The operator + is undefined for the argument type(s) String, void

Question

public class chap7p4 {
    public static void main(String[] args) {
        int[] heights = { 33, 45, 23, 43, 48, 32, 35, 46, 48, 39, 41, };
        printArray(heights);         


        

Answer 1

Change return type of your findAverage() method,

i.e void findAverage to int findAverage

public static int findAverage(int[] array) {
    int total = 0;
    for (int i = 0; i <= array.length; i++) {
        total = total + array[i];
    }
    return total / array.length;
}