C# Interview Questions with Answers Pdf - 1
How is method overriding different from overloading?
When overriding, you change the method behavior for a derived class.
Overloading simply involves having a method with the same name within the class.
What is an abstract class?
A class that cannot be instantiated.
A concept in C++ known as pure virtual method.
A class that must be inherited and have the methods over ridden.
Essentially, it’s a blueprint for a class without any implementation.
Are private class level variables inherited?
Yes, but they are not accessible. Although they are not visible or accessible via the class interface, they are inherited.
What is the advantage of using system.Text.StringBuilder over System.String?
StringBuilder is more efficient in cases where there is a large amount of string manipulation.
Strings are immutable, so each time a string is changed, a new instance in memory is created.
What is the syntax to inherit from a class in C#?
Place a colon and then the name of the base class.
Example: class MyNewClass: MyBaseClass
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