Object Initializers in C#

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Questions and Answers

What is the primary purpose of using object initializers in C#?

  • To replace the 'new' keyword in object creation
  • To directly set object properties during instantiation (correct)
  • To eliminate the need for constructors in classes
  • To reduce the number of properties in an object

Which of the following describes a benefit of using object initializers in C#?

  • Creating objects with the same starting values for all properties
  • Enabling the creation of multiple objects with different initial assignments (correct)
  • Limiting the number of accessible members in an object
  • Forcing the use of specific constructors with predefined values

How does using object initializers in C# help streamline object creation?

  • By automatically initializing all properties to null values
  • By providing a way to create objects with identical initial property values
  • By allowing for setting different initial values for properties without defining multiple constructors (correct)
  • By requiring the explicit definition of default constructors

In C#, what does an object initializer allow you to do?

<p>Assign values to accessible members directly during object instantiation (D)</p> Signup and view all the answers

What is a key advantage of utilizing object initializers when creating objects in C#?

<p>Facilitating the creation of objects with different starting values for various properties (B)</p> Signup and view all the answers

How do object initializers in C# contribute to code efficiency?

<p>By enabling quick and diverse initialization of object properties at instantiation (A)</p> Signup and view all the answers

What is the correct approach to assigning values to accessible members using auto-implemented properties?

<p>Simply write get; and/or set; without including return or set statements (D)</p> Signup and view all the answers

When using auto-implemented properties, what is automatically created without the need to define separate private data members?

<p>Anonymous backing field (B)</p> Signup and view all the answers

What does each object created from a class share instead of having its own copy of properties and methods?

<p>A common set of properties and methods defined in the class (C)</p> Signup and view all the answers

Which approach optimizes memory usage when creating multiple objects from a class?

<p>Sharing one copy of properties and methods among all instances of the class (D)</p> Signup and view all the answers

In object creation, what is a benefit of having all objects share the same set of class properties and methods?

<p>Optimized memory usage by reducing redundant property storage (C)</p> Signup and view all the answers

When initializing objects with different starting values for properties, what simplifies the process and optimizes memory usage?

<p><strong>Object initializers</strong> (A)</p> Signup and view all the answers

What is the primary purpose of constructors in C#?

<p>Setting up object properties directly at instantiation (A)</p> Signup and view all the answers

How do constructors differ from other methods in C#?

<p>They include the keyword void in the definition (A)</p> Signup and view all the answers

What does the new operator do when calling a constructor in C#?

<p>Initializes the object with default values (C)</p> Signup and view all the answers

How can custom initialization be achieved in C# classes?

<p>By using object initializers (B)</p> Signup and view all the answers

What happens if a class in C# does not provide its own constructor?

<p>The compiler provides a public default constructor with no parameters (C)</p> Signup and view all the answers

When is a constructor called in C# when creating an object instance of a class?

<p>Before any other methods or operations on the object (D)</p> Signup and view all the answers

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