CODEWITHSUNDEEP
javaobjectarraylistint
Kira
Kira

Reputation: 965

Array list intValue()

Hey i have an array list of numbers and when i try to convert into int i get The method intValue() is undefined for the type Object error. This is the code snippet.

while (1>0) {
        a = Integer.parseInt(in.next());
        if(a == -999)
            break;
        else {
            list.add(a);
            i++;
        }
    }
    int j;
    int[] array = new int[list.size()];
    for(j=0;j<list.size();j++) {
        array[j] = list.get(j).intValue();
    }

Upvotes: 0

Views: 2778

Answers (1)

Juned Ahsan
Juned Ahsan

Reputation: 68715

It seems you have created a list of objects and not Integers. Hence when you call intValue then it says that there is no such method for type Object. I would recommend that you define your list as list of Integers using generics. Here is the sample:

List<Integer> list = new ArrayList<Integer>();

If you don't do so then you list created will hold the items of class Object. And then you need to cast the object fetched from the list everytime to Integer.

Upvotes: 2

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