PrimeNumber.java

public class Test {


    public static void main(String[] args){
        for (int i= 1; i<= 100; i++) {
            if(isPrimeNumber(i)) {
                System.out.println(i); //Only Print prime numbers
            }

        }
    }

    private static boolean isPrimeNumber(int num){
        int number = num;
        boolean value = true;
        //we were missing this num check - if num is 1 return true;
        if(num ==1){
            return true;
        }
        num--;
        while(num!=1){
            if(number%num == 0){
                value = false;
            }
            num--;
        }
        return value;
    }

    //Output of the program
    //1
    //2
    //3
    //5
    //7
    //11
    //13
    //17
    //19
    //23
    //29
    //31
    //37
    //41
    //43
    //47
    //53
    //59
    //61
    //67
    //71
    //73
    //79
    //83
    //89
    //97
}