Beginning C# 6.0 Programming with Visual Studio 2015

APPENDIX

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

using static System.Console;
using static System.Convert;
static void Main(string[] args)
{
   int firstNumber, secondNumber, thirdNumber, fourthNumber;
   WriteLine("Give me a number:");
   firstNumber = ToInt32(ReadLine());
   WriteLine("Give me another number:");
   secondNumber = ToInt32(Console.ReadLine());
   WriteLine("Give me another number:");
   thirdNumber = ToInt32(ReadLine());
   WriteLine("Give me another number:");
   fourthNumber = ToInt32(ReadLine());
   WriteLine($"The product of {firstNumber}, {secondNumber}, " +
           $"{thirdNumber}, and {fourthNumber} is " +
           $"{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) ^ (var2 > 10)

Exercise 2

using static System.Console; using static System.Convert; static void Main(string[] args) { bool numbersOK = false; double var1, var2; var1 = 0; var2 = 0; ...