public class Client {
    public static void main(String[] args) {
        BST tree = new BST();
        
        System.out.println();
        System.out.println("Is BST? " + tree.isBST());

        int[] tests = {5, 0, 1, 2, 4, 9, 8};
        for (int value : tests) {
            tree.add(value);
        }
        
        tree.printTree();
        tree.removeLeaves();
        tree.printTree();
        
        /*
        for (int value : tests) {
            System.out.println("Removed " + value);
            tree.remove(value);
            tree.printTree();
        }
        */
    }
}