What is the difference between String...args vs String [] args(as parameters in main) in java ?

Answer 1

varargs ... must be last in order of parameters
cant use two varargs ... in one method parameters

Answer 2

sure, not in main()

Answer 3

difference is in methods with different types of parameters, you can still use varargs ... but there it depends of order of parameters, compared to String[] which is independed of parameter order.