Question About CreateArray

[PLUCKYHD]

Is there a way to define the number of elements in CreateArray() without having to call them out say by the size of a file collection?

In other words instead of
CreateArrary(0,1,2,3,4,5)

use

CreateArray(num) with number being the total number of elements I want in the array

Also

Is there a way to search an array once made for only elements with a matching string?

I found FindElement but that only searches for the first match correct?

cheers

[jphipps]

You can create a variable using the Java Array class. I am pretty sure I have seen examples of it in SageMC and the default STV.

I believe for the search you can use the filterbymethod, etc.. calls to search an array for a certain value..

Thanks,
Jeff

[PLUCKYHD]

Originally Posted by jphipps

You can create a variable using the Java Array class. I am pretty sure I have seen examples of it in SageMC and the default STV.

Jeff

come again

[MeInMaui]

SageMC uses ArrayLists quite a bit. You call the constructor once and then append items to the ArrayList as necessary, usually in a loop. In Studio the code would like something like:

MyArrayList = new_java_util_ArrayList()
java_util_ArrayList_add( MyArrayList , NewItem )

The advantage is that you do not have to pre-determine the size of the ArrayList, but you can otherwise treat it as an array.

Aloha,
Mike

[jphipps]

Originally Posted by PLUCKYHD

come again

What Mike said....

[PLUCKYHD]

Originally Posted by MeInMaui

SageMC uses ArrayLists quite a bit. You call the constructor once and then append items to the ArrayList as necessary, usually in a loop. In Studio the code would like something like:

MyArrayList = new_java_util_ArrayList()
java_util_ArrayList_add( MyArrayList , NewItem )

The advantage is that you do not have to pre-determine the size of the ArrayList, but you can otherwise treat it as an array.

Aloha,
Mike

that makes sense thanks for the great explanation

[razrsharpe]

Originally Posted by MeInMaui

SageMC uses ArrayLists quite a bit. You call the constructor once and then append items to the ArrayList as necessary, usually in a loop. In Studio the code would like something like:

MyArrayList = new_java_util_ArrayList()
java_util_ArrayList_add( MyArrayList , NewItem )

The advantage is that you do not have to pre-determine the size of the ArrayList, but you can otherwise treat it as an array.

Aloha,
Mike

Thank you, thank you... I don't know java that well and that's exactly what i needed

[stuckless]

FYI... But Sun has some good resources and tutorials on Java. If you are not that familiar with java, then I'd look at the "Trails Covering the Basics" section, specifically the first 4 "Trails".

One of the Trails specifically deals with "Collections" which is term to refer to Lists, Sets, Queues, and Maps. Knowing what each of those are, and why you'd use them, can help you a lot. For example, if you are dynamically building a list of items, but you don't want to have duplicates, then you may be tempted to use a List (ArrayList), but then you'd have to track duplicates before you insert them. Using a Set (HashSet) will do that for you and save you a bunch of effort.

Also, understanding the Java implementations for various Collections will be a bonus. For example, using a HashMap will not retain the insertion order of the items, but if that is important, then can use a LinkedHashMap.

[razrsharpe]

Originally Posted by stuckless

FYI... But Sun has some good resources and tutorials on Java. If you are not that familiar with java, then I'd look at the "Trails Covering the Basics" section, specifically the first 4 "Trails".

Thanks for that link. I will definitely take a look. Some tutorials are exactly what i need

[PLUCKYHD]

Yeah me too thanks I have bought a couple of books and started reading them as well. It is just easier for me to learn by doing but I know sometimes you have to read