Best books about JAVA programming:

• Head First JAVA, Second Editon
• Effective Java Programming Language Guide
• Professional Java, JDK 5 Edition
• Ivor Horton's Beginning Java 2, JDK 5 Edition

JAVA JToolTip

This example shows how to add multiple line tooltips. It includes three files:MultiLineToolTipExample.java, MultiLineToolTipUI.java and MultiLineToolTip.java

import java.awt.*;
import javax.swing.*;

public class MultiLineToolTip extends JToolTip {
public MultiLineToolTip() {
setUI(new MultiLineToolTipUI());
}
}