Events and Delegates

Which of the following statements are TRUE?

• Delegate is a reference type

• Delegate is a value type

• Delegate does not define the method signature

• Delegate is pointer type

How to define a delegate which points to the following methods

• public delegate void ToString(int value);

• public string delegate ToString(int value);

• public delegate string ToString(int value);

• public string ToString(int value)

How to pass a function as a parameter in C#?

• Cannot pass a function as a parameter in C#

• Using pointer

• Using dynamic parameter type

• Using delegate

What will be the output of the following program ?

• Number: 100000.00

• Money: Rs. 1,00,000.00

• Number: 1,00,000
  Money: $1,00,000.00

• Compile-time error

Which of the following statement is TRUE?

• An event is an encapsulated delegate

• An event is a callback method

• A event is a static method

• None of the above

How would you declare an event for the following delegate?
public delegate void ClickHandler();

• public ClickHandler OnClick;

• public event ClickHandler OnClick;

• public event void OnClick;

• public ClickHandler event OnClick;

Which of the following is the built -in delegate function for handling events in .NET?

• public delegate void Action();

• public delegate void Predicate(object sender);

• public delegate void EventHandler(object sender, EventArgs e);

• None of the above

What will be the output of the following program?

• Compile-time error

• Runtime error

• Steve

• Hi Steve

What will be the output of the following program ?

• 10

• 0

• Compile-time error

• Runtime error

Which of the following is a correct way to declare a Func delegate that takes two integers and returns a string?

• Func<int, int, string> myFunc;

• Func<string, int, int> myFunc;

• Func<int, string, int> myFunc;

• Func<int, int> myFunc;