Java: how do I initialize an array size if it's unknown?

Question

I\'m asking the user to enter some numbers between 1 and 100 and assign them into an array. The array size is not initialized since it is dependent on the number of times the us

Answer 1

String line=sc.nextLine();
    int counter=1;
    for(int i=0;i=line.length() || line.charAt(j)==' ') {
                break;
            }
            j++;
        }
        numbers[counter]=Integer.parseInt(line.substring(i,j));
        i=j;
        counter++;  
    }
    for(int i=0;i

I always use this code for situations like this. beside you can recognize two or three or more digit numbers.