How to Print a JTable with Image in Header

In this tutorial, we are going to see how to print a JTable with an image in the header. JTable is a flexible Swing component, is a subclass of JComponent class and it can be used to create a table with information displayed in multiple rows and columns. We can create a JTable with a header of type JLabel by customizing the code by implementing the TableCellRenderer interface and we need to redefine the getTableCellRendererComponent() method.

 

Java Program to Print a JTable with Image in Header:

import java.awt.*;

import javax.swing.*;

import javax.swing.border.*;

import javax.swing.table.*;

public class Main

{

public static void main(String args[])

{

//JTable Header

String columns[] = { "French", "English" };

//data for JTable in a 2D table

Object data[][] = {

{ "Lumière", "Light" },

{ "Cheval", "Horse" },

{ "Chien", "Dog" },

{ "Oiseau", "Bird" },

{ "Soleil", "Sun" },

{ "Neige", "Snow" },

{ "Porte", "Door" },

{ "Voiture", "Car" },

{ "Ville", "City" },

{ "Bateau", "Boat" },

{ "Avion", "Plane" }

};

//create a frame

JFrame f = new JFrame("Print JTable with Image in Header");

//create a JTable with data

JTable table = new JTable(data, columns);

JScrollPane scroll = new JScrollPane(table);

//create two icons

ImageIcon icon1 = new ImageIcon("icon1.png");

ImageIcon icon2 = new ImageIcon("icon2.png");

//creates a border

Border headerBorder = UIManager.getBorder("TableHeader.cellBorder");

//creates two labels with a border

JLabel label1 = new JLabel(columns[0], icon1, JLabel.CENTER);

label1.setBorder(headerBorder);

JLabel label2 = new JLabel(columns[1], icon2, JLabel.CENTER);

label2.setBorder(headerBorder);

//set the renderer

TableCellRenderer renderer = new JTableCellRenderer();

//define column model

TableColumnModel model = table.getColumnModel();

//get the two columns

TableColumn col0 = model.getColumn(0);

TableColumn col1 = model.getColumn(1);

col0.setHeaderRenderer(renderer);

col0.setHeaderValue(label1);

col1.setHeaderRenderer(renderer);

col1.setHeaderValue(label2);

f.getContentPane().add(scroll, BorderLayout.CENTER);

f.setSize(300, 300);

f.setVisible(true);

}

}

//renderer class

class JTableCellRenderer implements TableCellRenderer

{

public Component getTableCellRendererComponent(JTable table, Object

value, boolean isSelected, boolean hasFocus, int row, int column)

{

return (JComponent)value;

}

}

Output: