Question

I want to store a data structure thats a table with one column Strings and another column of Ints.

List<Entry<String, Integer>> li = new LinkedList<Entry<String, Integer>>(); 

would do the job for a list but I would rather have the performance of and need the memory of an array.

I tried

Entry<String, Integer>[]  = new Entry<String, Integer>[10];

but that doesn’t seem to work.

Is Entry the right datatype to use?

Answer 1

If you really need an array of generic types, you can do this:

Entry<String, Integer>[] array = new Entry[10];

It gives you a compilation warning though. You can read more about it here:

http://www.devarticles.com/c/a/Java/Wildcards-Arrays-and-Generics-in-Java/2/