I have an arraylist A of Integer type I created it as ArrayList lt Integer gt A new ArrayList lt Integer gt Now I want to pass it as an argument to function AnalyseArray How can I achieve this

public void AnalyseArray ArrayList lt Integer gt array Do something ArrayList lt Integer gt A new ArrayList lt Integer gt AnalyseArray A

The answer is already posted but note that this will pass the ArrayList by reference So if you make any changes to the list in the function it will be affected to the original list also lt access-modfier gt lt returnType gt AnalyseArray ArrayList lt Integer gt list analyse the list return value call it like this x AnalyseArray list or pass a copy of ArrayList x AnalyseArray list clone

Pass Arraylist as argument to function

I have an arraylist A of Integer type. I created it as:

ArrayList<Integer> A = new ArrayList<Integer>();

Now, I want to pass it as an argument to function AnalyseArray().

How can I achieve this?

This question is tagged with java arraylist

~ Asked on 2013-06-15 15:38:16

The Best Answer is

public void AnalyseArray(ArrayList<Integer> array) {
  // Do something
}
...
ArrayList<Integer> A = new ArrayList<Integer>();
AnalyseArray(A);

~ Answered on 2013-06-15 15:40:55

The answer is already posted but note that this will pass the ArrayList by reference. So if you make any changes to the list in the function it will be affected to the original list also.

<access-modfier> <returnType> AnalyseArray(ArrayList<Integer> list)
{
//analyse the list
//return value
}

call it like this:

x=AnalyseArray(list);

or pass a copy of ArrayList:

x=AnalyseArray(list.clone());

~ Answered on 2013-06-15 15:45:27

Pass Arraylist as argument to function

The Best Answer is

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