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JTable error: I'm trying to display the selected row values from a JTable in the textfield but

Time：11-28

JTable error: I'm trying to display the selected row values from a JTable in the textfield but I keep getting this error, I honestly can't trace it.

This is the code: package Banner;

import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.JScrollPane;
import javax.swing.JLabel;
import javax.swing.JOptionPane;

import java.awt.Font;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.JRadioButton;
import javax.swing.JComboBox;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.awt.event.ActionEvent;
import java.awt.Choice;
import javax.swing.ButtonGroup;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class ModifyUserInfo {

    private JFrame ModifyLbl;
    private JTable table;
    private JTextField IDField;
    private JTextField nameField;
    private JTextField EmailField;
    private JTextField MobileField;
    private JTextField PasswordtextField;
    private final ButtonGroup buttonGroup = new ButtonGroup();
    private JRadioButton StudentRadioBtn;
    private JRadioButton InstructorRadioBtn;
    private JComboBox MajorBox;
    
    

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    ModifyUserInfo window = new ModifyUserInfo();
                    window.ModifyLbl.setVisible(true);
                    
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the application.
     */
    public ModifyUserInfo() {
        initialize();
        showUser();
    }
    
    public ArrayList<User> userList()
    {
        ArrayList<User> usersList = new ArrayList<>();

        try {
            Connection con = con();
            
            String query1 = "select * from userslist;";
            Statement st;
            
            st = con.createStatement();
            ResultSet rs = st.executeQuery(query1);
            User user;
            while(rs.next()) {
                user = new User(rs.getInt("ID"), rs.getString("Full Name"), rs.getString("User Type"), rs.getString("Major"), rs.getString("Personal Email"), rs.getString("Mobile"), rs.getString("Password"));
                usersList.add(user);
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return usersList;

    }
    
    public void showUser()
    {
        ArrayList<User> list = userList();
        DefaultTableModel model = (DefaultTableModel) table.getModel();
        Object [] row = new Object[7];
        
        for(int i = 0; i<list.size(); i  ) {
            row[0] = list.get(i).getID();
            row[1] = list.get(i).getFullName();
            row[2] = list.get(i).getUserType();
            row[3] = list.get(i).getMajor();
            row[4] = list.get(i).getEmail();
            row[5] = list.get(i).getMobile();
            row[6] = list.get(i).getPassword();
            
            model.addRow(row);
            
        }
    }

    /**
     * Initialize the contents of the frame.
     */
    /**
     * 
     */
    private void initialize() {
        ModifyLbl = new JFrame();
        ModifyLbl.addWindowListener(new WindowAdapter() {
            @Override
            public void windowOpened(WindowEvent e) {
                
            }
        });
        ModifyLbl.setTitle("Modify User Info");
        ModifyLbl.setBounds(100, 100, 998, 617);
        ModifyLbl.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        ModifyLbl.getContentPane().setLayout(null);
        
        JScrollPane scrollPane = new JScrollPane();
        scrollPane.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
    
                
            }
        });
        scrollPane.setBounds(313, 10, 661, 560);
        ModifyLbl.getContentPane().add(scrollPane);
        
        table = new JTable();
        table.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                int i = table.getSelectedRow();
                TableModel model = table.getModel();
                
                IDField.setText(model.getValueAt(i, 1).toString());     
                nameField.setText(model.getValueAt(i, 2).toString());
                PasswordtextField.setText(model.getValueAt(i, 7).toString());
                String usertype = model.getValueAt(i, 3).toString();
                if(usertype.equals("Student"))
                {
                    StudentRadioBtn.setSelected(true);
                }
                else
                {
                    InstructorRadioBtn.setSelected(true);
                }
                
                String major = model.getValueAt(i, 4).toString();
                switch (major)
                {
                case "Select":
                    MajorBox.setSelectedIndex(0);
                    break;
                    
                case "ECCE": 
                    MajorBox.setSelectedIndex(1);
                    break;
                    
                case "MEEN": 
                    MajorBox.setSelectedIndex(2);
                    break;
                    
                case "ISYE": 
                    MajorBox.setSelectedIndex(3);
                    break;
                    
                case "CHEG": 
                    MajorBox.setSelectedIndex(4);
                    break;
                    
                case "GERN": 
                    MajorBox.setSelectedIndex(5);
                    break;
                }
                
                
                

                EmailField.setText(model.getValueAt(i, 5).toString());
                MobileField.setText(model.getValueAt(i, 6).toString());
                
                
                
            }
        });
        table.setModel(new DefaultTableModel(
            new Object[][] {
            },
            new String[] {
                "ID", "Full Name", "UserType", "Major", "Personal Email", "Mobile", "Password"
            }
        ));
        table.getColumnModel().getColumn(4).setPreferredWidth(105);
        scrollPane.setViewportView(table);
        
        JLabel TitleLabel = new JLabel("Modify User Information");
        TitleLabel.setFont(new Font("Tahoma", Font.PLAIN, 14));
        TitleLabel.setBounds(10, 10, 217, 29);
        ModifyLbl.getContentPane().add(TitleLabel);
        
        JLabel IDLabel = new JLabel("Identification Number:");
        IDLabel.setFont(new Font("Tahoma", Font.PLAIN, 12));
        IDLabel.setBounds(20, 49, 133, 13);
        ModifyLbl.getContentPane().add(IDLabel);
        
        IDField = new JTextField();
        IDField.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                
            }
        });
        IDField.setBounds(161, 47, 125, 19);
        ModifyLbl.getContentPane().add(IDField);
        IDField.setColumns(10);
        
        JLabel UserNameLabel = new JLabel("Full Name:");
        UserNameLabel.setFont(new Font("Tahoma", Font.PLAIN, 12));
        UserNameLabel.setBounds(20, 88, 133, 13);
        ModifyLbl.getContentPane().add(UserNameLabel);
        
        nameField = new JTextField();
        nameField.setColumns(10);
        nameField.setBounds(161, 86, 125, 19);
        ModifyLbl.getContentPane().add(nameField);
        
        JLabel UserTypeLabel = new JLabel("Personal Email:");
        UserTypeLabel.setFont(new Font("Tahoma", Font.PLAIN, 12));
        UserTypeLabel.setBounds(20, 319, 133, 13);
        ModifyLbl.getContentPane().add(UserTypeLabel);
        
        StudentRadioBtn = new JRadioButton("Student");
        buttonGroup.add(StudentRadioBtn);
        StudentRadioBtn.setBounds(20, 191, 103, 21);
        ModifyLbl.getContentPane().add(StudentRadioBtn);
        
        InstructorRadioBtn = new JRadioButton("Instructor");
        buttonGroup.add(InstructorRadioBtn);
        InstructorRadioBtn.setBounds(183, 191, 103, 21);
        ModifyLbl.getContentPane().add(InstructorRadioBtn);
        
        JLabel MajorLabel = new JLabel("Major:");
        MajorLabel.setFont(new Font("Tahoma", Font.PLAIN, 12));
        MajorLabel.setBounds(20, 245, 133, 13);
        ModifyLbl.getContentPane().add(MajorLabel);
        
        MajorBox = new JComboBox();
        MajorBox.setModel(new DefaultComboBoxModel(new String[] {"Select", "ECCE", "MEEN", "ISYE", "CHEG", "GERN"}));
        MajorBox.setBounds(163, 242, 123, 21);
        ModifyLbl.getContentPane().add(MajorBox);
        
        JLabel UserTypeLabel_1 = new JLabel("Select User Type:");
        UserTypeLabel_1.setFont(new Font("Tahoma", Font.PLAIN, 12));
        UserTypeLabel_1.setBounds(20, 166, 133, 13);
        ModifyLbl.getContentPane().add(UserTypeLabel_1);
        
        EmailField = new JTextField();
        EmailField.setColumns(10);
        EmailField.setBounds(161, 317, 125, 19);
        ModifyLbl.getContentPane().add(EmailField);
        
        MobileField = new JTextField();
        MobileField.setColumns(10);
        MobileField.setBounds(161, 359, 125, 19);
        ModifyLbl.getContentPane().add(MobileField);
        
        JLabel lblMobileNumber = new JLabel("Mobile Number:");
        lblMobileNumber.setFont(new Font("Tahoma", Font.PLAIN, 12));
        lblMobileNumber.setBounds(20, 361, 133, 13);
        ModifyLbl.getContentPane().add(lblMobileNumber);
        
        JLabel lblPassword = new JLabel("Password");
        lblPassword.setFont(new Font("Tahoma", Font.PLAIN, 12));
        lblPassword.setBounds(20, 127, 133, 13);
        ModifyLbl.getContentPane().add(lblPassword);
        
        PasswordtextField = new JTextField();
        PasswordtextField.setColumns(10);
        PasswordtextField.setBounds(161, 125, 125, 19);
        ModifyLbl.getContentPane().add(PasswordtextField);
        
        JLabel contactlbl = new JLabel("Contact Information");
        contactlbl.setFont(new Font("Tahoma", Font.PLAIN, 12));
        contactlbl.setBounds(10, 284, 133, 13);
        ModifyLbl.getContentPane().add(contactlbl);
        
        JButton SaveBtn = new JButton("Save");
        SaveBtn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {

                try {
                    Connection con = con();
                    
                    String query = "insert into userslist values (?, ?, ?, ?, ? ,? ,?)";
                    PreparedStatement pSt = con.prepareStatement(query);
                    pSt.setString(1, IDField.getText());
                    pSt.setString(2, nameField.getText());
                    
                    if(StudentRadioBtn.isSelected())
                        pSt.setString(3, "Student");
                    else if(InstructorRadioBtn.isSelected())
                        pSt.setString(3, "Instructor");
                    
                    String major = MajorBox.getSelectedItem().toString();
                    pSt.setString(4, major);
                    
                    pSt.setString(5, EmailField.getText());
                    pSt.setString(6, MobileField.getText());
                    pSt.setString(7, PasswordtextField.getText());
                    pSt.executeUpdate();
                    
                    DefaultTableModel model = (DefaultTableModel) table.getModel();
                    model.setRowCount(0);
                    showUser();
                
                    JOptionPane.showMessageDialog(null, "Registered Successfully!");
                    
                } catch (Exception e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }
                
            }
        });
        SaveBtn.setBounds(153, 477, 133, 40);
        ModifyLbl.getContentPane().add(SaveBtn);
        
        JButton EditBtn = new JButton("Edit");
        EditBtn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                
                IDField.setText("");        
                nameField.setText("");
                PasswordtextField.setText("");
                buttonGroup.clearSelection();
                MajorBox.setSelectedIndex(0);
                EmailField.setText("");
                MobileField.setText("");

                
            }
        });
        EditBtn.setBounds(153, 427, 133, 40);
        ModifyLbl.getContentPane().add(EditBtn);
        
        JButton ResetBtn_1 = new JButton("Reset");
        ResetBtn_1.setBounds(10, 427, 133, 40);
        ModifyLbl.getContentPane().add(ResetBtn_1);
        
        JButton DeleteBtn = new JButton("Delete");
        DeleteBtn.setBounds(10, 477, 133, 40);
        ModifyLbl.getContentPane().add(DeleteBtn);
    }
    
    static Connection con()
    {
        try {

            Class.forName("com.mysql.cj.jdbc.Driver");
              Connection c = DriverManager.getConnection("jdbc:mysql://localhost:3306/usersdatabase", "root", "fatima2002");
              return c;
              
        }
        catch(Exception e)
        {
            System.out.println("Connection Failed"  e);
        }
        return null;
    }
}

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 7 >= 7
    at java.base/java.util.Vector.elementAt(Vector.java:466)
    at java.desktop/javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:661)
    at Banner.ModifyUserInfo$4.mouseClicked(ModifyUserInfo.java:206)
    at java.desktop/java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:278)
    at java.desktop/java.awt.Component.processMouseEvent(Component.java:6620)
    at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
    at java.desktop/java.awt.Component.processEvent(Component.java:6382)
    at java.desktop/java.awt.Container.processEvent(Container.java:2264)
    at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4993)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2322)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4825)
    at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4934)
    at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4572)
    at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4504)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2308)
    at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2773)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4825)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 7 >= 7
    at java.base/java.util.Vector.elementAt(Vector.java:466)
    at java.desktop/javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:661)
    at Banner.ModifyUserInfo$4.mouseClicked(ModifyUserInfo.java:206)
    at java.desktop/java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:278)
    at java.desktop/java.awt.Component.processMouseEvent(Component.java:6620)
    at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
    at java.desktop/java.awt.Component.processEvent(Component.java:6382)
    at java.desktop/java.awt.Container.processEvent(Container.java:2264)
    at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4993)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2322)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4825)
    at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4934)
    at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4572)
    at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4504)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2308)
    at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2773)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4825)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

And this is what happens when I select a row from the JTable

Image

Please help it's frustrating

CodePudding user response：

The error says that getValueAt() is using an index that is out of bounds. Remember that indexes start at 0.

You have 7 columns in your table (I think, looking at the picture), that would be indexes 0 - 6. But you have this in your code:

PasswordtextField.setText(model.getValueAt(i, 7).toString());

I believe all of your indexes are off by 1 because you are starting at 1 rather than 0.

Page link：https//www.codepudding.com/Mobile/207311.html

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