How to use an integer array for a generic method?

Question

My insertion sort method is declared using this statement:

    public static <AnyType extends Comparable<? super AnyType>> 
          void insertionSort(AnyType[] a){

I am having trouble understanding how to make this generic array type parameter accept an array of primitive type int.

How would I call this method with int[] as my parameter, or at least how would it be used to sort an int array?

I don't believe you can, you'd have to use Integer instead. — JonK
– JonK, Commented May 2, 2015 at 23:16

saml · Accepted Answer · 2015-05-02 23:24:46Z

1

Use a wrapper class - Integer. There is something called autoboxing which means that if you pass an argument of primitive type int it will convert automatically to Integer :-)

http://en.wikipedia.org/wiki/Primitive_wrapper_class https://docs.oracle.com/javase/tutorial/java/data/autoboxing.html

answered May 2, 2015 at 23:24

saml

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