A simple tool to help analyze classroom grades stored in an ArrayList. At the analyzer is able to retrieve the classroom average.

GradeAnalyzer.java

/*
A simple tool to help analyze classroom grades stored in an ArrayList. At the analyzer is able to retrieve the classroom average.

*/
import java.util.ArrayList;

public class GradeAnalyzer{
  
  
  public GradeAnalyzer(){
    
  }
  
  public int getAverage(ArrayList<Integer> grades){
    if( grades.size() <1){
      System.out.println("There's nothing in this list");
      return 0;
    }else{
      int sum = 0;
      for(int grade: grades){
        sum+=grade;
      }
      
      int average= sum/grades.size();
      System.out.println(average);
      return average;
      
    }
    
  }
  
  public static void main(String[] arges){
    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);
  }
}