HW week2 day4 classes/Rahaf Nasser

src/main/kotlin/Main.kt

@@ -1,6 +1,123 @@
 fun main(args: Array<String>) {
+    println("-------------Case1--------------")
+    var math = Course("Math")
+    math.number_of_lectures = 7
+    var professorMohamed = Professor("Mohamed", "Zamel", "0599999999")
+    if (math.assignProfessor(professorMohamed))
+        println("added the professor successfully")
+    professorMohamed.courses.add("Math")
+    if (math.students.add(Student("Rahaf", "Nasser")))
+        println("added the student successfully")
+    //println("Professor name: ${math.professorName()}")
+    println("About the course:\n${math.courseInfo()}")
 
-    // write your code here
+    println("-------------Case2--------------")
 
+    var kotlin = Course("Kotlin")
+    kotlin.number_of_lectures = 10
+    var professorHussain = Professor("Hussain", "Alsadun", "0599999999")
+    if (kotlin.assignProfessor(professorHussain))
+        println("added the professor successfully")
+    if (kotlin.assignProfessor(professorMohamed))
+        println("added the professor successfully")
+    if (kotlin.students.add(Student("Rahaf", "Nasser")))
+        println("added the student successfully")
+    if (kotlin.students.add(Student("Foton", "Nasser")))
+        println("added the student successfully")
+    println("Professor name: ${kotlin.professorName()}")
+    println("About the course:\n${kotlin.courseInfo()}")
+}
 
+/*Attributes: CourseName, number_of_lectures, students, professor.
+Methods:
+int numberOfStudents()
+boolean assignProfessor(Professor p) // assign professor to course. Course can have only one professor.
+string professorName() // return professor full name
+boolean enroll(Student s) // assign student to this course. Student can’t be enrolled to a course if the course has 20 studens
+string courseInfo() // return the course name number of lectures professor and students*/
+class Course(var courseName: String) {
+    var number_of_lectures: Int = 0
+        set(value) {
+            if (value > 0) field = value else println("Enter a valid number")
+        }
+    var students = mutableListOf<Student>()
+    var professor: Professor = Professor()
+    var flag = false
+
+    fun numberOfStudents(): Int {
+        return students.size
+    }
+
+    fun assignProfessor(p: Professor): Boolean {
+        return if (!flag && p.firstName != professor.firstName) {
+            this.professor = p
+            this.professor.courses.add(this.courseName)
+            this.flag = true
+            true
+        } else {
+            println("Can't assign the professor ${p.fullName()}, there is Professor ${this.professor.fullName()}!")
+            false
+        }
+    }
+
+    fun professorName(): String {
+        return this.professor.fullName()
+    }
+
+    fun enroll(s: Student): Boolean {
+        return if (this.students.size <= 20 && !this.students.contains(s)) {
+            this.students.add(s)
+            s.courses.add(this.courseName)
+            true
+        } else {
+            println("Student can’t be enrolled")
+            false
+        }
+    }
+
+    fun courseInfo(): String {
+        return "Name of course: ${this.courseName} \nNumber of lectures: ${this.number_of_lectures}\nName of professor: ${professor.fullName()}\nNumber of the students: ${numberOfStudents()}\nName of students:  ${printStudentList()}"
+    }
+
+    fun printStudentList(): String {
+        var nameOfStu = ""
+        for (i in 0 until students.size - 1) {
+            nameOfStu += "${i + 1}-${students[i].fullName()} ,"
+        }
+        nameOfStu += "${students.size}-${students[students.size - 1].fullName()}"
+        return nameOfStu
+    }
+}
+
+/*Attributes: firstName, lastName, telephone, courses.
+Methods: String fullName() // return “firstName lastName”*/
+class Professor() {
+    var firstName: String = ""
+    var lastName: String = ""
+    var telephone = ""
+        set(value) {
+            if (value.length == 10) field = value else println("Enter a valid number")
+        }
+    var courses = mutableListOf<String>()
+
+    constructor(firstName: String, lastName: String, telephone: String) : this() {
+        this.firstName = firstName
+        this.lastName = lastName
+        this.telephone = telephone
+    }
+
+    fun fullName(): String {
+        return "${this.firstName} ${this.lastName}"
+    }
+
+}
+
+/*Attributes: firstName, lastName, courses.
+Methods: String fullName() // return “firstName lastName”*/
+class Student(var firstName: String, var lastName: String) {
+    var courses = mutableListOf<String>()
+
+    fun fullName(): String {
+        return "${this.firstName} ${this.lastName}"
+    }
 }