Structures vs Classes in Programming

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What does the 'using System;' statement in C# signify?

Including the System namespace in the program (correct)
Declaring a variable named System
Assigning a value to a variable from the System namespace
Defining a function related to the System namespace

Which of the following are valid C# value types?

short, int, double
ushort, float, long
byte, int, decimal (correct)
sbyte, ushort, ulong

What is a characteristic of C# reference types?

Contain data directly
Contain references to objects (correct)
Cannot be null
Do not allow inheritance

Which C# type is used to represent a single Unicode character?

char (B) Signup and view all the answers

What is the purpose of the 'delegate' keyword in C#?

Create a reference to a method (B) Signup and view all the answers

What is the primary role of namespaces in C# programming?

Organize classes into modules (B) Signup and view all the answers

What is a key difference between Structures and Classes in C#?

Structures cannot be abstract, while Classes can be abstract (D) Signup and view all the answers

Which statement regarding memory overhead is accurate when comparing Structures and Classes in C#?

Structures have no memory overhead as they are value types, while Classes have memory overhead as they are reference types (D) Signup and view all the answers

What is a common characteristic of Fields and Methods within a Class in C#?

Fields and Methods are often referred to as 'Class Members' (C) Signup and view all the answers

Which access modifier in C# makes the code accessible for all classes?

public (D) Signup and view all the answers

When creating an object of a Class in C#, what is used to initialize its values?

Constructor (D) Signup and view all the answers

Why can Structures not have a destructor in C#?

Structures are value types and do not require explicit memory management like destructors (B) Signup and view all the answers

What is the default access modifier for class members in C# if no access modifier is specified?

Private (A) Signup and view all the answers

Which concept in C# focuses on hiding sensitive data from users?

Encapsulation (D) Signup and view all the answers

What is the purpose of providing get and set methods in C# properties?

To achieve encapsulation (B) Signup and view all the answers

Which category does a class belong to if it inherits fields and methods from another class in C#?

Derived Class (C) Signup and view all the answers

What does using the : symbol signify in C#?

Inheritance (B) Signup and view all the answers

How does encapsulation in C# contribute to code maintenance?

By reducing the possibility of code errors (D) Signup and view all the answers

What is a key difference in memory allocation between structs and classes in C#?

Structs are allocated on the stack, while classes are allocated on the heap (A) Signup and view all the answers

Which type, struct or class, is more suitable for light weight objects in C#?

Structs (D) Signup and view all the answers

What is a characteristic of member access in structs and classes?

Classes allow public, protected, internal, and private access modifiers, while structs only allow public access (C) Signup and view all the answers

Which of the following is NOT a benefit of using structs over classes in C#?

Faster execution speed compared to classes (A) Signup and view all the answers

What type of inheritance is supported by classes but not by structs in C#?

Multiple inheritance (B) Signup and view all the answers

Which term best describes how data is assigned in structs compared to classes in C#?

Copies data (B) Signup and view all the answers