Re: passing parameters to methods to get a value back (by reference in C++) and one other question

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#19697

From: Eric Nagler
Date: Fri, 02 Jan 1998 00:00

30 lines
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You can't do that in Java. Integer objects are immutable. 

Integer modify(Integer data)
{
   return new Integer(++data.intValue()):
}
// ...
Integer answer = modify(new Integer(1));
// answer now contains a 2


On Tue, 30 Dec 1997 21:24:38 GMT, ait@concentric.net (Jeff Kish)
wrote:

>Sorry for my vagueness...
>In C++ I can do:
>
>routine(int & modifedByRoutine) {modifiedByRoutine = 6;} // pretend 
>\\ this is a method, not a stand alone function
>
>main()
>{
>int someInt = 2;
>  routine(someInt);
>// someInt equals 6 now
>}
>
>Now, how to do this in Java, i.e. make the parameters return something
>"changed" to the calling environment

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From: 76711.521@compuserve.com (Eric Nagler)
Subject: Re: passing parameters to methods to get a value back (by reference in C++) and one other question
Date: 1998/01/02
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