Tech Point Fundamentals

C# Interview Questions and Answers

All C# Interview QA Videos Playlist





What are Extension Methods in C#?





What is the use of the yield keyword in C#?





What is the use of the volatile keyword in C#?



What is the difference between == and .Equals() method Comparison in C#?





What is the difference between Typeof and GetType() in C#?





What is the difference between 'IS' and 'AS' operators in C#?





What is the difference between Boxing and Unboxing in C#?



What is the difference between Conversion, Casting and Parsing in C#?





What is the Constructor Execution Sequence Order in C#?





What is the difference between const and readonly in C#?





What is the difference between String and StringBuilder() in C#?



What is the difference between String.IsNullOrEmpty() and String.IsNullOrWhiteSpace() in C#?





How the .Net Framework handles Fragile Base Class Problem?





Why Composition is immune to Fragile Base Class Problem?





What is the Fragile Base Class Problem in C#?





What is the difference between ToString() and Convert.ToString() in C#?





REF Parameter vs OUT Parameter vs IN Parameter C# in C#?





What will happen if finally block throws an exception in C#?





What is the difference between throw and throw ex in C#?





Try without Catch Block | Multiple Catch Block | Multiple Finally Block





What is the difference between String and string in C#?





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