ReportCard.java

package com.example.nico.reportcard;

import java.util.ArrayList;

public class ReportCard {

    // School name is a constant as this will never change
    private static final String School = "Your University";

    /* Declaring Student and Date variables as part of the info to display.
       Subject, Grade and Comment variables will be part of an ArrayList.
    */

    private String mStudent;
    private String mDate;

    // ArrayList holding Strings (3) arrays for Subjects, Grades and Comment only.

    private ArrayList<String[]> mReportData;

    // Constructor for the class ReportCard.

    public ReportCard(String student, String date) {
        mStudent = student;
        mDate = date;
        mReportData = new ArrayList<>();
    }

    // Getters method to access data.

    public String getSchool(){
        return School;
    }

    public String getStudent() {
        return mStudent;
    }

    public String getDate() {
        return mDate;
    }

    public ArrayList<String[]> getReportData() {
        return mReportData;
    }

    // Setters methods for variables mStudent and mDate.

    public void setStudent(String student) {
        mStudent = student;
    }

    public void setDate(String date) {
        mDate = date;
    }

    // This setter for mGrade will adds the information of subject, grade and comment into the string array.
    public void setSubjectGrade(String subject, String grade, String comment) {

        // String Array of 3 inputs.
        String[] subjectGrade = new String[3];

        // Add subject and grade Strings to the subjectGrade array.
        subjectGrade[0] = subject;
        subjectGrade[1] = grade;
        subjectGrade[2] = comment;

        // Add subjectGrade array to the mReportData ArrayList.
        mReportData.add(subjectGrade);
    }

    // Return a particular subject report from the report card.
    public String[] getReportData(int indexNumber) {
        return mReportData.get(indexNumber);
    }

    // Remove a particular subject report from the report card.
    public void removeReportData(int indexNumber) {
        mReportData.remove(indexNumber);
    }

    // Using toString method to show the data in a proper way.
    @Override
    public String toString() {

        /* Create subjectReportList String which will contain all subject reports to be displayed
         * through the toString method.
        Initialise with a new line */
        String reportData = "\n";

        /* Loop through the ArrayList converting all subject arrays to strings and adding them to
        the subjectReportList string */
        for (int index = 0; index < mReportData.size(); index++) {
            String[] subjectReport = mReportData.get(index);
            String subject = subjectReport[0];
            String grade = subjectReport[1];
            String comment = subjectReport[2];
            reportData = reportData + "Subject: " + subject + ", Grade: "
                    + grade + ", Comment: " + comment + "\n";
        }

        // Return the full report card
        return  "School: " + School + "\n" +
                "Student: " + mStudent + "\n" +
                "Report Date: " + mDate + "\n" +
                reportData;

        /* Supposed information to be displayed;
        School: Your University
        Student: Nico
        Report Date: 15 Jun 2017

        Subject: Physic, Grade: A, Comment: Excellent
        Subject: Mathematics, Grade: B, Comment: Improving
        Subject: Art, Grade: C, Comment: Need to improve
        Subject: Geography, Grade: D, Comment: Study more
        etc.
         */
    }
}