Thread: how to test arrays in a terminal in java?

public class OneA {
	public int product( int [] a ) {
		int product = 1;
		for ( int i = 0; i < a.length; i++ ) {
		product *= a[i];
		}
		return product;
		}
		}

the above code should give me results like the following:
product(new int[] {1, 2, 3, 4, 5}) -> 120
product(new int[] {2, 3, 7}) -> 42

i know the code is right but how do i test it in the terminal? after compiling the class i.e javac OneA.java, what should be the next command in the terminal?

If i just type java OneA i get the following error: Exception in thread "main" java.lang.NoSuchMethodError: main

I know it's java OneA but after that what should be written so that it can give me the product of say 2 3 and 4.

Like if i have a java program Add.java and i have 2 arguments defined so at the terminal i would say javac Add.java and then java Add 2 3 which will give me 5

about the link Norm provided..i know that...i need the explanation to "test" "arrays" in a terminal.