Printing prime number from 1 to 100

Question

This program is supposed to output the prime numbers between 1 and 100. Will anyone please explain me the flow the programme below? I am having difficulty in writing the progra

Answer 1

    public static List getPrimeNumbers(int from , int to) {
    List list = new ArrayList<>();
    for (int i = from;i <= to; i++) {
        int count = 0;
        for (int num = i; num>=1;num--) {
            if(i%num == 0){
                count++;
            }
        }
        if(count ==2) {
            list.add(i);
        }
    }
    return list;
}