Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;

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

        DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
        DefaultMutableTreeNode mercury = new DefaultMutableTreeNode("Mercury");
        root.insert(mercury, 0);
        DefaultMutableTreeNode venus = new DefaultMutableTreeNode("Venus");
        root.insert(venus, 1);
        DefaultMutableTreeNode mars = new DefaultMutableTreeNode("Mars");
        root.insert(mars, 2);
        JTree tree = new JTree(root);

        JScrollPane scrollPane = new JScrollPane(tree);
        frame.add(scrollPane, BorderLayout.CENTER);
        frame.setSize(300, 150);
        frame.setVisible(true);
    }
}