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C# Namespace Aptitude Questions and Answers | Set 5

C# Namespace Aptitude Questions | Set 5: This section contains aptitude questions and answers on C# Namespace.
Submitted by Nidhi, on April 08, 2020

1) What is the correct output of the given code snippet?

using System;
using my_namespace2.my_namespace1;

namespace my_namespace2
{

    namespace my_namespace1
    {
        class sample
        {
            public static void sayHello()
            {
                Console.WriteLine("Hello");
            }
        }
    }

    class program
    {
        static void Main(string[] args)
        {
            sample.sayHello();
        }
    }
}

Answer & Explanation

2) What is the correct output of the given code snippet?

using System;

namespace my_namespace2
{
    using my_namespace2.my_namespace1;
    namespace my_namespace1
    {
        class sample
        {
            public static void sayHello()
            {
                Console.WriteLine("Hello");
            }
        }
    }

    class program
    {
        static void Main(string[] args)
        {
            sample.sayHello();
        }
    }
}

Answer & Explanation

3) What is the correct output of the given code snippet?

using System;

namespace my_namespace2
{
    namespace my_namespace1
    {
        class sample
        {
            public static void sayHello()
            {
                Console.WriteLine("Hello");
            }
        }
    }

    class program
    {
        static void Main(string[] args)
        {
            sample.sayHello();
        }
    }
}

Answer & Explanation

Correct answer: 1
Syntax error

We cannot use using statement at the bottom of our program.

The output would be,

    The name `sample' does not exist in the current context

4) What is the correct output of the given code snippet?

using System;

namespace my_namespace2
{
    namespace my_namespace1
    {
        class sample
        {
            public static void sayHello()
            {
                Console.WriteLine("Hello");
            }
        }
    }

    class program
    {
        static void Main(string[] args)
        {
            my_namespace1::sample.sayHello();
        }
    }
}

Answer & Explanation

Correct answer: 1
Syntax error

We cannot use a namespace with :: in C#.NET.

The output will be,

    Alias `my_namespace1' not found

5) In C#.NET, is it possible that we can create a class with the same name in different namespaces?

Answer & Explanation

C# Namespace Aptitude Questions | Set 4

C# Structures Aptitude Questions | Set 1

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