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Convert String [] to ArrayList<Long> ()

 
Arun Vasu
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Hi,

Could anyone help me to convert an array of String to ArrayList of Long type.

Like String [] to ArrayList<Long>() using any java API?

Thanks,
Arun
 
Rob Spoor
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Try using a simple loop combined with any methods / constructors of java.lang.Long.
 
Arun Vasu
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I need to avoid looping, so any solutions without using loops ?
 
Henry Wong
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Arun Vasu wrote:I need to avoid looping, so any solutions without using loops ?


What's wrong with loops?

Henry
 
Kevin Workman
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Arun Vasu wrote:I need to avoid looping, so any solutions without using loops ?


That's not really how this works. What did you try? Where are you stuck? What worked? What didn't work? How didn't it work? Be specific and post code that demonstrates what you've tried.
Show some effort.

Why do you need to avoid looping?
Do your own homework.
 
Rob Spoor
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No. Turning a String[] into an ArrayList<String> - not a problem. Turning an ArrayList<String> into a String[] - not a problem. But because you need to convert each String into a Long you have no other option than to use a loop.

Actually, all solutions include a loop. The loop may be hidden for you (e.g. the ArrayList(Collection) constructor, List.toArray(...)) but it's still there.
 
Arun Vasu
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Thanks you all for your helpful suggestions! I decided to go with using loops.
 
Campbell Ritchie
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. . . and welcome to JavaRanch
 
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