Good enough x-axis, not smooth, but best i could do...

src/main/java/com/application/GUI/LineChartFunctionality.java

@@ -4,7 +4,6 @@ import javafx.scene.chart.CategoryAxis;
 import javafx.scene.chart.LineChart;
 import javafx.scene.chart.NumberAxis;
 import javafx.scene.chart.XYChart;
-import javafx.scene.shape.Line;
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
@@ -21,11 +20,12 @@ public class LineChartFunctionality {
         xAxis = new CategoryAxis();
         yAxis = new NumberAxis();
         lineChart = new LineChart<>(xAxis, yAxis);
-        xAxis.setLabel("Date");
+        xAxis.setLabel("Hours");
         xAxis.setAnimated(false);
         yAxis.setLabel("Kwh");
         yAxis.setAnimated(false);
         lineChart.setTitle("Drying Processes");
+        lineChart.setCreateSymbols(false);
     }
 
     public static void setLineChart(LineChart<String, Number> lineChart) {
@@ -44,7 +44,7 @@ public class LineChartFunctionality {
         lineChart.getData().clear();
     }
 
-    private static long findDifference(String start_date, String end_date) {
+    private static double findDifference(String start_date, String end_date) {
         // Defining a simple date format
         SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 
@@ -54,7 +54,7 @@ public class LineChartFunctionality {
             Date dateEnd = dateFormat.parse(end_date);
 
             // Finds the difference in millis
-            long differenceMillis = dateEnd.getTime() - dateStart.getTime();
+            double differenceMillis = dateEnd.getTime() - dateStart.getTime();
 
            // Finds the difference in minutes
             return (differenceMillis / (1000 * 60 )) % 60;
@@ -95,7 +95,7 @@ public class LineChartFunctionality {
 
                 minutes += findDifference(previouseDate, currentDate);
 
-                hours = (minutes/60);
+                hours = minutes/60;
                 System.out.println(hours);
                 previouseDate = currentDate;