10+ Willowood Industries Interview Questions and Answers

The default access modifier in C# is 'private'.

• Default access modifier is applied if no access modifier is specified for a class member

• It restricts the access to the member within the same class

• Example: private int myVariable = 10;

A base class is a class that is used as a starting point for creating other classes. It can be inherited by other classes.

• Base class provides common attributes and methods that can be inherited by other classes

• Derived classes can extend or override the functionality of the base class

• Example: Animal can be a base class with attributes like name and methods like eat, sleep

Singleton design pattern ensures a class has only one instance and provides a global point of access to it.

• Used to restrict the instantiation of a class to one object

• Commonly used in logging, caching, thread pools, database connections

• Implemented by creating a static instance of the class and a private constructor to prevent external instantiation

Access modifiers in C# control the visibility and accessibility of classes, methods, and other members.

• Public - accessible from any other class or assembly

• Private - accessible only within the same class

• Protected - accessible within the same class or derived classes

• Internal - accessible within the same assembly

• Protected Internal - accessible within the same assembly or derived classes

Singleton is a design pattern that restricts the instantiation of a class to one object and provides a global point of access.

• Singleton ensures that only one instance of a class is created and provides a way to access it globally.

• It is thread-safe because the instance is created only once and accessed through a synchronized method or block.

• Singleton can be implemented using different approaches such as eager initialization, lazy initialization, and enum.

• Example: Java's Runtim...read more

Object class is the base class of all classes in C#.

• Object class provides basic functionalities like ToString(), GetHashCode(), and Equals() to all classes.

• All classes in C# implicitly inherit from Object class.

• Object class is defined in System namespace.

• Example: class MyClass : Object { }

Default access modifiers are public, protected, and private.

• Public: accessible from anywhere

• Protected: accessible within the class and its subclasses

• Private: accessible only within the class

Access modifiers in C# control the visibility and accessibility of class members.

• Public: accessible from anywhere

• Private: accessible only within the class

• Protected: accessible within the class and derived classes

• Internal: accessible within the same assembly

• Protected Internal: accessible within the same assembly and derived classes

• Example: public int age; private string name;

• Example: protected void DoSomething(); internal bool IsEnabled;

Components of a service include functionality, reliability, availability, and performance.

• Functionality: The service should perform the intended tasks and meet the requirements.

• Reliability: The service should consistently deliver the expected results.

• Availability: The service should be accessible and operational when needed.

• Performance: The service should perform efficiently and meet performance expectations.