import javax.swing.JLabel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; public class AppStudent extends JFrame{ private JTextField department_idField; private JTextField department_nameField; private JTextField manager_idField; private JTextField location_idField; private JTable table;
private DefaultTableModel model;
private String[] columns = { \\private List data; private Student tmp; public AppStudent( { data = new ArrayList(; getContentPane(.setLayout(null;
JLabel lblemployee = new JLabel(\lblemployee.setBounds(12, 10, 220, 13; getContentPane(.add(lblemployee; department_idField = new JTextField(; department_idField.setBounds(100, 7, 96, 19;
getContentPane(.add(department_idField; department_idField.setColumns(10;
JLabel lblAge = new JLabel(\lblAge.setBounds(252, 10, 220, 13; getContentPane(.add(lblAge;
department_nameField = new JTextField(; department_nameField.setBounds(365, 7, 96, 19; getContentPane(.add(department_nameField; department_nameField.setColumns(10; JLabel lblStuno = new JLabel(\lblStuno.setBounds(12, 36, 220, 13; getContentPane(.add(lblStuno; manager_idField = new JTextField(; manager_idField.setColumns(10;
manager_idField.setBounds(100, 33, 96, 19; getContentPane(.add(manager_idField; JLabel lblClass = new JLabel(\lblClass.setBounds(252, 36, 220, 13; getContentPane(.add(lblClass; location_idField = new JTextField(; location_idField.setColumns(10;
location_idField.setBounds(365, 33, 96, 19; getContentPane(.add(location_idField; JButton btnAdd = new JButton(\增加\
btnAdd.addActionListener(new ActionListener( {
public void actionPerformed(ActionEvent e { add(; } } ;
btnAdd.setBounds(75, 59, 77, 21; getContentPane(.add(btnAdd; JButton btnDel = new JButton(\删除\
btnDel.addActionListener(new ActionListener( { public void actionPerformed(ActionEvent e { del(; } } ;
btnDel.setBounds(180, 59, 77, 21; getContentPane(.add(btnDel;
JButton btnUpdate = new JButton(\更新\
btnUpdate.addActionListener(new ActionListener( { public void actionPerformed(ActionEvent e { update(; } } ;
btnUpdate.setBounds(280, 59, 77, 21; getContentPane(.add(btnUpdate;
JButton btnFind = new JButton(\查找\
btnFind.addActionListener(new ActionListener( { public void actionPerformed(ActionEvent e { find(; } } ;
btnFind.setBounds(380, 59, 77, 21; getContentPane(.add(btnFind;
model = new DefaultTableModel(columns, 0; table = new JTable(model;
table.addMouseListener(new MouseAdapter( {
public void mouseClicked(MouseEvent e {
int row = table.getSelectedRow(;
department_idField.setText((String table.getValueAt(row, 0; department_nameField.setText((String table.getValueAt(row, 2; manager_idField.setText((String table.getValueAt(row, 3; location_idField.setText((String table.getValueAt(row, 4; tmp = getInput(; } };
JScrollPane scrollPane = new JScrollPane(table; scrollPane.setBounds(12, 100, 571, 248;
getContentPane(.add(scrollPane;
setDefaultCloseOperation(EXIT_ON_CLOSE; setLocationRelativeTo(null; setLocation(350,200; setSize(601, 380; setResizable(false; setVisible(true; }
private Student getInput( { Student stu = new Student(;
stu.department_id= department_idField.getText(; stu.department_name = department_nameField.getText(; stu.manager_id = manager_idField.getText(; stu.location_id = location_idField.getText(; return stu; }
private void add( { data.add(getInput(; showTable(; }
private void del( {
for (int i = 0; i < data.size(; i++ {
if (tmp.equals(data.get(i {