I wrote a method which computes the ratio of even to odd numbers in an array. I know it's a simple piece of code, but I wanted to see if you have any feedback for improving it.public double percentEven(int[] a) {if(a.length <= 1) {    return 0.0;}double even = 0.0;for(int i = 0; i < a.length; i++) {    if(a[i] % 2 == 0) {        even++;    } }return (double) (even / a.length) * 100; }If the array contains zero elements, or zero even elements, return 0.
Finding the percentage of even numbers in an array
java;array;iteration
Potential bug: What if the array contains a single element, and it is even?if(a.length <= 1) {    return 0.0;}That's what happens.Easy fix, change to:if(a.length == 0) {Your indentation is slightly screwed up, but that might just be a copy-paste error.double even should be int even.You could use a for-each loop,for (int i : a) {    if(i % 2 == 0) {int[] a could be named int[] array or int[] values or int[] input.When using even as an int, use the following return statement to cast only even to a double, which will then make it use double division and not int division:return (double) even / a.length * 100;Alternatively you could use:return even * 100.0 / a.length;But I think return (double) even / a.length * 100; is better.