Adding new Class to store and return results

src/gui/MainWindow.java

 package gui;
 
 import helper.GetDataFromCSV;
+import helper.Result;
 import javafx.application.Application;
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
 import javafx.scene.Scene;
-import javafx.scene.control.Button;
-import javafx.scene.control.Label;
-import javafx.scene.control.CheckBox;
-import javafx.scene.control.TextField;
+import javafx.scene.control.*;
 import javafx.scene.layout.VBox;
 import javafx.stage.FileChooser;
 import javafx.stage.Stage;
@@ -20,7 +20,9 @@ import java.util.Arrays;
 public class MainWindow extends Application {
     private FileChooser fileChooser = new FileChooser();
     private String filePath;
-    ArrayList list;
+    private ArrayList list;
+    private TableView<Result> table = new TableView();
+    ArrayList<Result> results = new ArrayList<>();
 
     @Override
     public void start(Stage primaryStage) {
@@ -60,6 +62,16 @@ public class MainWindow extends Application {
         mergeSortCheckBox.setText("Merge sort");
         mergeSortCheckBox.setSelected(true);
 
+        TableColumn dataColumn = new TableColumn("Data");
+        dataColumn.setMinWidth(300);
+        TableColumn resultDataColumn = new TableColumn("Result");
+        resultDataColumn.setMinWidth(300);
+        TableColumn timeColumn = new TableColumn("Time");
+        timeColumn.setMinWidth(100);
+
+        table = new TableView<>();
+        table.getColumns().addAll(dataColumn,resultDataColumn,timeColumn);
+
         Button startButton = new Button("Run tests");
         startButton.setOnAction(event -> {
             GetDataFromCSV dataFromCSV = new GetDataFromCSV();
@@ -70,13 +82,12 @@ public class MainWindow extends Application {
                 e.printStackTrace();
             }
             if(bubbleSortCheckBox.isSelected()){
+
                 double[] ar = dataFromCSV.getDoubleArrayFromListItem((ArrayList) list.get(0));
-                System.out.println(Arrays.toString(BubbleSort.bubbleSort(ar)));
+                double[] resultarr = BubbleSort.bubbleSort(ar);
                 System.out.println("Bouble sort will be executed");
+                table.setItems(getResults());
             }
-
-            double[] ar = dataFromCSV.getDoubleArrayFromListItem((ArrayList) list.get(0));
-            System.out.println(Arrays.toString(ar));
         });
 
         VBox layout = new VBox(15);
@@ -89,11 +100,18 @@ public class MainWindow extends Application {
                 insertionSortCheckBox,
                 quickSortCheckBox,
                 mergeSortCheckBox,
-                startButton);
+                startButton,
+                table);
 
         Scene mainScene = new Scene(layout, 700, 500);
 
         primaryStage.setScene(mainScene);
         primaryStage.show();
     }
+
+    public ObservableList<Result> getResults(){
+        ObservableList<Result> results = FXCollections.observableArrayList();
+        results.add(new Result(new double[]{1,2,3},new double[]{1,2,3},BubbleSort.getBubbleSortExecutionResult()));
+        return results;
+    }
 }

src/helper/Result.java

+package helper;
+
+import javafx.collections.ObservableList;
+
+public class Result {
+    private double[] startData;
+    private double[] resultData;
+    private long executionStartTime;
+    private long executionEndTime;
+
+   public Result(){
+        this.startData = new double[]{};
+        this.resultData = new double[]{};
+        this.executionStartTime = 0;
+        this.executionEndTime = 0;
+    }
+
+   public Result(double[] startData, double[] resultData,long executionTime){
+        this.startData = startData;
+        this.resultData = resultData;
+        executionTime = getExecutionTime();
+    }
+
+    public void setExecutionStartTime() {
+        this.executionStartTime = System.currentTimeMillis();
+    }
+
+    public void setExecutionEndTime(){
+        this.executionEndTime = System.currentTimeMillis();
+    }
+
+    public long getExecutionTime(){
+        return this.executionEndTime - this.executionStartTime;
+    }
+}

src/sorting_algorithms/BubbleSort.java

 package sorting_algorithms;
+import helper.*;
 
 public class BubbleSort {
+    private static Result result = new Result();
+
     public static double[] bubbleSort(double[] array) {
+        result.setExecutionStartTime();
         int n = array.length;
         int k;
         for (int m = n; m >= 0; m--) {
@@ -12,6 +16,7 @@ public class BubbleSort {
                 }
             }
         }
+        result.setExecutionEndTime();
         return array;
     }
 
@@ -21,4 +26,8 @@ public class BubbleSort {
         array[i] = array[k];
         array[k] = tmp;
     }
+
+    public static long getBubbleSortExecutionResult(){
+        return result.getExecutionTime();
+    }
 }