completed course

.vscode/settings.json

@@ -18,7 +18,6 @@
   "files.autoSave": "afterDelay",
   "screencastMode.onlyKeyboardShortcuts": true,
   "terminal.integrated.fontSize": 18,
-  "workbench.activityBar.visible": true,
   "workbench.colorTheme": "Visual Studio Dark",
   "workbench.fontAliasing": "antialiased",
   "workbench.statusBar.visible": true,

_01_02b/Employee.java

@@ -5,35 +5,47 @@ public class Employee {
   public static void main(String[] args) {
 
     // Create a variable called age of type int and assign it the value 29.
+    int age = 29;
 
     // Print the age variable to the console.
+    System.out.println(age);
 
     // Create a variable called isAManager of type boolean and assign it the value
     // true.
+    Boolean isAManager = true;
 
     // Print the isAManager variable to the console.
+    System.out.println(isAManager);
 
     // Create a variable called yearsOfService of type double and assign it the
     // value 2.5.
+    double yearsOfService = 2.5;
 
     // Print the yearsOfService variable to the console.
+    System.out.println(yearsOfService);
 
     // Create a variable called baseSalary of type int and assign it the value 3000.
+    int baseSalary = 3000;
 
     // Create a variable called overtimePayment of type int and assign it the value
     // 40.
+    int overtimePayment = 40;
 
     // Create a variable called totalPayment of type int and assign it to the value
     // of baseSalary added to overtimePayment.
+    int totalPayment = baseSalary + overtimePayment;
 
     // Print the totalPayment variable to the console.
+    System.out.println( totalPayment);
 
     // Create three variables all of type double on a single line.
     // They should be called firstBonus, secondBonus and thirdBonus and they should
     // be assigned the values 10.00, 22.00 and 35.00.
+    double firstBonus = 10.00, secondBonus = 22.00, thirdBonus = 35.00;
 
     // Print out the sum of the variables called firstBonus, secondBonus and
     // thirdBonus.
+    System.out.println(firstBonus+secondBonus+thirdBonus);
 
   }
 

_01_04/MenuBuilder.java

@@ -7,26 +7,36 @@ public static void main(String[] args) {
 
     // Create a variable called menuTitle of type String and assign it the value "My
     // Dream Menu:".
+    String menuTitle = "My Dream Menu:";
 
     // Print the menuTitle variable to the console.
+    System.out.println(menuTitle);
 
     // Create a variable called menu of type ArrayList.
+    ArrayList<MenuItem> menu = new ArrayList<>();
 
     // Create a variable called starter of type MenuItem and pass in the name of
     // your favourite starter.
+    MenuItem starter = new MenuItem("Fanta");
 
     // Add the starter variable to the ArrayList called menu.
+    menu.add(starter);
 
     // Create a variable called mainCourse of type MenuItem and pass in the name of
     // your favourite main course.
+    MenuItem mainCourse = new MenuItem("Banku and Tilapia");
 
     // Add the mainCourse variable to the ArrayList called menu.
+    menu.add(mainCourse);
 
     // Create a variable called dessert of type MenuItem and pass in the name of
     // your favourite dessert.
+    MenuItem dessert = new MenuItem("Strawberry cake");
 
     // Add the dessert variable to the ArrayList called menu.
+    menu.add(dessert);
 
     // Print the menu variable to the console.
+    System.out.println(menu);
   }
 }

_01_05b/MenuBuilder.java

@@ -8,25 +8,36 @@ public static void main(String[] args) {
     // Create a variable called menuTitle of type String and assign it the value "My
     // Dream Menu:".
 
+        String menuTitle = "My Dream Menu:";
+
     // Print the menuTitle variable to the console.
+    System.out.println(menuTitle);
 
     // Create a variable called menu of type ArrayList.
+    ArrayList<MenuItem> menu = new ArrayList<>();
 
     // Create a variable called starter of type MenuItem and pass in the name of
     // your favourite starter.
+    MenuItem starter = new MenuItem("Fanta");
 
     // Add the starter variable to the ArrayList called menu.
+    menu.add(starter);
 
     // Create a variable called mainCourse of type MenuItem and pass in the name of
     // your favourite main course.
+    MenuItem mainCourse = new MenuItem("Banku and Tilapia");
 
     // Add the mainCourse variable to the ArrayList called menu.
+    menu.add(mainCourse);
 
     // Create a variable called dessert of type MenuItem and pass in the name of
     // your favourite dessert.
+    MenuItem dessert = new MenuItem("Strawberry cake");
 
     // Add the dessert variable to the ArrayList called menu.
+    menu.add(dessert);
 
     // Print the menu variable to the console.
+    System.out.println(menu);
   }
 }

_02_03b/Ticket.java

@@ -0,0 +1,12 @@
+package _02_03b;
+
+public class Ticket {
+
+  public Ticket() {
+
+  }
+
+  private String destination;
+  private double price;
+  private Boolean isReturn;
+}

_02_04/Ticket.java

@@ -15,5 +15,4 @@ public Ticket() {
 
   // Add a separate method to get the value of each field, called getDestination,
   // getPrice and getIsReturn.
-
 }

_02_05b/Ticket.java

@@ -13,7 +13,31 @@ public Ticket() {
   // Add three public methods to set the value of each field, called
   // setDestination, setPrice and setIsReturn.
 
+
+  public void setDestination(String destination) {
+    this.destination = destination;
+  }
+
+  public void setPrice(double value) {
+    this.price = value;
+  }
+
+  public void setIsReturn(Boolean value) {
+    isReturn = value;
+  }
+
   // Add three public methods to get the value of each field, called
   // getDestination, getPrice and getIsReturn.
 
+  public String getDestination(){
+    return destination;
+  }
+
+  public double getPrice(){
+    return price;
+  }
+
+  public Boolean getIsReturn(){
+    return isReturn;
+  }
 }

_02_07b/TicketMachine.java

@@ -4,18 +4,25 @@ public class TicketMachine {
 
 public static void main(String[] args) {
   // Create an object called ticket of type Ticket
+  Ticket ticket = new Ticket();
 
   // Set the destination of the ticket to New York
+  ticket.setDestination("New York");
 
   // Set the price of the ticket to 15.30
+  ticket.setPrice(15.30);
 
   // Set the isReturn value to true
+  ticket.setIsReturn(true);;
 
   // Print the ticket's destination to the console
+  System.out.println(ticket.getDestination());
 
   // Print the ticket's price to the console
+  System.out.println(ticket.getPrice());
 
   // Print the ticket's isReturn value to the console
+  System.out.println(ticket.getIsReturn());
 
 }
 

_03_03b/GradingSystem.java

@@ -5,25 +5,52 @@ public class GradingSystem {
   public boolean isAPass(int percentage) {
     // Return true if the percentage is higher than or equal to 60.
     // Otherwise return false.
+    if (percentage >= 60) {
+      return true;
+    }
     return false;
   }
 
   public char getGrade(int percentage) {
     // If the percentage is 90 or above, return 'A'.
+    if (percentage >= 90) {
+      return 'A';
+    }
     // If it's 80-89, return 'B'.
+    else if (percentage >= 80 && percentage <= 89) {
+      return 'B';
+    }
     // If it's 70-79, return 'C'.
+    else if (percentage >= 70 && percentage <= 79) {
+      return 'C';
+    }
     // If it's 60-69, return 'D'.
+    else if (percentage >= 60 && percentage <= 69) {
+      return 'D';
+    }
     // If it's less than 60, return 'F'.
+    else if (percentage < 60) {
+      return 'F';
+    }
     return 'X';
   }
 
   public String retakeMessage(int percentage, boolean allowedToRetake) {
     // If percentage is less than 60 and allowedToRetake is true, return a String
     // that says "The student has been entered for a retake."
+    if (percentage < 60 && allowedToRetake) {
+      return "The student has been entered for a retake.";
+    }
     // If percentage is less than 60 and allowedToRetake is false, return a String
     // that says "The student is not allowed to retake this exam."
+    else if (percentage < 60 && !allowedToRetake) {
+      return "The student is not allowed to retake.";
+    }
     // If percentage is 60 or higher, return a String that says "A retake is not
     // required."
+    if (percentage > 59) {
+      return "A retake is not required";
+    }
     return "";
   }
 

_03_03b/Main.java

@@ -4,7 +4,7 @@ public class Main {
 
   public static void main(String[] args) {
     GradingSystem gradingSystem = new GradingSystem();
-    int percentage = 85;
+    int percentage = 15;
     System.out.println("Percentage: " + percentage);
     System.out.println("Pass: " + gradingSystem.isAPass(percentage));
     System.out.println("Grade: " + gradingSystem.getGrade(percentage));

_03_05b/ForLoops.java

@@ -5,10 +5,19 @@ public class ForLoops {
   public static void main(String[] args) {
     // Write a for loop that prints out the phrase "I love for loops" 5 times
 
+    for (int i = 0; i < 5; i++) {
+      System.out.println("I love for loops");
+    }
+
     // Write a for loop that prints out the numbers 1 to 10
+    for (int i = 1; i < 11; i++) {
+      System.out.println(i);
+    }
 
     // Write a for loop that prints out the numbers 10 to 1
-
+    for (int i = 10; i > 0; i--) {
+      System.out.println(i);
+    }
   }
 
 }

_03_07b/EnhancedForLoops.java

@@ -8,14 +8,24 @@ public class EnhancedForLoops {
   public static void main(String[] args) {
     int[] primeNumbers = { 2, 3, 5, 7, 11, 13, 17, 19 };
     // Write an enhanced for loop to print out each prime number in the array.
+    for (int value : primeNumbers) {
+      System.out.println(value);
+    }
 
     List<String> weekDays = Arrays.asList("Monday", "Tuesday", "Wednesday", "Thursday", "Friday");
     // Write an enhanced for loop to print out each week day in the list.
+    for (String day : weekDays) {
+      System.out.println(day);
+    }
 
     int[] randomNumbers = { 23, 51, 72, 84, 1, 60, 34, 102 };
     // Write an enhanced for loop to print out the numbers in the array that are
     // greater than 50.
 
+    for (int value : randomNumbers) {
+      if (value > 50) {
+        System.out.println(value);
+      }
+    }
   }
-
 }