My personal solution in Java:

public static void main(String[] args) {

int sum = 0;

for(int i = 0; i <= 120; i++) {

if(i % 4 == 0 || i % 5 == 0) {

System.out.println(i);

sum += i;

}

}

System.out.println("Sum:\t" + sum);

}

BONUS

public static void main(String[] args) {

Scanner scan = new Scanner();

int sum = 0, min, max, fact1, fact2;

System.out.print("Enter the low end of the range:\t"); min = scan.nextInt();

System.out.print("Enter the high end of the range:\t"); max = scan.nextInt();

System.out.print("Enter one factor to find multiples of:\t"); fact1 = scan.nextInt();

System.out.print("Enter another factor to find multiples of:\t"); fact2 = scan.nextInt();

for(int i = min; i <= max; i++) {

if(i % fact1 == 0 || i % fact2 == 0) {

System.out.println(i);

sum += i;

}

}

System.out.println("Sum:\t" + sum);

}