What kind of Object will the List return?

Has your professor covered the cast operator yet?

That will not be necessary with current Java versions. Has your professor
covered generic types yet?

-- Lew

JamesG כתב:

Hi,
At the beginning I thought that this answer will be easy, I guess not.

I assume you are using java version 1.5 or 1.6 which supports
generics.

When trying to define the following code:
int[] myArray = {1, 2, 5, 3, 6, 2};
List<Integer> list = java.util.Arrays.asList(myArray);

int max = Collection.max(list);

You will receive an error because asList returns a list with the
following type:
List<int[]> i.e. a list that contains arrays and not as expected List
that contains integers, I assume it happens because java does not do
any autoboxing here.

To make a long story short I use Integer:
Integer[] myArray = {1, 2, 5, 3, 6, 2};
            List<Integer> list = java.util.Arrays.asList(myArray);
            int val = Collections.max(list);

If you are using java version 1.4 you can use the following code:
Integer[] myArray = {1, 2, 5, 3, 6, 2};
            List list = java.util.Arrays.asList(myArray);
            Integer val = (Integer) Collections.max(list);

For more information on boxing and generics please read
http://www.google.co.il/search?q=java+generics+tutorial

please send me how to create jar file from command prompt

thank you