Review Questions

   


1:

How are the following expressions evaluated in C#:

  1. 5 + 10 * 2

  2. 5 * 6 / 3

  3. 12 / 4 * 6

  4. 20 % 8

  5. myIntVariable++

  6. --myIntVariable

2:

Suppose you need to add number1 and number2 together and multiply this result by number3. The first attempt:

 number1 + number2 * number3 

gave a wrong result. Fix the problem.

3:

The following expression is correct but unclear for the reader of the code. Make it more clear.

 num1 + num2 / num3 * num4   num5 * num6 / num7 
4:

Write an if statement that checks whether a number (call it myNumber) of type int is even or odd. Only if myNumber is even should it write "The number is even" onscreen.

5:

What is the type of the following expression if weight is of type short?

 -weight 
6:

Improve the clarity of the following statement by separating it into three statements without altering the effects of the code:

 totalBacteria = ++bacteriaInBody1 + bacteriaInBody2++; 
7:

Draw a flowchart that illustrates the following logic. A person wants to go for a walk. If it rains, he asks his wife if they have an umbrella. If they have an umbrella he will go out; otherwise, he will stay inside. If it does not rain, he will go out whether they have an umbrella or not.

8:

Which construct would be suitable to represent the following values in a C# program: { Red, Green, Blue, Yellow, Purple}

9:

Write a statement that prints the following text on the console (including the quotation marks)?

 And then he said: "This is a great moment" 
10:

Suppose myString contains 20 characters. Write an expression that returns a sub-string from myString beginning at character number 10 and including 5 characters.

11:

Suppose distance1 is 100, distance2 is 200, and distance3 is 400. Write a statement that uses embedded formatted numbers to include the three variables in a string so that the final text reads

 The first distance is 100 meters, the second distance is 200 meters and the third distance is 400 meters. 


   


C# Primer Plus
C Primer Plus (5th Edition)
ISBN: 0672326965
EAN: 2147483647
Year: 2000
Pages: 286
Authors: Stephen Prata

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