C# Short-Circuit Evaluation
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Questions and Answers

What is the key difference between const and readonly variables in C#?

  • Const variables can only be initialized at declaration, whereas readonly variables can be modified by any method in the class.
  • Readonly variables do not incur any memory overhead, unlike const variables.
  • Const variables can have their values modified by the constructor, unlike readonly variables.
  • Const variables can be initialized either at declaration or in the constructor, while readonly variables are replaced with their actual values at compile time. (correct)

    • What does casting refer to in C#?

  • Implicit conversion of smaller data types to larger data types.
  • Conversion of integer data type to float data type.
  • Conversion of string data type to integer data type.
  • Explicit conversion of a value from one data type to another. (correct)

    • How does method overloading contribute to code flexibility?

  • It enforces that all overloaded methods must have the same return type.
  • It restricts the number of methods that can have the same name in a class.
  • It allows defining multiple methods with the same name and same parameter lists.
  • It permits defining multiple methods with the same name but different parameter lists. (correct)

    • What do jagged arrays consist of in C#?

    <p>Arrays where each element is an array of different lengths.</p> Signup and view all the answers

    What does the params keyword allow in C#?

    <p>It enables passing a variable number of arguments to a method without explicitly creating an array.</p> Signup and view all the answers

    Why is understanding argument promotion and casting crucial in C# programming?

    <p>To ensure type safety and avoid unexpected behavior in code.</p> Signup and view all the answers

    What is short-circuit evaluation in C#?

    <p>A technique to optimize code by stopping the evaluation of a logical expression as soon as the result can be determined</p> Signup and view all the answers

    In logical AND operations (&&) in C#, when does short-circuit evaluation occur?

    <p>When the left operand evaluates to false</p> Signup and view all the answers

    What is the purpose of the static keyword in C#?

    <p>To declare members that belong to the class itself rather than instances of the class</p> Signup and view all the answers

    How are static members accessed in C#?

    <p>Directly using the class name</p> Signup and view all the answers

    What kind of values can const variables hold in C#?

    <p>Values that cannot be changed once assigned</p> Signup and view all the answers

    Why are static classes used in C#?

    <p>To provide utility functions and constants without needing instances of the class</p> Signup and view all the answers

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