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C# Constructor Basics
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C# Constructor Basics

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Questions and Answers

What is the purpose of a constructor in a class?

  • To set the access modifier for a field
  • To create a new instance of the class (correct)
  • To define a method that can be called multiple times
  • To initialize fields with default values
  • What happens if you do not create a class constructor yourself?

  • The compiler will throw an error
  • The class cannot be instantiated
  • The fields are initialized with default values
  • C# creates one for you (correct)
  • What is the purpose of constructor parameters?

  • To define the return type of the constructor
  • To create a new instance of the class
  • To declare a method inside the constructor
  • To initialize fields with specific values (correct)
  • What is the name of the constructor in the following code: class Car { ... }?

    <p>Car</p> Signup and view all the answers

    How many parameters can a constructor have?

    <p>As many as you want</p> Signup and view all the answers

    What is the output of the following code: Car Ford = new Car ( "Mustang", "Red", 1969); Console.WriteLine( Ford.color + " " + Ford.year + " " + Ford.model);?

    <p>Red 1969 Mustang</p> Signup and view all the answers

    What is the purpose of a constructor in a class?

    <p>To initialize objects with default values</p> Signup and view all the answers

    How do you access a method in a class?

    <p>Using the dot syntax with the object name</p> Signup and view all the answers

    What is the difference between a static method and a public method?

    <p>A static method can be accessed without an object, while a public method requires an object</p> Signup and view all the answers

    What is the purpose of a field in a class?

    <p>To store data or values</p> Signup and view all the answers

    Why did we declare the fullThrottle method as public and not static?

    <p>Because it can only be accessed by objects</p> Signup and view all the answers

    What is the syntax to call a method in a class?

    <p>Method name followed by two parentheses and a semicolon</p> Signup and view all the answers

    What is the purpose of a constructor in a class?

    <p>To initialize objects with default values</p> Signup and view all the answers

    What is the advantage of using a constructor in the example given?

    <p>It reduces the amount of code</p> Signup and view all the answers

    What is the access modifier that allows access to a class from any other class?

    <p>public</p> Signup and view all the answers

    What is created when you use the new keyword in C#?

    <p>A new object</p> Signup and view all the answers

    Which of the following access modifiers allows access to a class only within the same class?

    <p>private</p> Signup and view all the answers

    What is the purpose of overloading a constructor in C#?

    <p>To allow different ways of initializing an object</p> Signup and view all the answers

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