课程格子java课程设计

//package 课程表; //wy 选择学校专业 import java.awt.BorderLayout; import java.awt.Container; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.util.HashMap; import java.util.Map; import java.util.Vector; import javax.swing.DefaultComboBoxModel; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; public class Select extends JFrame implements ItemListener { private static final long serialVersionUID = 1L; private JComboBox college; private JComboBox major; private Map<Integer, Vector<String>> map = new HashMap<Integer, Vector<String>>(); public Select() { Vector<String> collegeItems = new Vector<String>(); collegeItems.add("安徽大学"); collegeItems.add("合肥工业大学"); collegeItems.add("中国科技大学"); college = new JComboBox(collegeItems); college.addItemListener(this); //安大 Vector<String> vector0 = new Vector<String>(); vector0.add("数学学院"); vector0.add("物理学院"); vector0.add("计算机科学与技术学院"); vector0.add("英语学院"); vector0.add("化学学院"); vector0.add("商学学院"); vector0.add("文学院"); vector0.add("历史学院"); vector0.add("艺术学院"); map.put(0, vector0); //工大 Vector<String> vector1 = new Vector<String>(); vector1.add("数学学院"); vector1.add("物理学院"); vector1.add("计算机学院"); vector1.add("英语学院"); vector1.add("化学学院"); vector1.add("商学学院"); vector1.add("文学院"); vector1.add("历史学院"); vector1.add("艺术学院"); map.put(1, vector1); //科大 Vector<String> vector2 = new Vector<String>(); vector2.add("数学学院"); vector2.add("物理学院"); vector2.add("计算机学院"); vector2.add("英语学院"); vector2.add("化学学院"); vector2.add("商学学院"); vector2.add("文学院"); vector2.add("历史学院"); vector2.add("艺术学院"); map.put(2, vector2); major = new JComboBox(new DefaultComboBoxModel(map.get(0))); major.addItemListener(this); JFrame frame=new JFrame(); this.setContentPane(new Mp()); JPanel panel = new JPanel(); panel.add(college); panel.add(major); this.add(panel, BorderLayout.NORTH); this.setTitle("课程格子欢迎您"); this.setSize(500,500); this.setVisible(true); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JButton bu=new JButton("登录"); bu.setBounds(100,200,70,30); panel.add(bu); bu.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e){ final String s1=(String)college.getSelectedItem(); final String s2=(String)major.getSelectedItem(); Login l=new Login(s1,s2); } });//监听 ///// }//Select 构造方法结束 //消息以弹框形式出来，进行确定 public void itemStateChanged(ItemEvent e) { if(e.getStateChange() == ItemEvent.SELECTED) { if(e.getSource() == college) { int index = college.getSelectedIndex(); major.setModel(new DefaultComboBoxModel(map.get(index))); } //if else if(e.getSource() == major) { JOptionPane.showMessageDialog(this, "你选择的是：" + college.getSelectedItem() + "大学的" + major.getSelectedItem() + "专业！"); } //if }// if }//itemStateChanged public class Mp extends JPanel { public void paintComponent(Graphics g) { Graphics2D g2 = (Graphics2D) g; super.paintComponent(g); Image img = Toolkit.getDefaultToolkit().getImage( "./src/1.jpg"); g2.drawImage(img, 0, 0, this.getWidth(), this.getHeight(), this); } } public static void main(String[] args) { Select select=new Select(); } }