null in Java by its usein SQL. The same word is used in entirely different ways and purposes Object o1 = null ; Object o2 = null ; System.out.println (o1 = o2) ; // prints : true In SQL a nullvalue never compares equal to another null value In SQL a null value is ...
Btw, if you are a complete beginner to Java's multithreading and concurrency functionalities and APIs, I highly recommend you to join a good multithreading course likeMultithreading and Parallel Computing in Javafrom Udemy. It's a great course to learn the basics which go a long way in doing ...