C# TryParse Method
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Questions and Answers

What is the default access modifier for member fields, methods, and events in classes?

  • internal
  • private (correct)
  • protected
  • public
  • Which access modifier allows access to the containing program or assembly and in the derived classes?

  • protected
  • internal
  • protected internal (correct)
  • public
  • What is the default access modifier for class definitions?

  • public
  • private
  • internal (correct)
  • protected
  • Which type of variables are created within a class and are called instance variables?

    <p>Instance variables</p> Signup and view all the answers

    What is the purpose of explicit conversion (casting) in programming?

    <p>To convert lower data types into higher data types</p> Signup and view all the answers

    When is explicit conversion (casting) needed in programming?

    <p>When there is a risk of data loss</p> Signup and view all the answers

    How is explicit conversion (casting) initiated in programming?

    <p>By using casting operators like (type)</p> Signup and view all the answers

    What characterizes explicit conversion (casting) in programming?

    <p>Requires explicit use of casting operators or conversion methods</p> Signup and view all the answers

    In C#, which method is used to convert a string to an integer?

    <p>Convert.ToInt32()</p> Signup and view all the answers

    What does the 'out' keyword indicate in the context of parsing in C#?

    <p>It specifies the target variable where the parsed value will be stored.</p> Signup and view all the answers

    Which class provides a set of static methods for converting values between different data types in C#?

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

    What happens if a parsing operation in C# fails to convert the input string to the desired type?

    <p>'false' is returned indicating parsing failure.</p> Signup and view all the answers

    What runtime error occurs if trying to unbox an object to the wrong type?

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

    Which operator in C# is used for type checking to see if an object is of a certain type?

    <p>is operator</p> Signup and view all the answers

    What should be on the right side of the 'is' operator in C#?

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

    Which exception is thrown when there's a type mismatch during unboxing in C#?

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

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