C# - Structures Questions and Answers
C# Structures programming questions and answers help learners understand value types and memory management in .NET. Structures in C# are lightweight data types that store related data efficiently without the overhead of classes. Companies like Infosys, HCL, and TCS often include structure-related questions in interviews to test programming fundamentals. Practicing programming interview questions with answers based on structures allows candidates to learn syntax, constructors, field declarations, and performance differences compared to classes. Mastering structures improves understanding of memory optimization and efficient coding—vital skills for software developers and interview aspirants.
Study structures and unions in C programming. Pair this with data types and dynamic memory allocation
C# - Structures
11. Which of the following statements is correct?
- A struct never declares a default constructor.
- All value types in C# inherently derive from ValueType, which inherits from Objec
- All value types in C# inherently derive from ValueType, which inherits from Object.
- A struct never declares a default destructor.
12. Which of the following statements are correct about the structure declaration given below? struct Book { private String name; protected int totalpages; public Single price; public void Showdata() { Console.WriteLine(name + " " + totalpages + " " + price); } Book() { name = " "; totalpages = 0; price = 0.0f; } } Book b = new Book(); We cannot declare the access modifier of totalpages as protected. We cannot declare the access modifier of name as private. We cannot define a zero-argument constructor inside a structure. We cannot declare the access modifier of price as public. We can define a Showdata() method inside a structure.
- 1, 2
- 1, 3, 5
- 2, 4
- 3, 4, 5
13. Which of the following are true about classes and struct? A class is a reference type, whereas a struct is a value type. Objects are created using new, whereas structure variables can be created either using new or without using new. A structure variable will always be created slower than an object. A structure variable will die when it goes out of scope. An object will die when it goes out of scope.
- 1, 2, 4
- 3, 5
- 2, 4
- 3, 4, 5
14. Which of the following statements are correct about Structures used in C#.NET? A Structure can be declared within a procedure. Structs can implement an interface but they cannot inherit from another struct. struct members cannot be declared as protected. A Structure can be empty. It is an error to initialize an instance field in a struct.
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- 2, 3, 5
- 2, 4
- 1, 3