using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StudentRegistration
{
class Course
{
   private string courseNum;
   private string courseName;
   private string description;
   private int cost;
   private string prerequisite;
   private string createdBy;
   private string createdDate;
   private string modifiedBy;
   private string modifiedDate;

   /// <summary>
   /// contructor
   /// </summary>
   /// <param name="courseNum"></param>
   /// <param name="courseName"></param>
   /// <param name="description"></param>
   /// <param name="cost"></param>
   /// <param name="prerequisite"></param>
   /// <param name="createdBy"></param>
   /// <param name="createdDate"></param>
   /// <param name="modifiedBy"></param>
   /// <param name="modifiedDate"></param>
   public Course(string courseNum, string courseName, string description,
         int cost, string prerequisite, string createdBy, string createdDate,
         string modifiedBy, string modifiedDate)
   {
         this.courseNum = courseNum;
         this.courseName = courseName;
         this.description = description;
         this.cost = cost;
         this.prerequisite = prerequisite;
         this.createdBy = createdBy;
         this.createdDate = createdDate;
         this.modifiedBy = modifiedBy;
         this.modifiedDate = modifiedDate;
   }

   public string CourseNum
   {
         get
         {
            return courseNum;
         }
         set
         {
            courseNum = value;
         }
   }
   public string CourseName
   {
         get
         {
            return courseName;
         }
         set
         {
            courseName = value;
         }
   }
   public string Description
   {
         get
         {
            return description;
         }
         set
         {
            description = value;
         }
   }

Q2 Matrix transpose: m2[i][j] = m1[j][i], i=0,â€¦.,n-1, j=0,â€¦,n...