JTable Zelle gezielt einfärben

/**
 * 
 */
package de.tutorials;

import java.awt.Color;
import java.awt.Component;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

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

/**
 * @author Administrator
 * 
 */
public class JTableColorerExample extends JFrame {

	private JTable table;

	private int colorClm = -1, colorRow = -1;

	private static String[] header = { "Header 1", "Header 2", "Header 3" };

	private static Object[][] data = { { "A", "B", "C" }, { "D", "E", "F" },
			{ "G", "H", "I" } };

	public JTableColorerExample() {
		super("JTableColorerExample");
		setDefaultCloseOperation(EXIT_ON_CLOSE);

		table = new JTable(data, header);
		table.addMouseListener(new MouseAdapter() {
			public void mousePressed(MouseEvent evt) {
				Point p = evt.getPoint();
				colorRow = table.rowAtPoint(p);
				colorClm = table.columnAtPoint(p);
			}
		});
		table.setDefaultRenderer(Object.class, new DefaultTableCellRenderer() {
			@Override
			public Component getTableCellRendererComponent(JTable table,
					Object value, boolean isSelected, boolean hasFocus,
					int row, int column) {

				Component c = super.getTableCellRendererComponent(table, value,
						isSelected, hasFocus, row, column);

				if (row == colorRow && column == colorClm) {
					setBackground(Color.RED);
				} else {
					setBackground(Color.WHITE);
				}
				return this;
			}
		});

		add(new JScrollPane(table) {
			{
				setPreferredSize(table.getPreferredSize());
			}
		});

		pack();
		setVisible(true);
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new JTableColorerExample();
	}

}

import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.*;
import java.awt.*;
import java.util.StringTokenizer;
 
class ColoredTableCellRenderer extends DefaultTableCellRenderer
{
int rowDays;
int actRow;
int rendRow;
int actCol;
 
Color lightBlue = new Color(206,226,255);
Color darkBlue = new Color(114,151,201);
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus,
int row, int col) {
Component c = super.getTableCellRendererComponent(table, value,
isSelected, hasFocus, row, col);
String s = value.toString();
try {
StringTokenizer tokenizer = new StringTokenizer(s,",");
String name = tokenizer.nextToken();
String days = tokenizer.nextToken();
StringTokenizer tokenizer2 = new StringTokenizer(days," ");
Integer intDays = new Integer(tokenizer2.nextToken());
rowDays = intDays.intValue();
actCol = col;
actRow = row;
}
catch (Exception e) {
//setBackground(Color.white);
}
// if (s != "") {
if (s.equals("Sa")) {
setBackground(lightBlue);
}
else if (s.equals("So")) {
setBackground(darkBlue);
}
else if (s.equals("|")) {
setBackground(Color.red);
}
else setBackground(Color.white);
}
}
else setBackground(Color.white);
//}
 
for (int r=0; r<=rowDays;r++) {
if ((actRow != 0 && actCol != 0) && (row == actRow+(rowDays-r) && col == actCol)) {
setBackground(Color.GREEN);
super.repaint();
}
}
return this;
}
public void setValue( Object value )
{
String s = value.toString();
setText(s);
}
}