16 Questions
What is the default access modifier for member fields, methods, and events in classes?
private
Which access modifier allows access to the containing program or assembly and in the derived classes?
protected internal
What is the default access modifier for class definitions?
internal
Which type of variables are created within a class and are called instance variables?
Instance variables
What is the purpose of explicit conversion (casting) in programming?
To convert lower data types into higher data types
When is explicit conversion (casting) needed in programming?
When there is a risk of data loss
How is explicit conversion (casting) initiated in programming?
By using casting operators like (type)
What characterizes explicit conversion (casting) in programming?
Requires explicit use of casting operators or conversion methods
In C#, which method is used to convert a string to an integer?
Convert.ToInt32()
What does the 'out' keyword indicate in the context of parsing in C#?
It specifies the target variable where the parsed value will be stored.
Which class provides a set of static methods for converting values between different data types in C#?
Convert
What happens if a parsing operation in C# fails to convert the input string to the desired type?
'false' is returned indicating parsing failure.
What runtime error occurs if trying to unbox an object to the wrong type?
InvalidCastException
Which operator in C# is used for type checking to see if an object is of a certain type?
is operator
What should be on the right side of the 'is' operator in C#?
type
Which exception is thrown when there's a type mismatch during unboxing in C#?
InvalidCastException
Learn how to use the TryParse method in C# to safely convert a string to a specified data type. See an example code snippet demonstrating the usage of TryParse to convert a string to an integer.
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