MainClass.java Source code

Java tutorial

Introduction

Here is the source code for MainClass.java

Source

import java.awt.BorderLayout;
import java.awt.Color;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JToolTip;

public class MainClass {

    public static void main(String args[]) {
        JFrame frame = new JFrame("Tooltip");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel = new JPanel();
        panel.setToolTipText("<HtMl>Tooltip<br>Message");
        frame.add(panel, BorderLayout.CENTER);

        JButton button = new JButton("Hello, World") {
            public JToolTip createToolTip() {
                JToolTip tip = super.createToolTip();
                tip.setBackground(Color.YELLOW);
                tip.setForeground(Color.RED);
                return tip;
            }

            public boolean contains(int x, int y) {
                if (x < 100) {
                    setToolTipText("x < 100");
                } else {
                    setToolTipText("else");
                }
                return super.contains(x, y);
            }
        };

        button.setToolTipText("Hello, World");
        frame.add(button, BorderLayout.NORTH);

        frame.setSize(300, 150);
        frame.setVisible(true);
    }
}