Type mismatch: cannot convert from Random to int [closed]

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Closed 6 years ago.

How can I fill this array with random int's and avoid this type mismatch error? I have tried to cast but I wasn't very successful. Thanks

public static int[] generateRandom(int n) {
    Random r = new Random(1);
    r.nextInt(Integer.MAX_VALUE);
    int[] ranArray = new int[n];
    for (int i = 0; i < n; i++) {
        ranArray[i] = r;
    }
    printArray(ranArray);
    return ranArray;
}

Answer 1

You cant assign Random type to int

for (int i = 0; i < n; i++) {
    ranArray[i] = r;           // Type mismatch
}

Instead do this

for (int i = 0; i < n; i++) {
    ranArray[i] = r.nextInt(Integer.MAX_VALUE);;
}

Answer 2

r is of type Random whereas ranArray[i] is integer and hence the error.