In Java.

1. Write a method isOddEven that takes a parameter of int array and that returns true if all odd numbers in the array come before all the even numbers. The main() should unit test the method. Please at least test all testing cases listed here.

Example Input | Expected Output

{7, 3, 6, 6} | true

{1, 2, -3} | false {-4} | true

{} // empty arr | true // no violation