Question

Why do I get an unreachable statement error when I compile my code. The error comes on the last line of code (System.out). It is inside the main method and I don’t see why it isn’t reachable.

public class Count {

    public static void main(String[] args) {
        Vector numberList = new Vector();
        double randomNum;

        //for loop to get numbers and add to vector
        for (int i = 0; i <= 9999; i++) {
            do {
                randomNum = Math.random();
            } while (randomNum < .01 || randomNum > .99);

            //takes the random number, rounds it, and multiplies it by 100
            //so that the numbers go from 1 to 99
            Math.round(randomNum *= 100);
            //converts the double to an int
            int tempNum = (int) randomNum;
            //the vector is built
            numberList.add(i, tempNum);
        }

        //sorts numbers
        Collections.sort(numberList);

        int count[] = new int[99];

        for (int j = 1;; j++) {
            for (int i = 0; i < 9999; i++) {
                if ((numberList.elementAt(i)) == j) {
                    count[j] += 1;
                }
            }
        }

        System.out.println(count[1]);
    }
}

Answer 1

Your outer for loop doesn’t have an ending conditional:

for(int j=1;;j++){

j will increment indefinitely. You’re likely looking for:

for (int j = 0; j < count.length; j++) {