Generic methods don't work with 'int' type variable?

I'm having some trouble with the two variables: int and Integer. They're roughly the same, but (as shown in the code below) they don't always act the same. Here's my problem: This piece of code works just perfect. I've made a generic method, printArray which needs an array of any kind of variable (since it is generic) in order to work. Here I use the variable type Integer. But, when I change my type of array 'getal' to int (instead of Integer), the method printArray doesn't work annymore. Why is that? Do generic methods not work with int type variables? ``` package Oefenen; public class printArray { public static void main (String args[]) { Integer[] getal = {10, 20, 30, 40, 50}; printArray(getal); } public static <E> void printArray (E[] intArray) { for (E element : intArray) { System.out.printf("%s\n", element); } } } ``` ps: If I change the generic method to a method only for int's, it does work. So I was thinking the problem is : Generic methods do not work with int's. Am I