C# Videos (85) - Page 6

c# interview questions:-Prove that only 1 instance of the object is created for static classes? 

Want to learn C# start from this video https://www.youtube.com/watch?v=yh2SrzCkNQA In this video we will try to prove that only 1 instance exists for a static class. For more such videos visit http://www.questpond.com

c# (Csharp) interview questions :- What is the use of checked and unchecked keyword ? 

Want to learn C# start from this video https://www.youtube.com/watch?v=yh2SrzCkNQA In this video we will understand what is the use of checked and unchecked keyword in c# (Csharp). For more such videos visit http://www.questpond.com

C# Generic constraints explained 

In this video we understand how we can restrict data types to generics by using generic constraints

IS vs AS Keyword ( C# Interview questions with answers) 

This is a interesting c# interview question which explains the difference between "IS" and "AS" keyword. "IS" keyword is useful to check if objects are compatible with a type while "AS" keyword helps to do conversion from one type to other type

C# interview questions on ENUM :- How to convert String to a ENUM? 

In this video we will try to understand how to convert String to a ENUM.

C# interview questions :- Explain typesafe,casting , implicit casting and explicit casting ? 

This video explains typesafe,casting , implicit casting and explicit casting .

Explain Coalescing operator (??) in C# ? C# and .NET interview questions with answers 

"??" is a NULL coalescing operator. If you see the English meaning of coalescing it says "consolidate together". Coalescing operator returns the first NON-NULL value from a chain. For example below is a simple coalescing code which chains four strings. So if "str1" is null it will try "str2" , if "str2" is null it will try "str3" and so on until it finds a string with a non-null value. string final =str1 ?? str2 ?? str3 ?? str4;

c# Fragile class problem ( .NET and c# interview question videos) 

Inheritance is a great power by which developers can increase reusability in parent-child relationship. But with great powers comes greater responsibility and also problems. One of the problems which creep's in is the "Fragile parent class problem".

What are Portable Class library in c# ? (C# and .NET interview questions) 

The whole point of creating a class library project is reusability. Now we want this reusability not only within a .NET application, not across .NET applications but across different types of .NET applications. Now different types of .NET application means WPF, Windows, Silver light, Windows phone etc. That's where portable class libraries are useful. By creating a portable class we can reference it in any kind of .NET project types.

What is NuGet ?(C# Interview questions with answers) 

In this video we try to understand need of Nuget and how to use the same.

i++ vs ++i ( c# interview questions on postfix and prefix) 

i++ :- In this scenario first the value is assigned and then increment happens. ++i :- In this scenario first the increment is done and then value is assigned.

Build Vs Rebuild Vs Clean ( c# interview questions with answers) 

In this video we will try to under Build Vs Rebuild Vs Clean solution menu. Build solution menu: - This will perform an incremental build. In other words it will only build code files which have changed. If they have not changed those files will not touched. Rebuild solution menu: - This will delete all current compiled files (i.e. exe and dll's) and will build everything from scratch, irrespective if there is code change in the file or not. Clean solution menu: - This menu will delete all compiled files (i.e. EXE's and DLL's) from "bin" / "obj" directory.