required: double [] found: no arguments

Question

Code:

 ArrayList  marks = new ArrayList();

 String output = \"Class average:\" + calculateAverage() + \"\\n\" + \"Maximum mark:\" +  
 calcu         


        

Answer 1

You're calling the method calculateAverage this way: calculateAverage(), without any argument. But the method is declared this way:

private double calculateAverage(double [] marks) 

It thus needs one argument of type double[], but you don't pass anything.