Lamia w2 d4

src/main/kotlin/Main.kt

@@ -1,6 +1,96 @@
 fun main(args: Array<String>) {
 
-    // write your code here
+    println("--------------Student--------------")
+    var FStudent = Student()
+    FStudent.firstName="Lamia"
+    FStudent.lastName="Omar"
+    FStudent.courses="Kotlin"
+    println(FStudent.fullName())
 
+    println("-------------Professor---------------")
+
+    var FProfessor = Professor()
+    FProfessor.firstName="Hussain"
+    FProfessor.lastName="Mohamed"
+    FProfessor.courses="Kotlin"
+    FProfessor.telephone="055555555"
+    println(FProfessor.fullName())
+
+    println("-------------Course---------------")
+
+    var FCourse = Course("Husaain Mohammed","Kotlin")
+    FCourse.number_of_lectures=25
+
+//print the number of student
+    FCourse.students=14
+    FCourse.numberOfStudents()
+
+// assign professor to course. Course can have only one professor
+    FCourse.assignProfessor(FProfessor)
+    println(FCourse.listOfProfessor)
+    FCourse.assignProfessor(FProfessor)
+
+// return the course name number of lectures professor and students
+    FCourse.courseInfo()
+   println(FCourse.ProfessorFullName)
+
+// assign student to this course. Student can’t be enrolled to a course if the course has 20 studens
+    FCourse.enroll("Reem")
+}
+
+
+
+class Course(var ProfessorFullName :String ,  var CourseName :String){
+
+    var number_of_lectures : Int = 0
+    var students : Int= 0
+    var listOfProfessor = mutableListOf<String>()
+    var listOfStudent= mutableListOf<String>()
+
+    fun numberOfStudents(){ println(students) }
+
+// assign professor to course. Course can have only one professor.
+    fun  assignProfessor(professorName: Professor) {
+       if (listOfProfessor.size==0){  listOfProfessor.add("$professorName")}
+        else   println("The course already have a professor") }
+
+// return professor full name
+    fun professorName(): String {
+     return ProfessorFullName
+    }
+
+// assign student to this course. Student can’t be enrolled to a course if the course has 20 studens
+    fun enroll (studentName :String ){
+        if (listOfStudent.size>=21){ println("Sorry the course have the maximum num of student ")}
+        else  listOfProfessor.add(studentName) }
+
+// return the course name number of lectures professor and students
+    fun courseInfo(){
+        println("The course name is $CourseName - the number of lectures $number_of_lectures" +
+                "- the professor is $listOfProfessor - number of student is $students")
+    }
+
+}
+
+
+class Professor(){
+   var firstName:String=""
+    var lastName:String=""
+    var telephone:String=""
+    var  courses:String=""
+
+    fun  fullName(){
+        println("$firstName   $lastName") }
+
+}
+
+class Student(){
+    var firstName:String=""
+    var lastName:String=""
+    var  courses:String=""
+
+    fun  fullName(){
+        println("$firstName   $lastName"  ) }
+
+ }
 
-}