Question

Write a program to find average marks of 3 subject?

Answer 1

Answer:

import java.io.*;  

import java.util.*;  

import java.lang.*;  

 

class Average marks for 3 subjects {  

 

   // Function to find the  

   // list of students having maximum average score  

   // Driver code  

   static void getStudentsList(String[] file)  

   {  

       // Variables to store average score of a student  

       // and maximum average score  

       int avgScore;  

       int maxAvgScore = Integer.MIN_VALUE;  

 

       // List to store names of students  

       // having maximum average score  

       ArrayList<String> names = new ArrayList<>();  

 

       // Traversing the file data  

       for (int i = 0; i < file.length; i += 4) {  

 

           // finding average score of a student  

           avgScore = (Integer.parseInt(file[i + 1]) +  

                       Integer.parseInt(file[i + 2]) +  

                      Integer.parseInt(file[i + 3])) / 3;  

 

           if (avgScore > maxAvgScore) {  

               maxAvgScore = avgScore;  

 

               // Clear the list and add name of student  

               // having current maximum average score in the list  

               names.clear();  

               names.add(file[i]);  

           }  

 

           else if (avgScore == maxAvgScore)  

               names.add(file[i]);  

       }  

 

       // Printing the maximum average score and names  

       // of students having this maximum average score  

       // as per the order in the file.  

       for (int i = 0; i < names.size(); i++) {  

           System.out.print(names.get(i) + " ");  

       }  

 

       System.out.print(maxAvgScore);  

   }  

 

   // Driver code  

   public static void main(String args[])  

   {  

       String[] file = { "Shrikanth", "20", "30",  

                       "10", "Ram", "100", "50", "10" };  

       getStudentsList(file);  

   }  

}

Explanation: