SimpleTableModel.java Source code

Introduction

Here is the source code for SimpleTableModel.java

Source

import java.awt.BorderLayout;
import java.awt.Container;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;

class SimpleTableModel extends AbstractTableModel {
    private Object[][] data = {};
    private String[] columnNames = { "ID", "Name", "Gender" };
    private Class[] columnClass = { Integer.class, String.class, String.class };
    private Object[][] rowData = new Object[][] { { new Integer(1), "Tom", "Male" },
            { new Integer(2), "Jack", "Female" } };

    public SimpleTableModel() {
    }

    @Override
    public int getRowCount() {
        return rowData.length;
    }

    @Override
    public int getColumnCount() {
        return columnNames.length;
    }

    @Override
    public String getColumnName(int columnIndex) {
        return columnNames[columnIndex];
    }

    @Override
    public Class getColumnClass(int columnIndex) {
        return columnClass[columnIndex];
    }

    @Override
    public boolean isCellEditable(int rowIndex, int columnIndex) {
        boolean isEditable = true;
        if (columnIndex == 0) {
            isEditable = false; // Make the ID column non-editable
        }
        return isEditable;
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {
        return rowData[rowIndex][columnIndex];
    }

    @Override
    public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
        rowData[rowIndex][columnIndex] = aValue;
    }
}

public class Main extends JFrame {
    public Main() {
        this.setDefaultCloseOperation(EXIT_ON_CLOSE);

        JTable table = new JTable(new SimpleTableModel());

        Container contentPane = this.getContentPane();
        contentPane.add(new JScrollPane(table), BorderLayout.CENTER);
    }

    public static void main(String[] args) {
        Main bf = new Main();
        bf.pack();
        bf.setVisible(true);
    }
}