import java.util.ArrayList;
public class GradeAnalyzer{
public GradeAnalyzer(){
}
public int getAverage(){
ArrayList<Integer> grades = new ArrayList<Integer>();
if (grades.size() < 1){
System.out.println("Error. Not empty");
return 0;
} else {
int sum = 0;
for(Integer grade : grades){
sum = sum + grade;
}
int average = sum / grades.size();
System.out.println(average);
return average;
}
}
public static void main (String[] args){
ArrayList<Integer> myClassroom = new ArrayList<Integer>();
myClassroom.add(98);
myClassroom.add(92);
myClassroom.add(88);
myClassroom.add(75);
myClassroom.add(61);
myClassroom.add(89);
myClassroom.add(95);
GradeAnalyzer myAnalyzer = new GradeAnalyzer();
myAnalyzer.getAverage(myClassroom);
}
}
GradeAnalyzer.java:48: error: method getAverage in class GradeAnalyzer cannot be applied to given types;
myAnalyzer.getAverage(myClassroom);
^
required: no arguments
found: ArrayList
reason: actual and formal argument lists differ in length
1 error
I do not know what to do.
I found a discussion on this topic. But for those links I could not fix anything.