Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Component;
import java.awt.Graphics;

import javax.swing.Icon;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.UIManager;

public class Main {

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

        Icon empty = new TreeIcon();
        UIManager.put("Tree.closedIcon", empty);
        UIManager.put("Tree.openIcon", empty);
        UIManager.put("Tree.collapsedIcon", empty);
        UIManager.put("Tree.expandedIcon", empty);
        UIManager.put("Tree.leafIcon", empty);

        JTree jt = new JTree();
        frame.add(jt);
        frame.pack();
        frame.setSize(300, 400);
        frame.setVisible(true);
    }
}

class TreeIcon implements Icon {

    private static int SIZE = 0;

    public TreeIcon() {
    }

    public int getIconWidth() {
        return SIZE;
    }

    public int getIconHeight() {
        return SIZE;
    }

    public void paintIcon(Component c, Graphics g, int x, int y) {
        System.out.println(c.getWidth() + " " + c.getHeight() + " " + x + " " + y);
    }
}