>>>>>>>>>>>>>>>Programing C#,<<<<<<<<<<<<<<<<<<< Create a Student class. Do foll

Question

>>>>>>>>>>>>>>>Programing C#,<<<<<<<<<<<<<<<<<<<

Create a Student class. Do followings in Student class.

Declare these data members:
1. a static int Count.

2. a private static readonly Random variable rnd.

                   private static readonly Random rnd = new Random();

3. private string firstName, lastName, int sID, create public properties for these three data members.

4. Two constructors
    a). Constructor 1: public Student(string first , string last , int id)
        ----this constructor set values for firstName, lastName, sID, and increase Count value by 1.

    b). Constructor 2: public Student(string first="", string last = "")
        ----This constructor set values for firstName, lastName, and increase Count value by 1.
        ----Create StudentID by calling rnd.Next(1000,9999).
        ----Note this constructor is called when
                         Student s1 = new Student();
                         Student s2 = new Student("Peter");
                         Student s3 = new Student("Morgan", "Simmons");

5. In main()
    
static void Main(string[] args)
        {
            List<Student> myList = new List<Student>();
            

            Student s1 = new Student();
            s1.FirstName = "John";
            s1.LastName = "Smith";
            s1.StudentID = 2560;
            myList.Add(s1);

            Student s2 = new Student("Peter");
            myList.Add(s2);


            Student s3 = new Student("Morgan", "Simmons");
            myList.Add(s3);

            Student s4 = new Student("James", "Walters");
            myList.Add(s4);

            Student s5 = new Student("Linda", "Scott", 1005);
            myList.Add(s5);


            Console.WriteLine();

            Console.WriteLine("Total students: {0}", Student.Count);

           //Create foreach loop to iterate through list,
           //use Console.WriteLine to display Student Name and Student ID.
            

           }

Explanation / Answer

using System;
using System.Collections.Generic;

class Student {
  
//data members
static int Count;//this stores the total number of students .this is a static variable
private static readonly Random rnd = new Random();//This a random type obj to randomly assign student id
private string firstName, lastName;////personal data
private int sID;//personal data



//getter and setter function for first name ,lastname ,sID
public void setfirstName( string fName ) {
firstName = fName;
}
  
public void setlastName( string lName ) {
lastName = lName;
}
public void setID( int id ) {
sID = id;
}

public string getfirstName() {
return firstName ;
}
  
public string getlastName() {
return lastName ;
}
public int getID( ) {
return sID ;
}

// parameterized constructor for student
public Student(string first , string last , int id)
{
//it uses setter function to assign formal arguments to data members
setfirstName(first );
setlastName(last);
setID(id);
Count++; //this increaes count value by one each time a new student obj is created
}
public Student(string first="", string last = "")//this handles when null strings are given as arguments
{

setfirstName(first);
setlastName(last);
setID(rnd.Next(1000,9999));//it sets id as a random number between 1000 to 9999
Count++;
}

static void Main(string[] args)
{
List<Student> myList = new List<Student>();//student type of list is created.
  
//s1 object is created
Student s1 = new Student();
s1.firstName = "John";
s1.lastName = "Smith";
s1.sID = 2560;
myList.Add(s1);//s1 is added to mylist
  
//constructor 2 is used
Student s2 = new Student("Peter");
myList.Add(s2);

//constructor 2 is used
Student s3 = new Student("Morgan", "Simmons");
myList.Add(s3);

//constructor 2 is used
Student s4 = new Student("James", "Walters");
myList.Add(s4);

//constructor 1 is used
Student s5 = new Student("Linda", "Scott", 1005);
myList.Add(s5);

Console.WriteLine();

Console.WriteLine("Total students: {0}", Student.Count);
for(int i=0;i<Student.Count;i++)
Console.WriteLine("student id : {0} FirstName : {1} LastName : {2} ",myList[i].getID(),myList[i].getfirstName(),myList[i].getlastName());
  
  

//Create foreach loop to iterate through list,
//use Console.WriteLine to display Student Name and Student ID.
  

}
}

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