Lektion 8: lösningsförslag

  1. // 1
  2. class Person1
  3. {
  4. public string FirstName;
  5. public string LastName;
  6. public int Age;
  8. public string Summary()
  9. {
  10. return FirstName + " " + LastName + " är " + Age + " år gammal.";
  11. }
  12. }
  14. // 2
  15. class Person2
  16. {
  17. public int Age;
  18. public string Country;
  19. public int Elected;
  21. public bool CanBePresident()
  22. {
  23. return Age >= 35 && Country == "USA" && Elected <= 1;
  24. }
  25. }
  27. // 3
  28. class Person3
  29. {
  30. public string Gender;
  31. public int Age;
  32. public bool Married;
  33. public int Children;
  34. public string Car;
  36. public string Summary()
  37. {
  38. string summary = Gender + ", " + Age;
  39. if (Married)
  40. {
  41. summary += ", gift";
  42. }
  43. else
  44. {
  45. summary += ", ogift";
  46. }
  47. if (Children > 0)
  48. {
  49. summary += ", " + Children + " barn";
  50. }
  51. if (Car != null)
  52. {
  53. summary += ", reg " + Car;
  54. }
  55. return summary;
  56. }
  57. }
  59. // 4
  60. class Company
  61. {
  62. public string Name;
  63. public string Headquarters;
  64. public int Age;
  66. public Company MergeWith(Company other)
  67. {
  68. return new Company
  69. {
  70. Name = Name + "-" + other.Name,
  71. Headquarters = Headquarters,
  72. Age = 0
  73. };
  74. }
  75. }
  77. // 5
  78. class Home
  79. {
  80. public double Temperature;
  81. public double Volume;
  83. public bool IsWarm()
  84. {
  85. return Temperature >= 18 && Temperature <= 26;
  86. }
  88. public bool IsQuiet()
  89. {
  90. return Volume <= 45;
  91. }
  93. public bool IsHabitable()
  94. {
  95. return IsWarm() && IsQuiet();
  96. }
  97. }
  99. // 6
  100. class Person4
  101. {
  102. public string FirstName;
  103. public string LastName;
  104. public int Age;
  105. public double Income;
  107. public string FullName()
  108. {
  109. return FirstName + " " + LastName;
  110. }
  112. public bool CanMarry()
  113. {
  114. return Age >= 18;
  115. }
  117. public double FederalIncomeTaxRate()
  118. {
  119. if (Income <= 438900)
  120. {
  121. return 0;
  122. }
  123. else if (Income <= 638500)
  124. {
  125. return 0.2;
  126. }
  127. else
  128. {
  129. return 0.25;
  130. }
  131. }
  132. }
  134. // 7
  135. class Person5
  136. {
  137. public string Name;
  138. public int Age;
  139. public double Wealth;
  140. public double Salary;
  142. public void PaySalary()
  143. {
  144. Wealth += Salary;
  145. }
  147. public void WinLottery()
  148. {
  149. Wealth += 10000;
  150. }
  152. public void CelebrateBirthday()
  153. {
  154. Age += 1;
  155. Wealth += 500;
  156. }
  158. public void ShowPerson()
  159. {
  160. Console.WriteLine(Age + "-åriga " + Name + " har en lön på " + Salary + " kronor och " + Wealth + " kronor på banken.");
  161. }
  162. }