImg = new JLabel(new ImageIcon("1.jpg"));

  //滚动面板
  JScrollPane jsp = new JScrollPane(jlImg);
  jsp.setBounds(330,270,200,200);
  con.add(jsp);


  //下拉框
  JComboBox jcbox = new JComboBox();
  //添加下拉框的选项
  jcbox.addItem("高中");
  jcbox.addItem("大专");
  jcbox.addItem("本科");
  jcbox.setBounds(10,10,100,20);
  jp.add(jcbox);


  this.setSize(600,600);
  this.setTitle("测试");
  this.setVisible(true);

  //设置容器的背景色，改变窗口的显示背景
  //con.setBackground(Color.red);


  //设置窗体位置
  //this.setLocation(100, 100);

  //设置窗体居中,必须放在setVisible之下
  this.setLocationRelativeTo(null);
  //设置窗口大小不可调整
  this.setResizable(false);
  //设置窗口关闭时，程序结束
  this.setDefaultCloseOperation(3);
        try {
            jbInit();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }


 public static void main(String[] args) {
  new second();
 }

    private void jbInit() throws Exception {
        jTextField1.setText("jTextField1");
        jTextField1.setBounds(new Rectangle(216, 113, 221, 91));
        this.getContentPane().add(jTextField1);
        jList1.setBounds(new Rectangle(48, 94, 56, 20));
        this.getContentPane().add(jToggleButton1);
        this.getContentPane().add(jList1);
        jToggleButton1.setText("jToggleButton1");
        jToggleButton1.setBounds(new Rectangle(287, 44, 97, 25));
    }

    JTextField jTextField1 = new JTextField();
    JToggleButton jToggleButton1 = new JToggleButton();
    JList jList1 = new JList();

}