Hopefully, it wasn't this doubt / confusion that cause it. Sometimes, fairly or unfairly, the company senses it as being uninterested, and decide to cut-their-loses during the interview process.
join() causes the currently executing thread to move into which state:
what does only join() on line#8 mean in the following example
But when a byte, short or char type variable is initialized with a non-long, compile-time, "Constant Expression" and if the value is within the range of type concerned then ONLY implicit narrowing takes place.(Compile time error otherwise)
But you also can't declare a method with a wildcard parameter.