@Test public void basicTest2() { TreeNode root = new TreeNode(1); root.left = new TreeNode(-2); root.left.right = new TreeNode(-3); Assert.assertEquals(IsBst.isBst(root), false); }
public static boolean isBst(TreeNode root) { return false; }
IsBst { public static boolean isBst(TreeNode root) { return false; } }
IsBst { public static boolean isBst(TreeNode root) { return false; }  }
IsBst { public static boolean isBst(TreeNode root) { return false; }  static boolean isBst(TreeNode root); }
IsBst { public static boolean isBst(TreeNode root) { return false; }  static boolean isBst(TreeNode root);  }