adding

Author: ashongwe

properties1.cs

@@ -0,0 +1,65 @@
+using System;
+
+namespace Properties
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Student c1 = new Student();
+            c1.Id = 101;
+            c1.Name = "Seefeesaw";
+
+
+            //Console.WriteLine("ID = {0] && nMAE = {1} && pASSmARK = {2}",c1.ID,c1.Name,c1.PasssMark);
+            Console.WriteLine("Student id = {0} Name = {1}",c1.Id, c1.Name);
+
+        }
+    }
+    public class Student
+    {
+        private int _id;
+        private string _name;
+        private int _passsMark;
+
+        public int PassMark
+        {
+            get
+            {
+                return this._passsMark;
+            }
+        }
+        public string Name
+        {
+            set
+            {
+                if (string.IsNullOrEmpty(value))
+                {
+                    throw new Exception("Name cannot be null or empty");
+                }
+                this._name = value;
+            }
+            get
+            {
+                return string.IsNullOrEmpty(this._name) ? "No name" : this._name;
+            }
+        }
+        public int Id
+        {
+            set
+            {
+                if (value <= 0)
+                {
+                    throw new Exception("Student Id cannot be negative");
+                }
+                this._id = value;
+            }
+            get
+            {
+                return this._id;
+            }
+        }
+       
+    }
+}
+