diff --git a/.vscode/settings.json b/.vscode/settings.json
index 3fe1f5c..c122de0 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -18,9 +18,8 @@
   "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,
   "java.server.launchMode": "Standard"
-}
+}
\ No newline at end of file
diff --git a/_01_02b/Employee.class b/_01_02b/Employee.class
new file mode 100644
index 0000000..657702e
Binary files /dev/null and b/_01_02b/Employee.class differ
diff --git a/_01_02b/Employee.java b/_01_02b/Employee.java
index 12928d5..99f965f 100644
--- a/_01_02b/Employee.java
+++ b/_01_02b/Employee.java
@@ -5,35 +5,48 @@ 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.
+    double sum = firstBonus+secondBonus+thirdBonus;
+    System.out.println(sum);
 
   }
 
diff --git a/_01_04/MenuBuilder.java b/_01_04/MenuBuilder.java
index aeaebc5..6c50e19 100644
--- a/_01_04/MenuBuilder.java
+++ b/_01_04/MenuBuilder.java
@@ -7,26 +7,37 @@ 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("Break Fast");
 
     // 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("Programming_in_java");
+
 
     // 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("Ubwali"); 
 
     // Add the dessert variable to the ArrayList called menu.
+    menu.add(dessert);
 
     // Print the menu variable to the console.
+    System.out.println(menu);
   }
 }
diff --git a/_01_04/MenuItem.class b/_01_04/MenuItem.class
new file mode 100644
index 0000000..a77cdef
Binary files /dev/null and b/_01_04/MenuItem.class differ
diff --git a/_01_05b/MenuBuilder.java b/_01_05b/MenuBuilder.java
index cc35ba3..7e17c03 100644
--- a/_01_05b/MenuBuilder.java
+++ b/_01_05b/MenuBuilder.java
@@ -3,30 +3,41 @@
 import java.util.ArrayList;
 
 public class MenuBuilder {
+  /**
+   * @param args
+   */
   public static void main(String[] args) {
 
     // Create a variable called menuTitle of type String and assign it the value "My
     // Dream Menu:".
+    String menuTitle = "Dream Menu:";
 
     // Print the menuTitle variable to the console.
+    System.out.println(menuTitle);
 
     // Create a variable called menu of type ArrayList.
+    ArrayList<> menu = new ArrayList<>();
 
     // Create a variable called starter of type MenuItem and pass in the name of
     // your favourite starter.
+    MenuItem starter = new MenuItem("Jollof Rice");
 
     // 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("Ubwali");
 
     // 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("tagine");
 
     // Add the dessert variable to the ArrayList called menu.
-
+    menu.add(dessert);
     // Print the menu variable to the console.
+    System.out.println(menu);
   }
 }
diff --git a/_02_02/Ticket.class b/_02_02/Ticket.class
new file mode 100644
index 0000000..c4bf5df
Binary files /dev/null and b/_02_02/Ticket.class differ
diff --git a/_02_02/Ticket.java b/_02_02/Ticket.java
new file mode 100644
index 0000000..3dfb316
--- /dev/null
+++ b/_02_02/Ticket.java
@@ -0,0 +1,17 @@
+package _02_02;
+
+public class Ticket {
+  
+  private String destination;
+  private double price;
+  private boolean isReturn;
+  
+  public Ticket() {
+
+  }
+
+public static void main(String args[]){
+Ticket ticket = new Ticket();
+System.out.println(ticket);
+}
+}
\ No newline at end of file
diff --git a/_02_03b/Ticket.java b/_02_03b/Ticket.java
new file mode 100644
index 0000000..912827d
--- /dev/null
+++ b/_02_03b/Ticket.java
@@ -0,0 +1,11 @@
+package _02_03b;
+
+public class Ticket {
+  private String destination;
+  private double price;
+  private boolean isReturn;
+
+  public Ticket() {
+
+  }
+}
diff --git a/_02_05b/Ticket.java b/_02_05b/Ticket.java
index 339f8a0..33f7994 100644
--- a/_02_05b/Ticket.java
+++ b/_02_05b/Ticket.java
@@ -12,8 +12,25 @@ 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 price){
+    this.price = price;
+  }
+  public void setIsReturn(boolean isReturn){
+    this.isReturn = isReturn;
+  }
 
   // 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;
+  }
 }
diff --git a/_02_06/TicketMachine.java b/_02_06/TicketMachine.java
index 70c43e1..ea81940 100644
--- a/_02_06/TicketMachine.java
+++ b/_02_06/TicketMachine.java
@@ -4,18 +4,24 @@ 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());
 
 }
 
diff --git a/_02_07b/TicketMachine.java b/_02_07b/TicketMachine.java
index 77398c3..cb94eae 100644
--- a/_02_07b/TicketMachine.java
+++ b/_02_07b/TicketMachine.java
@@ -1,23 +1,27 @@
 package _02_07b;
 
 public class TicketMachine {
-  
-public static void main(String[] args) {
-  // Create an object called ticket of type Ticket
 
-  // Set the destination of the ticket to New York
+  public static void main(String[] args) {
+    // Create an object called ticket of type Ticket
+    Ticket ticket = new Ticket();
 
-  // Set the price of the ticket to 15.30
+    // Set the destination of the ticket to New York
+    ticket.setDestination("New York");
 
-  // Set the isReturn value to true
+    // Set the price of the ticket to 15.30
+    ticket.setPrice(15.30);
 
-  // Print the ticket's destination to the console
+    // 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
-
-  // Print the ticket's isReturn value to the console
-
-}
+    // 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());
+  }
 
 }
diff --git a/_03_03b/GradingSystem.java b/_03_03b/GradingSystem.java
index c8717c7..2950001 100644
--- a/_03_03b/GradingSystem.java
+++ b/_03_03b/GradingSystem.java
@@ -5,7 +5,12 @@ public class GradingSystem {
   public boolean isAPass(int percentage) {
     // Return true if the percentage is higher than or equal to 60.
     // Otherwise return false.
-    return false;
+    if (percentage >= 60) {
+      return true;
+    } else {
+      return false;
+
+    }
   }
 
   public char getGrade(int percentage) {
@@ -14,17 +19,41 @@ public char getGrade(int percentage) {
     // If it's 70-79, return 'C'.
     // If it's 60-69, return 'D'.
     // If it's less than 60, return 'F'.
-    return 'X';
+    if (percentage >= 90) {
+      return 'A';
+    } else if (percentage >= 80 && percentage <= 89) {
+      return 'B';
+    } else if (percentage >= 70 && percentage <= 79) {
+      return 'C';
+    } else if (percentage <= 60 && percentage <= 69) {
+      return 'D';
+    } else if (percentage < 60) {
+      return 'F';
+    } else {
+      return 'X';
+    }
   }
 
   public String retakeMessage(int percentage, boolean allowedToRetake) {
     // If percentage is less than 60 and allowedToRetake is true, return a String
+    if (percentage < 60 && allowedToRetake == true) {
+      return "he student has been entered for a retake.";
+    }
     // that says "The student has been entered for a retake."
     // If percentage is less than 60 and allowedToRetake is false, return a String
+    if (percentage < 60 && allowedToRetake == false) {
+      return "he student is not allowed to retake this exam.";
+    }
     // that says "The student is not allowed to retake this exam."
     // If percentage is 60 or higher, return a String that says "A retake is not
+    if (percentage >= 60) {
+      return "A retake is not required";
+    }
     // required."
-    return "";
+    else {
+      return "";
+    }
+
   }
 
 }
diff --git a/_03_04/ForLoops.class b/_03_04/ForLoops.class
new file mode 100644
index 0000000..ce23bb8
Binary files /dev/null and b/_03_04/ForLoops.class differ
diff --git a/_03_04/ForLoops.java b/_03_04/ForLoops.java
index 11a2292..dc5f5ba 100644
--- a/_03_04/ForLoops.java
+++ b/_03_04/ForLoops.java
@@ -1,14 +1,26 @@
 package _03_04;
 
 public class ForLoops {
+  private static int x;
 
   public static void main(String[] args) {
     // Write a for loop that prints out the phrase "I love for loops" 5 times
+    for (x = 0; x <= 5; x++) {
+      System.out.println("I love for loops");
+      System.out.println(x);
+    }
+    System.out.println("first loop ends.............");
 
     // Write a for loop that prints out the numbers 1 to 10
+    for (x = 1; x < 11; x++) {
+      System.out.println(x);
+    }
+    System.out.println("the second loop ends........");
 
     // Write a for loop that prints out the numbers 10 to 1
-    
+    for (x = 10; x > 0; x--) {
+      System.out.println(x);
+    }
 
   }
 
diff --git a/_03_06/EnhancedForLoops.class b/_03_06/EnhancedForLoops.class
new file mode 100644
index 0000000..aab70b9
Binary files /dev/null and b/_03_06/EnhancedForLoops.class differ
diff --git a/_03_06/EnhancedForLoops.java b/_03_06/EnhancedForLoops.java
index 0008f6d..c590923 100644
--- a/_03_06/EnhancedForLoops.java
+++ b/_03_06/EnhancedForLoops.java
@@ -8,13 +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 prime:primeNumbers){
+      System.out.println(prime);
+    }
 
     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 weekDay:weekDays){
+    System.out.println(weekDay);
+    }
 
     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 rand:randomNumbers){
+      if (rand > 50){
+        System.out.println(rand);
+      }
+    }
 
   }
 
diff --git a/_03_07b/EnhancedForLoops.class b/_03_07b/EnhancedForLoops.class
new file mode 100644
index 0000000..262384d
Binary files /dev/null and b/_03_07b/EnhancedForLoops.class differ
diff --git a/_03_07b/EnhancedForLoops.java b/_03_07b/EnhancedForLoops.java
index 40d3207..357aeb9 100644
--- a/_03_07b/EnhancedForLoops.java
+++ b/_03_07b/EnhancedForLoops.java
@@ -8,13 +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 prime:primeNumbers){
+      System.out.println(prime);
+    }
 
     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 weekDay :weekDays){
+      System.out.println(weekDay);
 
+    }
     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 rand:randomNumbers){
+      if(rand > 50){
+        System.out.println(rand);
+      }
+    }
 
   }