C# - Datatypes Questions and Answers
The C# Datatypes questions with answers section is designed for programmers preparing for interviews and coding tests. These programming questions and answers focus on understanding how data types are defined, declared, and managed in C#. Top recruiters like TCS, Wipro, and Accenture often include datatype-based MCQs to assess logical and memory management skills. By exploring C# programming interview questions with answers, candidates can strengthen their foundational knowledge of variables, value types, reference types, and data conversions. This topic is ideal for learners seeking to master .NET concepts for competitive programming and job interviews.
Understand data types available in C programming. Also check C structures and C dynamic memory allocation
C# - Datatypes
1. Which of the following statements are correct about data types? If the integer literal exceeds the range of byte, a compilation error will occur. We cannot implicitly convert non-literal numeric types of larger storage size to byte. Byte cannot be implicitly converted to float. A char can be implicitly converted to only int data type. We can cast the integral character codes.
- 1, 3, 5
- 2, 4
- 3, 5
- 1, 2, 5
4. Which of the following statements is correct?
- Information is never lost during narrowing conversions.
- The CInteger() function can be used to convert a Single to an Integer.
- Widening conversions take place automatically.
- Assigning an Integer to an Object type is known as Unboxing.
5. Which of the following are value types? Integer Array Single String Long
- 1, 2, 5
- 1, 3, 5
- 2, 4
- 3, 5
8. What will be the output of the following code snippet when it is executed? int x = 1; floaty = 1.1f; short z = 1; Console.Write.Line((float) x + y * z - (x += (short) y));
- 0.1
- 1.0
- 1.1
- 11
9. Which of the following statements is correct about the C#.NET code snippet given below? short s1 = 20; short s2 = 400; int a; a = s1 * s2;
- A value 8000 will be assigned to a.
- A negative value will be assigned to a.
- During arithmetic if the result exceeds the high or low value of the range the value wraps around till the other side of the range.
- An error is reported as widening conversion cannot takes place.
10. Which of the following is the correct size of a Decimal datatype?
- 8 Bytes
- 4 Bytes
- 10 Bytes
- 16 Bytes