MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;

public class MainClass extends JFrame {
    ColorName colors[] = { new ColorName("Red"), new ColorName("Green"), new ColorName("Blue"),
            new ColorName("Black"), new ColorName("White") };

    public MainClass() {
        super("Table With DefaultCellEditor Example");
        setSize(500, 300);
        setDefaultCloseOperation(EXIT_ON_CLOSE);

        JTable table = new JTable(new AbstractTableModel() {
            ColorName data[] = { colors[0], colors[1], colors[2], colors[3], colors[4], colors[0], colors[1],
                    colors[2], colors[3], colors[4] };

            public int getColumnCount() {
                return 3;
            }

            public int getRowCount() {
                return 10;
            }

            public Object getValueAt(int r, int c) {
                switch (c) {
                case 0:
                    return (r + 1) + ".";
                case 1:
                    return "Some pithy quote #" + r;
                case 2:
                    return data[r];
                }
                return "Bad Column";
            }

            public Class getColumnClass(int c) {
                if (c == 2)
                    return ColorName.class;
                return String.class;
            }

            public boolean isCellEditable(int r, int c) {
                return c == 2;
            }

            public void setValueAt(Object value, int r, int c) {
                data[r] = (ColorName) value;
            }
        });

        table.setDefaultEditor(ColorName.class, new DefaultCellEditor(new JComboBox(colors)));
        table.setDefaultRenderer(ColorName.class, new DefaultTableCellRenderer());
        table.setRowHeight(20);
        getContentPane().add(new JScrollPane(table));
    }

    public static void main(String args[]) {
        MainClass ex = new MainClass();
        ex.setVisible(true);
    }

    public class ColorName {
        String cname;

        public ColorName(String name) {
            cname = name;
        }

        public String toString() {
            return cname;
        }
    }
}