static void Main(string[] args)
{
string input = "1";
while (input != "0")
{
Console.WriteLine("Welcome :) Press 1 to 8 for general practices and 0 to Close");
input = Console.ReadLine();
if (input == "1")
{
int dd = 0, mm = 0, yy = 0;
int total = 2;
Console.Write("\n\nCreate a nested struct and store data in an array :\n");
Console.Write("-------------------------------------------------------\n");
employee[] emp = new employee[total];
for (int i = 0; i < total; i++)
{
Console.Write("Name of the employee : ");
string nm = Console.ReadLine();
emp[i].eName = nm;
Console.Write("Input day of the birth : ");
dd = Convert.ToInt32(Console.ReadLine());
emp[i].Date.Day = dd;
Console.Write("Input month of the birth : ");
mm = Convert.ToInt32(Console.ReadLine());
emp[i].Date.Month = mm;
Console.Write("Input year for the birth : ");
yy = Convert.ToInt32(Console.ReadLine());
Console.WriteLine();
emp[i].Date.Year = yy;
}
}
if (input == "2")
{
Console.Write("\n\nCreate a structure and Assign the Value and call it :\n");
Console.Write("---------------------------------------------------------\n");
aNewClass ClassNum1 = new aNewClass();
ClassNum1.x = 75;
ClassNum1.y = 95;
// ClassNum2 is ClassNum1 type
aNewClass ClassNum2 = ClassNum1;
ClassNum1.x = 7500;
ClassNum1.y = 9500;
Console.WriteLine("\nAssign in Class: x:{0}, y:{1}", ClassNum2.x, ClassNum2.y);
aNewStruc StrucNum1 = new aNewStruc();
StrucNum1.x = 750;
StrucNum1.y = 950;
// StrucNum2 is StrucNum1 type
aNewStruc StrucNum2 = StrucNum1;
StrucNum1.x = 75;
StrucNum1.y = 95;
Console.WriteLine("Assign in Structure: x:{0}, y:{1}\n\n", StrucNum2.x, StrucNum2.y);
}
if (input == "3")
{
Console.Write("\n\nWhen a struct and a class instance is passed to a method :\n");
Console.Write("--------------------------------------------------------------\n");
newStruct ns = new newStruct();
newClass nc = new newClass();
ns.n = 5;
nc.n = 5;
//value of the struct field did not changed by passing its instance
//because a copy of the struct was passed to the trackStruct method
trackStruct(ns);
//value of the class field changed by passing its instance
//because a reference to the class was passed to the tracClass method
tracClass(nc);
Console.WriteLine("\nns.n = {0}", ns.n);
Console.WriteLine("nc.n = {0}\n", nc.n);
}
if (input == "4")
{
Console.Write("\n\nMethod that returns a structure :\n");
Console.Write("--------------------------------------\n");
var Sqre = new Square();
Sqre.newSquare();
Console.WriteLine();
Console.WriteLine("Perimeter and Area of the square :");
Console.WriteLine("Length: {0}", Sqre.Length.Value);
Console.WriteLine("Breadth: {0}", Sqre.Breadth.Value);
Console.WriteLine("Perimeter: {0}", (Sqre.Length.Value + Sqre.Breadth.Value) * 2);
Console.WriteLine("Area: {0}\n", Sqre.Length.Value * Sqre.Breadth.Value);
}
}
}
public static void tracClass(newClass cl)
{
cl.n = 8;
}
