Student.java

import java.io.*;
import java.util.*;
public class Student {

	public static void main(String args[]) throws IOException
	{
		Scanner scan = new Scanner(System.in);
		Scanner file = new Scanner(new File("FinalExamDataFile.txt"));

		List<String> FirstName = new ArrayList<String>();
		List<String> LastName = new ArrayList<String>();
		List<String> IDNumber = new ArrayList<String>();
		List<Integer> Average = new ArrayList<Integer>();

		//initiating all of the counters in the program
		int j;
		int above70 = 0;
		int below70 = 0;

		//counters for the for loops
		int average = 0;

		for(int i=0; i<2; i++){

			int sum = 0;
			System.out.println("Enter the Student's first name");
			FirstName.add(scan.next());

			System.out.println("Enter the student's last name");
			LastName.add(scan.next());

			System.out.println("Enter the student's ID number");
			IDNumber.add(scan.next());

			System.out.println("Enter up to 15 grades, enter -1 to finish.");

			//adds up all 15 grades then divides them by 15 to get the student's average
			for(j=0; j<3; j++){
				int score = scan.nextInt();
			      if (score > 100)
			      {
			        System.out.println("The score must be between 0-100");
			        j--;
			      }
			      else if (score >= 0){
			    	  sum = sum + score;
			      }
			      else if (score <= 0){
			    	  System.out.println("The score must be between 0-100");
			    	  j--;
			      }
			      else if (score == -1)
			      {
			        System.out.println("Thank you.");
			        break;
			      }
			}
			//takes the average of the 15 grades and adds to the "average" array
			Average.add(sum / j);
			if(sum/j >= 70){
				above70++;
			}
			else{ below70++; }
		}

		//allows user to call on a student to see their grade
		for(int k=0; k < k+1; k++){
		System.out.println("Enter the student's first name, last name, or ID Number to see their results");
		String search = scan.next();
		int index;
		index = FirstName.indexOf(search);
		index = LastName.indexOf(search);
		index = IDNumber.indexOf(search);
		if(FirstName.contains(search) || LastName.contains(search) || IDNumber.contains(search)){
			System.out.println("Student: " + FirstName.get(index) + " " + LastName.get(index) + " " +
			IDNumber.get(index) +  "\nStudent's Average: " + Average.get(index));
		}
		else{
			System.out.println("The student was not found.");
			}
		}

		//reading the file goes here

	}

}