How can I make a method take an array of any type as a parameter?

Question

I would like to be able to take in any array type as a parameter in a method.:

public void foo(Array[] array) {
    System.out.println(array.length)
}
         


        

Answer 1

Well, you can do something like this (because an array is an Object) -

public static int getArrayLength(Object array) {
    return Array.getLength(array);
}

public static void main(String[] args) {
    int[] intArray = { 1, 2, 3 };
    String[] stringArray = { "1", "2", "c", "d" };
    System.out.println(getArrayLength(intArray));
    System.out.println(getArrayLength(stringArray));
}

Output is

3
4