/*
* Marking the class field public and exposing to the external world is bad.
* As you will not have control over what get assigned and get returned. Example id of student can't be negative.
*/
static void Main(string[] args)
{
/*
* Here we can assign any garbage value to the class fields. Which is wrong.
*/
Student s1 = new Student();
s1.id = -1;
s1.name = null;
s1.passMarks = 0;
Console.WriteLine(" Id = {0}, Name = {1}, Pass marks = {2}", s1.id, s1.name, s1.passMarks);
SchoolStudent ss = new SchoolStudent();
// ss.SetId(-1); This will throw exception.
// ss.SetName(null); This will throw exception.
ss.SetId(01);
ss.SetName("Anand Dev");
Console.WriteLine(" Id = {0}, Name = {1}, Pass marks = {2}", ss.GetId(), ss.GetName(), ss.GetPassMarks());
}
/*
* Marking the class field public and exposing to the external world is bad.
* As you will not have control over what get assigned and get returned. Example id of student can't be negative.
*/
static void Main(string[] args)
{
/*
* Here we can assign any garbage value to the class fields. Which is wrong.
*/
Student s1 = new Student();
s1.id = -1;
s1.name = null;
s1.passMarks = 0;
Console.WriteLine(" Id = {0}, Name = {1}, Pass marks = {2}", s1.id, s1.name, s1.passMarks);
SchoolStudent ss = new SchoolStudent();
// ss.SetId(-1); This will throw exception.
// ss.SetName(null); This will throw exception.
ss.SetId(01);
ss.SetName("Anand Dev");
Console.WriteLine(" Id = {0}, Name = {1}, Pass marks = {2}", ss.GetId(), ss.GetName(), ss.GetPassMarks());
}
