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

When is explicit conversion (casting) needed in programming?

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

How is explicit conversion (casting) initiated in programming?

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

What characterizes explicit conversion (casting) in programming?

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

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

<p>Convert.ToInt32() (D)</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. (A)</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 (B)</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. (C)</p> Signup and view all the answers

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

<p>InvalidCastException (B)</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 (C)</p> Signup and view all the answers

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

<p>type (B)</p> Signup and view all the answers

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

<p>InvalidCastException (D)</p> Signup and view all the answers

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