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1. The statement “Stack<int> objectStack = new Stack<int>();” indicates that obj

ID: 3860412 • Letter: 1

Question

1. The statement “Stack<int> objectStack = new Stack<int>();” indicates that object Stack stores _______ .

2. Attempting to invoke a derived-class-only method through a base-class variable is an error.

3. Which of the following property specify the duration of a Timer in System.Timers.Timer

4. The .NET languages have which of the following in common?

5. Which of the following classes is not in the System.IO namespace?

6. Why does a syntax error occur when trying to declare a variable called 'lock'?

7. Which of the following is an appropriate declaration of an abstract method?

8. In a WPF project, there is a textbox UI element named txtAge is used for age input, which of the following can properly obtain an integer value of age?

9. Which of the following best describes what a delegate is?

10. What keyword is added to a delegate to force subscribers to use += or =?

Object

Explanation / Answer

1.“Stack<int> objectStack = new Stack<int>();
  
Take an Example of
Stack<Banana> bananas = new Stack<Banana>();
bananas.Push(new Banana());
bananas.Push(new Banana());

So here it clearly says that it is an object.

2.Attempting to invoke a derived-class-only method through a base-class variable is an error. False

because we can all the base-class variable from the derived-class


3.Events specify the duration of a Timer in System.Timers.Timer

4.Base Class Library is common in .Net

5.FileLoad is not in the System.IO namespace.

6.'lock' is a reserved keyword

7.public abstract int GetScore();
abstract doesnot have any body.

8.int age = Convert.ToInt32(txtAge);

we will get the value into integer and if we want to convert into string
we will use convert.Tostring()

9.A lightweight thread or process that can call a single method.

10.event is a keyword is added to a delegate to force subscribers to use += or =.

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