JAVA - Please complete the below method isBalanced()

/*

*/

import binarytree.*;

/** A program that tests the isBalanced() method. */ public class IsBalanced { /** This method defines a balanced binary tree as one whose left branch has the same size as the right branch. */ public static boolean isBalanced(BTree btree) {

}

// A simple test case for isBalanced(). public static void main(String[] args) { BTree btree = new LinkedBTree<>(1, new LinkedBTree<>(12), new LinkedBTree<>(123));

System.out.println( btree ); System.out.println("isBalanced : " + isBalanced(btree) ); BTree2dot.btree2dot(btree, "btree"); BTree2png.btree2png("btree"); } }