Beginning Visual C# 2010

Appendix A. Exercise Solutions

There are no exercises in chapters 1 and 2.

CHAPTER 3 SOLUTIONS

Exercise 1

super.smashing.great

Exercise 2

b), as it starts with a number, and e), as it contains a full stop.

Exercise 3

No, there is no theoretical limit to the size of a string that may be contained in a string variable.

Exercise 4

The * and / operators have the highest precedence here, followed by +, <<, and finally +=. The precedence in the exercise can be illustrated using parentheses as follows:

resultVar += (((var1 * var2) + var3) << (var4 / var5));

Exercise 5

static void Main(string[] args)
{
   int firstNumber, secondNumber, thirdNumber, fourthNumber;
   Console.WriteLine("Give me a number:");
   firstNumber = Convert.ToInt32(Console.ReadLine());
   Console.WriteLine("Give me another number:");
   secondNumber = Convert.ToInt32(Console.ReadLine());
   Console.WriteLine("Give me another number:");
   thirdNumber = Convert.ToInt32(Console.ReadLine());
   Console.WriteLine("Give me another number:");
   fourthNumber = Convert.ToInt32(Console.ReadLine());
   Console.WriteLine("The product of {0}, {1}, {2}, and {3} is {4}.",
            firstNumber, secondNumber, thirdNumber, fourthNumber,
            firstNumber * secondNumber * thirdNumber * fourthNumber);}

Note that Convert.ToInt32() is used here, which isn't covered in the chapter.

CHAPTER 4 SOLUTIONS

Exercise 1

(var1 > 10) ˆ (var2 > 10)

Exercise 2

static void Main(string[] args) { bool numbersOK = false; double var1, var2; var1 = 0; var2 = 0; while (!numbersOK) { Console.WriteLine("Give me a number:"); ...