Add code for University Subjects

Author: thecodeholic

.gitignore

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+.idea

University_Subjects/AbstractUniversity.php

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+<?php
+/**
+ * User: TheCodeholic
+ * Date: 4/8/2020
+ * Time: 10:17 PM
+ */
+
+/**
+ * Class AbstractUniversity
+ */
+abstract class AbstractUniversity
+{
+    /**
+     * @var Subject[]
+     */
+    public $subjects = [];
+
+    /**
+     * Method accepts the name and code of the Subject, creates instance of the class,
+     * adds the instance in $subjects array and returns created instance
+     *
+     * @param string $code
+     * @param string $name
+     * @return Subject
+     */
+    abstract public function addSubject(string $code, string $name): Subject;
+
+    /**
+     * Method accepts subject code and Student. Finds subject in $subjects array based on code and adds student to its array.
+     *
+     * @param string   $subjectCode
+     * @param \Student $student
+     * @return mixed
+     */
+    abstract public function addStudentOnSubject(string $subjectCode, Student $student);
+
+    /**
+     * Method returns students for given subject
+     *
+     * @param string $subjectCode
+     * @return mixed
+     */
+    abstract public function getStudentsForSubject(string $subjectCode);
+
+    /**
+     * This method returns number of total students registered on all subjects
+     *
+     * @return int
+     */
+    abstract public function getNumberOfStudents(): int;
+
+    /**
+     * Method must iterate over $subjects, print the subject name then "-" 25 times,
+     * then iterate over students of the subject and print student name and student number in format
+     * StudentName - StudentNumber
+     * Student2Name - Student2Number
+     *
+     * @return mixed
+     */
+    abstract public function print();
+}

University_Subjects/Student.php

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+<?php
+/**
+ * User: TheCodeholic
+ * Date: 4/8/2020
+ * Time: 10:40 PM
+ */
+
+/**
+ * Class Student
+ */
+class Student
+{
+    public string $name;
+    public string $studentNumber;
+
+    // TODO Generate getters and setters for both arguments
+    // TODO Generate constructor with both arguments.
+}

University_Subjects/Subject.php

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+<?php
+/**
+ * User: TheCodeholic
+ * Date: 4/8/2020
+ * Time: 10:16 PM
+ */
+
+/**
+ * Class Subject
+ */
+class Subject
+{
+    public $code;
+    public $name;
+    /**
+     * @var Student[]
+     */
+    public $students = [] ;
+
+    // TODO Generate getters and setters
+    // TODO Generate constructor for all attributes. $students argument of the constructor can be empty
+
+    /**
+     * Method accepts student name and number, creates instance of the Student class, adds inside $students array
+     * and returns created instance
+     *
+     * @param string $name
+     * @param string $studentNumber
+     * @return \Student
+     */
+    public function addStudent(string $name, string $studentNumber): Student
+    {
+        // TODO Implement method according to method annotation
+    }
+}

University_Subjects/University.php

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+<?php
+require_once "AbstractUniversity.php";
+
+/**
+ * Class University
+ */
+class University extends AbstractUniversity
+{
+    // TODO Implement all the methods declared in parent
+}

University_Subjects/index.php

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+<?php
+
+require_once "Student.php";
+require_once "Subject.php";
+require_once "University.php";
+
+$university = new University();
+$subject = $university->addSubject('112', 'Web II');
+$subject->addStudent('George', '123');
+$subject->addStudent("Mary", '234');
+$university->addStudentOnSubject('112', new Student('David', '345'));
+
+$subject2 = $university->addSubject('113', 'Web III');
+$subject2->addStudent('Bob', '456');
+$subject2->addStudent('Brad', '567');
+
+echo $university->getNumberOfStudents(); // This must print 5, because we totally added 5 students in different subjects
+
+/**
+ * This method must print all subjects and for each subject all students registered on the subject int the following format
+ *
+ * SubjectCode - SubjectName
+ * -------------------------
+ * StudentName - StudentNumber
+ * Student2Name - Student2Number
+ * ... // and so on...
+ *
+ * Subject2Code - Subject2Name
+ * --------------------
+ * StudentName - StudentNumber
+ * Student2Name - Student2Number
+ * ... // and so on...
+ */
+$university->print();
+// Example
+/*
+112 - Web II
+--------------------
+George - 123
+Mary - 234
+David - 345
+
+113 - Web III
+--------------------
+Bob - 456
+Brad - 567
+*/