Learn C# .Net MCQs
Prepare C# .Net MCQs (Multiple choice Questions) for exam and job interviews.
What is the output of Console.WriteLine("CSharp".Remove(2, 2));?
1) CSp
2) CSharp
3) C#
4) None of the above
Answer : CSp
Which of the following is used to remove the first element of a list in C#?
1) RemoveAt(0)
2) RemoveFirst()
3) RemoveStart()
4) None of the above
Answer : RemoveAt(0)
What is the output of Console.WriteLine(5 <= 5);?
1) true
2) false
3) Error
4) None of the above
Answer : true
Which of the following is used to reverse an array in C#?
1) Array.Reverse()
2) Reverse()
3) Flip()
4) None of the above
Answer : Array.Reverse()
Which of the following is used to convert a string to a character array in C#?
1) ToCharArray()
2) CharArray()
3) SplitChars()
4) None of the above
Answer : ToCharArray()
What is the output of Console.WriteLine(5 < 2);?
1) false
2) true
3) Error
4) None of the above
Answer : false
Which of the following is used to handle multiple exceptions in C#?
1) try-catch
2) try-catch-finally
3) if-else
4) None of the above
Answer : try-catch-finally
What is the output of Console.WriteLine(Math.Floor(3.7));?
1) 3
2) 4
3) Error
4) None of the above
Answer : 3
Which of the following is used to get the length of an array in C#?
1) Length
2) Size
3) Count
4) None of the above
Answer : Length
Which of the following is true about the "readonly" keyword in C#?
1) It prevents modification of fields.
2) It prevents instantiation of a class.
3) It is used for method overriding.
4) None of the above
Answer : It prevents modification of fields.