Question

Why typecast is not working in this case ?

int b[] = {1,2,3,4,5};
    ArrayList list = new ArrayList();
    for (int i = 0; i < b.length; i++) {
    list.add(i);
    }
        Collections.sort(list);
    int c = (int) list.get(0); // This line is giving error 

How to resolve this error??

Answer 1

Try like this

    ArrayList<Integer> list = new ArrayList<Integer>(); 
    int c=list.get(0);