Stiller77 Stiller77 - 11 months ago 45
Java Question

How to call a method that takes an array of integer numbers and get the return statement

I want to use the method averageCalc() which takes an array of integer numbers as its parameter and returns the average which is of double type. How can I call my method I want to return the array as a average of type double .

public static void main(String[] args) {
int number = 0;
number = [] num ( 4, 3, 9);


This is my method called averageCalc() that takes an array of integer numbers and returns the average of the numbers in the array

public double averageCalc(int[] num) {
int result =0;
double average = 0;

for (int i=0; i < num.length; i++) {

result = result + num[i];

average = (double)result / num.length;;
return average;



Form an array:

int[] numbers = {4, 3, 9};

then pass it to the method:

double average = averageCalc(numbers);

Better, declare your method as having a varargs parameter:

public double averageCalc(int... num) { 
    // same method body - num is actually int[]

Then you can call it more conveniently like this:

double average = averageCalc(4, 3, 9);