java - invoke static method using this.Method vs ClassName.Method

Question

One static method Func() is defined within a class. Invoking it in this.Func does not have compile error. Also, invoking static method against an object doesnt have any disadvantage. And make calling method simple since the class name might be difficult to spell. Not sure, this is a good java coding way.

Answer 1

If you are calling a static method, you shouldn't use an instance, even though it compiles because it is plain confusing. Consider the following.

Thread t = new Thread( ... );
t.start();
t.sleep(1000);

The last method doesn't operate on the thread t as it is static. It causes the current thread to sleep.

Thread t = null;
t.yield(); // compiles and runs even thought `t` is null.