Not my best, can/will do better!

src/main/java/com/dtcc/exams/part1/BasicUtilities.java

@@ -3,19 +3,32 @@
 public class BasicUtilities {
 
     public Boolean isGreaterThan5(Integer value) {
-        return null;
+        if (value < 5) {
+            return false;
+        } else {
+            return true;
+        }
     }
 
     public Boolean isLessThan7(Integer value) {
-        return null;
+        if (value <= 7) {
+            return true;
+        } else {
+            return false;
+        }
     }
 
     public Boolean isBetween5And7(Integer valueToEvaluate) {
-        return null;
+        if (valueToEvaluate <= 7 && valueToEvaluate >= 5) {
+            return true;
+        } else {
+            return false;
+        }
     }
 
     public Boolean startsWith(String string, Character character) {
-        return null;
+
+        return false;
     }
+}
 
-}

src/main/java/com/dtcc/exams/part1/DelTechConcatenator.java

@@ -1,20 +1,39 @@
 package com.dtcc.exams.part1;
-
+import java.util.Scanner;
 public class DelTechConcatenator {
 
+    Scanner scan = new Scanner(System.in);
+    int input = 0;
     public DelTechConcatenator(Integer input) {
+        input = scan.nextInt();
+        int count = 0;
+        for(int i = 1; i <= input; i++){
+            count++;
+        }
     }
 
     public Boolean isDel() {
-        return null;
+        if(input % 3 == 0){
+            return true;
+        }else {
+            return false;
+        }
     }
 
     public Boolean isTech() {
-        return null;
+        if(input % 5 == 0) {
+            return true;
+        }else {
+            return false;
+        }
     }
 
     public Boolean isDelTech() {
-        return null;
+        if(input % 3 == 0 && input % 5 == 0){
+            return true;
+        }else {
+            return false;
+        }
     }
 
 }

src/main/java/com/dtcc/exams/part1/IntegerArrayUtilities.java

@@ -3,19 +3,24 @@
 public class IntegerArrayUtilities {
 
     public Boolean hasEvenLength(Integer[] array) {
-        return null;
+            if (array.length % 2 != 0) {
+                return false;
+        }return true;
     }
-
     public Integer[] range(int start, int stop) {
+
         return null;
     }
 
     public Integer getSumOfFirstTwo(Integer[] array) {
-        return null;
+        int sum = array[0] + array[1];
+        return sum;
     }
 
     public Integer getProductOfFirstTwo(Integer[] array) {
-        return null;
+        int product = array.length * array.length-1;
+
+        return product;
     }
 
 }

src/main/java/com/dtcc/exams/part2/ArrayUtility.java

@@ -1,12 +1,26 @@
 package com.dtcc.exams.part2;
 
+import java.util.Arrays;
+
 public class ArrayUtility {
 
     public Integer[] merge(Integer[] array1, Integer[] array2) {
+        int firstArray = array1.length;
+        int secondArray = array2.length;
+        int count = 0;
+        int[] result = new int [firstArray + secondArray];
+        for(int i = 0; i < array1.length; i++) {
+            result[i] = array1[i];
+            count++;
+        }
+            for(int j = 0; j < array2.length; j++){
+              result[count++] = array2[j];
+            }
         return null;
     }
 
     public Integer[] rotate(Integer[] array, Integer index) {
+
         return null;
     }
 

src/main/java/com/dtcc/exams/part2/ListUtility.java

@@ -5,6 +5,7 @@
 public class ListUtility {
 
     public Boolean add(int i) {
+
         return null;
     }
 

src/main/java/com/dtcc/exams/part3/Animal.java

@@ -6,4 +6,6 @@ public interface Animal {
     int getSpeed();
     String color();
 
+
+
 }

src/main/java/com/dtcc/exams/part3/Bird.java

@@ -1,11 +1,21 @@
 package com.dtcc.exams.part3;
 
-public class Bird {
+public class Bird implements Animal {
 
     public String move() {
+        String move = "fly";
+        return move;
+    }
+
+    public int getSpeed() {
+        return 0;
+    }
+
+    public String color() {
         return null;
     }
 
+
     public void setMigrationMonth(String expected) {
 
     }

src/main/java/com/dtcc/exams/part3/Horse.java

@@ -1,4 +1,22 @@
 package com.dtcc.exams.part3;
 
-public class Horse {
+public class Horse implements Animal {
+
+
+    public String move() {
+        String move = "gallop";
+        return move;
+    }
+
+
+    public int getSpeed() {
+        int speed = 40;
+        return speed;
+    }
+
+
+    public String color() {
+        String color = "black";
+        return color;
+    }
 }

src/main/java/com/dtcc/exams/part3/PeregrineFalcon.java

@@ -1,4 +1,14 @@
 package com.dtcc.exams.part3;
 
-public class PeregrineFalcon {
+public class PeregrineFalcon extends Bird{
+
+    public String color() {
+        String color = "brown";
+        return color;
+    }
+    public int getSpeed() {
+        int speed = 13;
+        return speed;
+    }
+
 }

src/main/java/com/dtcc/exams/part3/RedRobin.java

@@ -1,4 +1,29 @@
 package com.dtcc.exams.part3;
 
-public class RedRobin {
+public class RedRobin extends Bird{
+
+    public String color() {
+        String color = "red";
+        return color;
+    }
+
+    public int getSpeed() {
+        int speed = 10;
+        return speed;
+    }
+
+    public String migrationMonth() {
+
+        return null;
+    }
+
+    public String getMigrationMonth() {
+        String migrationMonth = "August";
+        return migrationMonth;
+    }
+
+    public void setMigrationMonth(String expected) {
+
+    }
+
 }

src/main/java/com/dtcc/exams/part3/SpeedComparator.java

@@ -1,4 +1,11 @@
 package com.dtcc.exams.part3;
 
-public class SpeedComparator {
+public class SpeedComparator implements Comparable<Animal> {
+
+    int speed;
+
+    public int compareTo(Animal animal1) {
+
+        return 0;
+    }
 }