Added more OOP exercises and examples

src/oop/exe2/DynamicArray.java

@@ -0,0 +1,58 @@
+package oop.exe2;
+
+public class DynamicArray {
+
+    /***
+     * This method retrieves an item from the dynamic array at said index
+     *
+     * if the given index is out of the bounds an error message
+     * will be printed and the method will return -1
+     *
+     * @param index The desired index
+     * @return The value desired
+     */
+    public int get(int index) {
+        return -1;
+    }
+
+
+    /***
+     * This method returns the current length of the Dynamic Array
+     * Note that for every new item added to the dynamic array,
+     * the length increases
+     * @return The length of the dynamic array
+     */
+    public int length() {
+        return 0;
+    }
+
+    /***
+     * This method adds a new item to the dynamic array
+     */
+    public void add(int value) {
+
+    }
+
+    /***
+     * Attempts to remove an item from the dynamic array based on a given index
+     * The method will fail if the index is invalid
+     *
+     * The method will also re-arrange the array in the following way:
+     * Let some array be: {5, 6, 7} (where index 0: 5 and index 1: 6 and index 2: 7)
+     * After a remove(1) (remove the 6)
+     * The array will be: {5,7}     (where index 0: 5 and index 1: 7)
+     *
+     * @param index A valid given index
+     * @return A boolean indicating whether the deletion was successful
+     */
+    public boolean remove(int index) {
+        return false;
+    }
+
+    /***
+     * Prints the array in a nice format
+     */
+    public void print() {
+
+    }
+}

src/oop/exe2/Mainer.java

@@ -0,0 +1,41 @@
+package oop.exe2;
+
+/**
+ * In this exercise you will be creating a Dynamic Array.
+ *
+ * As we know, arrays - once declared, cannot change their size.
+ * We would like to write a class that can do that
+ *
+ * Below in the "main" you will see code written by a programmer using your
+ * class, expected output in the prints are written in the comments.
+ *
+ * Complete the DynamicArray class methods to make the class function as desired
+ *
+ * Note: You may add as many fields and methods you like - but they must be 'private'
+ */
+public class Mainer {
+
+    public static void main(String[] args) {
+        // Create a new dynamic array object
+        // The array is currently empty
+        DynamicArray arr = new DynamicArray();
+
+        System.out.println(arr.length());   // 0
+        System.out.println(arr.get(0));     // -1, there are no items
+        System.out.println(arr.get(-9));    // -1, -9 is a bad index
+
+        arr.add(65);
+        arr.add(-100);
+        arr.add(1337);
+
+        System.out.println(arr.length());   // 3
+        System.out.println(arr.get(0));     // 65
+        arr.print();                        // {65, -100, 1337}
+
+        System.out.println(arr.remove(1)); // true
+        arr.print();                            // {65, 1337}
+        System.out.println(arr.length());       // 2
+
+
+    }
+}

src/oop/exe2/Bank.java → src/oop/exe3/Bank.java

@@ -1,4 +1,4 @@
-package oop.exe2;
+package oop.exe3;
 /**
  *
  * Object Oriented Programming - Bank

src/oop/exe3/Main.java

@@ -1,54 +1,32 @@
 package oop.exe3;
 
-
-/**
- * Object Oriented - PC Gamer
- *
- * In this exercise, you will be implementing a computer trying to install games on it
- * The computer will have a fixed amount of memory installed, and the amount will not change
- *
- * Each game has its required memory, and the computer will install the game only if it has enough space for it
- * Each game also has a release date, indicated by the SimpleDate class, games that are not available yet cannot be installed
- *
- * You are required to implement the methods in each class according to their description,
- * also, you may add more inner methods as you wish if you think that it would help you.
- * And eventually, the main should run as described in the comments
- */
 public class Main {
-
     public static void main(String[] args) {
-        Game game1 = new Game("001", "Need For Speed: Most Wanted", 16, new SimpleDate(1,1,2000));
-        Game game2 = new Game("002", "Half Life 3", 56, new SimpleDate(29,12,2037));
-        Game game3 = new Game("003", "Counter Strike 1.6", 8, new SimpleDate(1,1,2002));
-        Game game4 = new Game("004", "Smite", 24, new SimpleDate(1,12,2017));
-        Game game5 = new Game("005", "World of Warcraft", 56, new SimpleDate(24,3,2004));
+        Bank bank = new Bank(5);
 
+        // These should print-out "true"
+        System.out.println(bank.addPerson("Samuel", 10.0));
+        System.out.println(bank.addPerson("Andrew", 5.0));
+        System.out.println(bank.addPerson("Dan", 7.5));
+        System.out.println(bank.addPerson("Eric", 10.0));
+        System.out.println(bank.addPerson("John", 10.0));
 
-        Computer myPC = new Computer(64);
+        // This one should print-out "false"
+        System.out.println(bank.addPerson("Shaqed", 10.0));
 
-        myPC.printInstalledGames(); // Should print nothing
 
-        System.out.println(myPC.installGame(game2)); // Fails, game not released yet
+        bank.deposit("andrew1", 5.0); // This should be false
+        bank.deposit("Andrew", 5.0); // This should be true
 
-        System.out.println(myPC.installGame(game1)); // Success
-        System.out.println(myPC.installGame(game3)); // Success
-        System.out.println(myPC.installGame(game5)); // Fails, not enough memory
+        bank.deposit("Dan", 2.5); // This should be true
 
-        myPC.printInstalledGames(); // Should print only 2 games
+        bank.withdraw("Shaqed", 11); // This should return -1
+        bank.withdraw("Eric", 10); // This should return 10
 
-        System.out.println(myPC.removeGame(game5)); // Fails, game is not installed yet
-        System.out.println(myPC.removeGame(game1)); // Success
-        System.out.println(myPC.installGame(game5)); // Success
-        System.out.println(myPC.installGame(game4)); // Fails, not enough memory
+        bank.transfer("Dan", "Eric", 5.0); // This should be true
+        bank.transfer("Samuel", "Andrew", 15); // This should be false
 
-        // Print games installed
-        // This should print game 3 and game 5
-        for (Game game : myPC.getInstalledGames()) {
-            System.out.println(game.getUID() + ": " + game.getName());
-        }
-
-        // Pick a random game
-        Game randomGame = myPC.pickRandomGame();
-        System.out.println("My random game: " + randomGame.getName());
+        bank.print();
     }
+
 }

src/oop/exe3/Computer.java → src/oop/exe4/Computer.java

@@ -1,4 +1,4 @@
-package oop.exe3;
+package oop.exe4;
 
 public class Computer {
 

src/oop/exe3/Game.java → src/oop/exe4/Game.java

@@ -1,4 +1,4 @@
-package oop.exe3;
+package oop.exe4;
 
 public class Game {
 

src/oop/exe4/Main.java

@@ -0,0 +1,54 @@
+package oop.exe4;
+
+
+/**
+ * Object Oriented - PC Gamer
+ *
+ * In this exercise, you will be implementing a computer trying to install games on it
+ * The computer will have a fixed amount of memory installed, and the amount will not change
+ *
+ * Each game has its required memory, and the computer will install the game only if it has enough space for it
+ * Each game also has a release date, indicated by the SimpleDate class, games that are not available yet cannot be installed
+ *
+ * You are required to implement the methods in each class according to their description,
+ * also, you may add more inner methods as you wish if you think that it would help you.
+ * And eventually, the main should run as described in the comments
+ */
+public class Main {
+
+    public static void main(String[] args) {
+        Game game1 = new Game("001", "Need For Speed: Most Wanted", 16, new SimpleDate(1,1,2000));
+        Game game2 = new Game("002", "Half Life 3", 56, new SimpleDate(29,12,2037));
+        Game game3 = new Game("003", "Counter Strike 1.6", 8, new SimpleDate(1,1,2002));
+        Game game4 = new Game("004", "Smite", 24, new SimpleDate(1,12,2017));
+        Game game5 = new Game("005", "World of Warcraft", 56, new SimpleDate(24,3,2004));
+
+
+        Computer myPC = new Computer(64);
+
+        myPC.printInstalledGames(); // Should print nothing
+
+        System.out.println(myPC.installGame(game2)); // Fails, game not released yet
+
+        System.out.println(myPC.installGame(game1)); // Success
+        System.out.println(myPC.installGame(game3)); // Success
+        System.out.println(myPC.installGame(game5)); // Fails, not enough memory
+
+        myPC.printInstalledGames(); // Should print only 2 games
+
+        System.out.println(myPC.removeGame(game5)); // Fails, game is not installed yet
+        System.out.println(myPC.removeGame(game1)); // Success
+        System.out.println(myPC.installGame(game5)); // Success
+        System.out.println(myPC.installGame(game4)); // Fails, not enough memory
+
+        // Print games installed
+        // This should print game 3 and game 5
+        for (Game game : myPC.getInstalledGames()) {
+            System.out.println(game.getUID() + ": " + game.getName());
+        }
+
+        // Pick a random game
+        Game randomGame = myPC.pickRandomGame();
+        System.out.println("My random game: " + randomGame.getName());
+    }
+}

src/oop/exe3/SimpleDate.java → src/oop/exe4/SimpleDate.java

@@ -1,4 +1,4 @@
-package oop.exe3;
+package oop.exe4;
 
 public class SimpleDate {