public static void main(String[] args) { BinaryTreeElement root = new BinaryTreeElement(8); BinaryTreeElement element11 = new BinaryTreeElement(8); BinaryTreeElement element12 = new BinaryTreeElement(9); BinaryTreeElement element121 = new BinaryTreeElement(10); BinaryTreeElement element122 = new BinaryTreeElement(12); BinaryTreeElement element1222 = new BinaryTreeElement(14); root.setRightObject(element11); root.setLeftObject(element12); element12.setRightObject(element121); element12.setLeftObject(element122); element122.setLeftObject(element1222); System.out.print("THE TOTAL SUM IS: " + calculate(root)); }