Lab - 10 Write a c# program to prepend the namespace name by calling the namespaceenabled version of either function or variable?

Transcription

1 Lab - 10 Write a c# program to prepend the namespace name by calling the namespaceenabled version of either function or variable? namespace first_space class namespace_cl Console.WriteLine("Inside first_space"); namespace second_space class namespace_cl Console.WriteLine("Inside second_space"); class TestClass static void Main(string[] args)

2 first_space.namespace_cl fc = new first_space.namespace_cl(); second_space.namespace_cl sc = new second_space.namespace_cl(); fc.func(); sc.func(); Console.ReadKey(); Write a c# program to avoid prepending of namespace with the USING namespace directive? using first_space; using second_space; namespace first_space class abc Console.WriteLine("Inside first_space"); namespace second_space class efg

3 Console.WriteLine("Inside second_space"); class TestClass static void Main(string[] args) abc fc = new abc(); efg sc = new efg(); fc.func(); sc.func(); Console.ReadKey();

4 Write a C# program to demonstrate nested namespaces? using first_space; using first_space.second_space; namespace first_space class abc Console.WriteLine("Inside first_space"); namespace second_space class efg Console.WriteLine("Inside second_space"); class TestClass

5 static void Main(string[] args) abc fc = new abc(); efg sc = new efg(); fc.func(); sc.func(); Console.ReadKey();

6 Lab 11 Write a C# Program to demonstrate Structure? struct Books public string title; public string author; public string subject; public int book_id; ; public class teststructure public static void Main(string[] args) Books Book1; /* Declare Book1 of type Book */ Books Book2; /* Declare Book2 of type Book */ /* book 1 specification */ Book1.title = "C Programming"; Book1.author = "Nuha Ali"; Book1.subject = "C Programming Tutorial"; Book1.book_id = ; /* book 2 specification */ Book2.title = "Telecom Billing";

7 Book2.author = "Zara Ali"; Book2.subject = "Telecom Billing Tutorial"; Book2.book_id = ; /* print Book1 info */ Console.WriteLine( "Book 1 title : 0", Book1.title); Console.WriteLine("Book 1 author : 0", Book1.author); Console.WriteLine("Book 1 subject : 0", Book1.subject); Console.WriteLine("Book 1 book_id :0", Book1.book_id); /* print Book2 info */ Console.WriteLine("Book 2 title : 0", Book2.title); Console.WriteLine("Book 2 author : 0", Book2.author); Console.WriteLine("Book 2 subject : 0", Book2.subject); Console.WriteLine("Book 2 book_id : 0", Book2.book_id); Console.ReadKey();

8 Write a C# Program to demonstrate structure with methods? struct Books private string title; private string author; private string subject; private int book_id; public void getvalues(string t, string a, string s, int id) title = t; author = a; subject = s; book_id = id; public void display() Console.WriteLine("Title : 0", title); Console.WriteLine("Author : 0", author); Console.WriteLine("Subject : 0", subject); Console.WriteLine("Book_id :0", book_id); ; public class teststructure

9 public static void Main(string[] args) Books Book1 = new Books(); /* Declare Book1 of type Book */ Books Book2 = new Books(); /* Declare Book2 of type Book */ /* book 1 specification */ Book1.getValues("C Programming", "Nuha Ali", "C Programming Tutorial", ); /* book 2 specification */ Book2.getValues("Telecom Billing", "Zara Ali", "Telecom Billing Tutorial", ); /* print Book1 info */ Book1.display(); /* print Book2 info */ Book2.display(); Console.ReadKey();

10 Write a C# Program to demonstrate Boxing Conversion? Using System; class TestBoxing static void Main() int i = 123; // Boxing copies the value of i into object o. object o = i; // Change the value of i. i = 456; // The change in i does not effect the value stored in o. System.Console.WriteLine("The value-type value = 0", i); System.Console.WriteLine("The object-type value = 0", o);

11 Write a C# Program to demonstrate Unboxing Conversion? class TestUnboxing static void Main() int i = 123; object o = i; // implicit boxing try int j = (int) o; // attempt to unbox System.Console.WriteLine("Unboxing OK."); catch (System.InvalidCastException e) System.Console.WriteLine("0 Error: Incorrect unboxing.", e.message);