Genaral Trees in Java

import java.util.ArrayList;
import java.util.List;

// Node class
class TreeNode {
    String data;
    List<TreeNode> children;

    // Constructor
    public TreeNode(String data) {
        this.data = data;
        this.children = new ArrayList<>();
    }

    // Add a child to this node
    public void addChild(TreeNode child) {
        children.add(child);
    }
}

// GeneralTree class
public class GeneralTree {
    TreeNode root;

    // Constructor
    public GeneralTree(String rootData) {
        this.root = new TreeNode(rootData);
    }

    // Print the tree
    public void printTree() {
        printTree(root, "");
    }

    // Recursive method to print the tree
    private void printTree(TreeNode node, String indent) {
        if (node != null) {
            System.out.println(indent + node.data);
            for (TreeNode child : node.children) {
                printTree(child, indent + "  ");
            }
        }
    }

    public static void main(String[] args) {
        GeneralTree tree = new GeneralTree("CEO");

        TreeNode cto = new TreeNode("CTO");
        TreeNode coo = new TreeNode("COO");
        TreeNode cfo = new TreeNode("CFO");

        TreeNode dev1 = new TreeNode("Dev1");
        TreeNode dev2 = new TreeNode("Dev2");
        TreeNode acc1 = new TreeNode("Acc1");

        tree.root.addChild(cto);
        tree.root.addChild(coo);
        tree.root.addChild(cfo);

        cto.addChild(dev1);
        cto.addChild(dev2);

        cfo.addChild(acc1);

        System.out.println("Tree Structure:");
        tree.printTree();
    }
}