Added class Hints, including tests

src/Client/src/main/java/greenify/client/Hints.java

@@ -0,0 +1,68 @@
+package greenify.client;
+
+import java.util.ArrayList;
+import java.util.Random;
+
+public class Hints {
+    public ArrayList<String> hints;
+
+    public Hints() {
+        this.hints = new ArrayList<String>();
+        initHints();
+    }
+
+    /**
+     * This method adds all the Strings to the arraylist.
+     */
+    private void initHints() {
+        hints.add("Buying local produce will not only decrease your carbon "
+                + "footprint, but also help your local economy: A win-win!");
+        hints.add("Did you know that a gas oven only uses 6% of its energy "
+                + "to cook? And an electric oven is not much better at 12%.");
+        hints.add("70% of the deforestation of the Amazon is to provide land for cattle ranches.");
+        hints.add("Research shows that reducing meat consumption can increase"
+                + " your life span by 3.6 years");
+        hints.add("Vegetarians have a lower risk of getting heart disease, high blood pressure, "
+                + "diabetes and cancer than meat eaters.");
+        hints.add("Did you know? The carbon footprint of a vegetarian diet is about half "
+                + "that of a meat-lover’s diet!");
+        hints.add("Cycling is good for the environment AND for your body, "
+                + "so why not grab your bike instead of your car?");
+        hints.add("If we could capture all of the sun’s energy shining on the Earth for just one "
+                + "hour, we could power the entire world for one year!");
+        hints.add("27,000 trees are cut down each day so we can have toilet paper.");
+        hints.add("A glass bottle made in our time will take more than 4,000 years to decompose.");
+        hints.add("Don't forget to turn off the lights and heating in rooms"
+                + " you're not using at the moment!");
+        hints.add("Did you know that about 4.5% of the Dutch population does not eat meat");
+        hints.add("Reuse your bags when you go grocery shopping. You will save plastic bags.");
+        hints.add("An estimated 250 million trees can be save each year "
+                + "if every published newspaper is recycled.");
+        hints.add("About 88,000 jobs were created in 2015 through the wind power sector.");
+        hints.add("You can use LED lights in your home to safe energy!");
+        hints.add("If you isolate your home well, it will be warmer "
+                + "and you'll save energy as well!");
+        hints.add("Do you have leftovers? Donate them to food kitchens. This way you won't waste "
+                + "food and help people at the same time.");
+        hints.add("A lot of coffee places give you a discount if you bring your own cup. "
+                + "Get rid of those disposable cups!");
+        hints.add("When shopping, look for products with minimal to no packaging, "
+                + "or at least packaging made from recycled items. ");
+        hints.add("If you order food, you can ask the restaurant to not include "
+                + "utensils and napkins, it saves plastic and paper.");
+        hints.add("It takes about 66 days to form a new habit, keep going!");
+        hints.add("Get yourself a nice reusable water bottle! It's cheaper and better for "
+               + "the environment to refill than to buy a new one every time it's empty.");
+    }
+
+    /**
+     * This method returns a random hint from the list of hints.
+     * @return the random hint.
+     */
+    public String randomHint() {
+        Random rand = new Random();
+        int index = rand.nextInt(hints.size());
+        return hints.get(index);
+    }
+
+}

src/Client/src/main/java/greenify/client/controller/CalculatorController.java

@@ -9,9 +9,7 @@ import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
-import javafx.fxml.FXMLLoader;
 import javafx.scene.Node;
-import javafx.scene.Parent;
 import javafx.scene.control.Button;
 import javafx.scene.control.CheckBox;
 import javafx.scene.control.Label;
@@ -338,7 +336,8 @@ public class CalculatorController {
     @SuppressWarnings("Duplicates")
     public void displayExtra(ActionEvent event) throws IOException {
 
-        //        Parent extra = FXMLLoader.load(getClass().getClassLoader().getResource("fxml/extraActivities.fxml"));
+        //        Parent extra = FXMLLoader.load(getClass().getClassLoader()
+        //        .getResource("fxml/extraActivities.fxml"));
         //        extraPane.getChildren().setAll(extra);
         getStartedPane.setVisible(false);
         travelPane.setVisible(false);

src/Client/src/main/java/greenify/client/controller/DashBoardController.java

@@ -495,4 +495,5 @@ public class DashBoardController {
         }
 
     }
+
 }

src/Client/src/test/java/HintsTest.java

@@ -0,0 +1,29 @@
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.assertFalse;
+
+import greenify.client.Hints;
+import org.junit.Test;
+
+public class HintsTest {
+    @Test
+    public void initHintsTest() {
+        Hints test = new Hints();
+        assertFalse(test.hints.isEmpty());
+    }
+
+    @Test
+    public void hintsContainsTest() {
+        Hints test = new Hints();
+        assertTrue(test.hints.contains("27,000 trees are cut down "
+                + "each day so we can have toilet paper."));
+    }
+
+    @Test
+    public void randomHintTest() {
+        Hints test = new Hints();
+        String random = test.randomHint();
+        assertTrue(test.hints.contains(random));
+    }
+}
+
+