Develop a program to demonstrate the use of tree component in swing in java.

 *State the use of JTree in Swing.

1- The JTree class is used to display the tree structured data or hierarchical data.

2- JTree Is complex component .

3- It has root node at the top most which is parent for all nodes in the tree

4- it inherits JComponent class.

import java.awt.*;

import javax.swing.JFrame;

import javax.swing.JTree;

import javax.swing.tree.*;

public class treeexample {

    treeexample() {

        JFrame f = new JFrame();

        DefaultMutableTreeNode style = new DefaultMutableTreeNode("Style");

        DefaultMutableTreeNode color = new DefaultMutableTreeNode("color");

        DefaultMutableTreeNode font = new DefaultMutableTreeNode("Font");

        style.add(color);

        style.add(font);

        DefaultMutableTreeNode red = new DefaultMutableTreeNode("red");

        DefaultMutableTreeNode blue = new DefaultMutableTreeNode("blue");

        DefaultMutableTreeNode black = new DefaultMutableTreeNode("black");

        DefaultMutableTreeNode green = new DefaultMutableTreeNode("green");

        color.add(red);

        color.add(blue);

        color.add(black);

        color.add(black);

        color.add(green);

        JTree jt = new JTree(style);

        f.add(jt);

        f.setSize(900, 900);

        f.setVisible(true);

    }

    public static void main(String args[]) {

        new treeexample();

    }

}

output: