Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;

public class Main {
    public static void main(String[] argv) {
        DefaultTableModel model = new DefaultTableModel() {
            public Class getColumnClass(int mColIndex) {
                int rowIndex = 0;
                Object o = getValueAt(rowIndex, mColIndex);
                if (o == null) {
                    return Object.class;
                } else {
                    return o.getClass();
                }
            }
        };
        JTable table = new JTable(model);
        model.addColumn("Col1", new Object[] { Color.red });
        model.addRow(new Object[] { Color.green });
        model.addRow(new Object[] { Color.blue });

        table.setDefaultRenderer(Color.class, new ColorTableCellRenderer());

        JFrame f = new JFrame();
        f.setSize(300, 300);
        f.add(new JScrollPane(table));
        f.setVisible(true);
    }
}

class ColorTableCellRenderer extends JLabel implements TableCellRenderer {
    Color curColor;

    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
            int rowIndex, int vColIndex) {
        if (curColor instanceof Color) {
            curColor = (Color) value;
        } else {
            curColor = table.getBackground();
        }
        return this;
    }

    public void paint(Graphics g) {
        g.setColor(curColor);
        g.fillRect(0, 0, getWidth() - 1, getHeight() - 1);
    }
}