Added the mandelbrot calculator

src/ui/Controller.java

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+package ui;
+
+import javafx.event.ActionEvent;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
+import mandelbrotCalculator.MandelbrotSet;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+
+public class Controller {
+
+    public ImageView setPreview;
+
+    int currentFrame;
+
+    public void showImage(ActionEvent actionEvent) throws FileNotFoundException {
+
+        InputStream stream = new FileInputStream("C:\\Users\\nilsh\\IdeaProjects\\testStuff\\sequence/Sequence" + currentFrame + ".png");
+        Image image = new Image(stream);
+        setPreview.setImage(image);
+        currentFrame++;
+    }
+
+    public void startCalculation(ActionEvent actionEvent) {
+        MandelbrotSet m = new MandelbrotSet(2, 1, 3, 1);
+        m.startMandelbrot();
+    }
+}

src/ui/Main.java

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+package ui;
+
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+public class Main extends Application {
+
+    @Override
+    public void start(Stage primaryStage) throws Exception{
+
+        Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
+        primaryStage.setTitle("Mandelbrot");
+        primaryStage.setScene(new Scene(root, 500, 300));
+        primaryStage.show();
+
+    }
+
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+}

src/ui/sample.css

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+.root {
+    -fx-background-color: #AAAABA;
+}
+
+.label {
+    -fx-font-size: 25;
+}

src/ui/sample.fxml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.control.*?>
+<?import javafx.scene.image.*?>
+<?import javafx.scene.layout.*?>
+
+<GridPane alignment="center" hgap="10.0" prefHeight="143.0" prefWidth="107.0" stylesheets="/ui/sample.css" vgap="10" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="ui.Controller">
+    <Button onAction="#startCalculation" prefHeight="25.0" prefWidth="110.0" text="Start" GridPane.rowIndex="1" />
+   <ImageView fx:id="setPreview" fitWidth="100" preserveRatio="true" />
+   <columnConstraints>
+      <ColumnConstraints />
+   </columnConstraints>
+   <rowConstraints>
+      <RowConstraints />
+      <RowConstraints />
+   </rowConstraints>
+</GridPane>