Question

public static List roll(int numberOfDice) { //line 28 static Random rnd = new Random();

//Use the Random rnd variable declared on line 28 to generate random numbers. // Don't create another Random object. // // // TODO create an ArrayList of Integer values. // TODO Roll the given number of dice. Store the values in an ArrayList and return it. return null; // TODO Replace with your code } public static int diceTotal(List diceValues) { // TODO if the diceValues List is null, return 0. (hint: do this check first) // TODO if the diceValues List is empty, return 0. // TODO add up all of the values in the List and return this total. // TODO this should still work for any number of dice in the diceValues List. return 0; // TODO Replace with your code. } public static boolean allSameValue(List diceValues) { // TODO if the diceValues List is null, return false. (hint: do this check first) // TODO if the diceValues List is empty, return false // TODO return true if all of the values in the diceValues List are the same. // TODO this method should work for 0 dice, 1 dice, 2 dice, 3 dice, 100 dice... return false; // TODO Replace with your code } }

Answer 1

CODE

public static List<Integer> roll(int numberOfDice) { //line 28 static

Random rnd = new Random();

List<Integer> res = new ArrayList<>();

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

res.add(rnd.nextInt(6) + 1);

}

return res;

}

public static int diceTotal(List<Integer> diceValues) {

if (diceValues == null) {

return 0;

}

int sum = 0;

for (int el : diceValues) {

sum += el;

}

return sum;

}

public static boolean allSameValue(List<Integer> diceValues) {

if (diceValues == null) {

return false;

}

for (int i=1; i<diceValues.size(); i++) {

if (diceValues.get(i) != diceValues.get(i-1)) {

return false;

}

}

return false;

}