Find the output of C#.Net programs | Namespace | Set 1: Enhance the knowledge of C#.Net Namespace concepts by solving and finding the output of some C#.Net programs.
Question 1:
using System;
namespace MyNameSpace
{
class A
{
public static int Num1;
public static int Num2;
}
}
class Program
{
//Entry point of the program
static void Main(string[] args)
{
int C = 0;
MyNameSpace.A.Num1 = 10;
MyNameSpace.A.Num2 = 20;
C = MyNameSpace.A.Num1 + MyNameSpace.A.Num2;
Console.WriteLine("C : {0}", C);
}
}
Question 2:
using System;
namespace MyNameSpace
{
class A
{
public static int Num1;
public static int Num2;
}
}
class Program
{
//Entry point of the program
static void Main(string[] args)
{
int C = 0;
MyNameSpace::A.Num1 = 10;
MyNameSpace::A.Num2 = 20;
C = MyNameSpace::A.Num1 + MyNameSpace::A.Num2;
Console.WriteLine("C : {0}", C);
}
}
Question 3:
using System;
namespace MyNameSpace
{
class A
{
public static int Num;
}
namespace Nested
{
class A
{
public static int Num;
}
}
}
class Program
{
//Entry point of the program
static void Main(string[] args)
{
int C = 0;
MyNameSpace.A.Num = 10;
MyNameSpace.Nested.A.Num = 20;
C = MyNameSpace.A.Num + MyNameSpace.Nested.A.Num;
Console.WriteLine("C : {0}", C);
}
}
Question 4:
using System;
namespace MyNameSpace
{
class A
{
public static int Num1;
public static int Num2;
}
public void Fun()
{
Console.WriteLine("Hello Word");
}
}
class Program
{
//Entry point of the program
static void Main(string[] args)
{
int C = 0;
MyNameSpace.A.Num1 = 10;
MyNameSpace.A.Num2 = 20;
C = MyNameSpace.A.Num1 + MyNameSpace.A.Num2;
MyNameSpace.Fun();
Console.WriteLine("C : {0}", C);
}
}
Question 5:
using System;
namespace MyNameSpace
{
class A
{
public static int Num;
}
struct Str
{
static int Num;
}
}
class Program
{
//Entry point of the program
static void Main(string[] args)
{
int C = 0;
MyNameSpace.A.Num = 10;
MyNameSpace.Str.Num = 20;
C = MyNameSpace.A.Num + MyNameSpace.Str.Num;
Console.WriteLine("C : {0}", C);
}
}
c# programming
Answer 1:
Output:
Explanation:
In the above program, we created a namespace MyNameSpace that contains a class A, and class A contains two public integer variables Num1 and Num2.
Now look to the Program class that contains the Main() method. Here, we created a local variable C and initialized Num1 and Num2 with 10 and 20 respectively. Then add values of Num1 and Num2 and assigned to variable C and then print the value of C on the screen.
Answer 2:
Output:
Explanation:
The above program will generate syntax errors because, in the above program, we used "::" operator to access members of the namespace, which is not correct, we need to use dot '.' operator to access members of the namespace in C#.
Answer 3:
Output:
Explanation:
In the above program, we created a namespace MyNameSpace that contains a class A, and a namespace nested. class A contains a public integer variable Num in both namespaces MyNameSpace and Nested.
Now look to the Program class that contains the Main() method. Here, we created a local variable C.
MyNameSpace.A.Num = 10; MyNameSpace.Nested.A.Num = 20;Here, we initialized values of class members that contained in the namespaces,
C = MyNameSpace.A.Num + MyNameSpace.Nested.A.Num;Add values of data members and assigned to local variable C, and printed the value of C on the console screen.
Answer 4:
Output:
main.cs(11,11): error CS1525: Unexpected symbol `void', expecting `class', `delegate', `enum', `interface', `partial', or `struct' main.cs(13,8): error CS1525: Unexpected symbol `Console', expecting `class', `delegate', `enum', `interface', `partial', or `struct' main.cs(13,25): error CS1525: Unexpected symbol `(', expecting `class', `delegate', `enum', `interface', `partial', or `struct' main.cs(14,5): error CS1514: Unexpected symbol `}', expecting `.' or `{'Explanation:
The above program will generate a compile-time error because we cannot contain a method in the namespace directly, here namespace MyNameSpace contains Fun() method, which is not correct.
Answer 5:
Output:
Explanation:
The above program will generate syntax errors because the structure STR contains private member Num that cannot be accessed outside the structure directly.
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