How to Customize JTable Background with Gradient Colors In Java Netbeans
In this Java Tutorial we will see How To Create a JTable with a gradient background In Java Using Netbeans.
What We Are Gonna Use In This Project:
- Java Programming Language.- NetBeans Editor.
Project Source Code:
package new_tutorials;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.geom.Point2D;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.plaf.basic.BasicTableUI;
/**
*
* @author 1BestCsharp
*/
public class GradientBackgroundTable extends JFrame{
public GradientBackgroundTable(){
setTitle("Gradient Background Table");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String[] columnNames = {"Column 1","Column 2","Column 3"};
Object[][] data = {
{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},
{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},
{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},
{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},
{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},
{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},
{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"},{"Data 1", "Data 2", "Data 3"},
{"Data 4", "Data 5", "Data 6"}
};
JTable table = new JTable(data,columnNames);
table.setUI(new GradientTableUI());
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane);
setSize(400,300);
setLocationRelativeTo(null);
}
public static void main(String[] args) {
GradientBackgroundTable frame = new GradientBackgroundTable();
frame.setVisible(true);
}
}
class GradientTableUI extends BasicTableUI{
@Override
public void paint(Graphics g, JComponent c){
JTable gTable = (JTable)c;
Graphics2D g2d = (Graphics2D) g;
// Create a gradient paint for the background
Point2D startPoint = new Point2D.Float(0, 0);
Point2D endPoint = new Point2D.Float(0, gTable.getHeight());
Color color1 = Color.green;
Color color2 = Color.red;
GradientPaint gradientPaint = new GradientPaint(startPoint, color1, endPoint, color2);
// Set the gradient paint and fill the entire background
g2d.setPaint(gradientPaint);
g2d.fillRect(0, 0, gTable.getWidth(), gTable.getHeight());
// Paint the rest of the table components
super.paint(g2d, c);
}
}
The Final Result:
.png "Java JTable with Gradient Background 1")
.png "Java JTable with Gradient Background 3")
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