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JAVA JTable column header multiple line

The following code demos how to insert multiple line text into JTable header. This example has two files: MultiLineHeaderExample.java and MultiLineHeaderRenderer.java.


//this Example is modified from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;

/**
* @version 1.0 11/09/98
*/
public class MultiLineHeaderExample extends JFrame {
MultiLineHeaderExample() {
super( "Multi-Line Header Example" );

DefaultTableModel dm = new DefaultTableModel();
dm.setDataVector(new Object[][]{{"a","b","c"},
{"A","B","C"}},
new Object[]{"Fire Column\nalpha","Second Column\nbeta","Third column\ngamma"});

JTable table = new JTable( dm );
MultiLineHeaderRenderer renderer = new MultiLineHeaderRenderer();
Enumeration enumm = table.getColumnModel().getColumns();
while (enumm.hasMoreElements()) {
((TableColumn)enumm.nextElement()).setHeaderRenderer(renderer);
}
JScrollPane scroll = new JScrollPane( table );
getContentPane().add( scroll );
setSize( 400, 110 );
setVisible(true);
}

public static void main(String[] args) {
MultiLineHeaderExample frame = new MultiLineHeaderExample();
frame.addWindowListener( new WindowAdapter() {
public void windowClosing( WindowEvent e ) {
System.exit(0);
}
});
}
}

 


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Best books about JAVA programming from Amazon
Professional Java, JDK 5 Edition (Paperback Simply Java Programming: An Application-Driven Tutorial Approach (Paperback) Effective Java Programming Language Guide (Paperback) Head First Java, 2nd Edition (Paperback) Java : An Introduction to Problem Solving and Programming (4th Edition)

 

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