Question

I want to divide the elements of my array for the first element of the array, the method is working ok, but the last element is not been divided.

I think I had to use <= array.length…, but it obviously gives me an array out of bound exception. How can I achieve this without <=length. PS: the first element should not be dived/taken into consideration as it is the dividend. My code is the following:

public class Ris
{
    public static void main()
    {
        double[] testResult = {2.0, 3.6, 5.0, 2.0};
        for(int element = 0; element < testResult.length; element++){
            if( testResult[element] > testResult[0]){//excludes 1st element
                testResult[element] = testResult[element] / testResult[0] ;// divides elements by first element 0
            }
          System.out.println(testResult[element]); 

        }
    }
}

Answer 1

You’re skiping the first elemnt in a bad manner –

if( testResult[element] > testResult[0]){

Skips everything that is not more than first element – more then 2.0

You probably ment to test for

if( element > 0){

But you can also just skip first element in the definition of for cycle

for(int element = 1; element < testResult.length; element++){