Improves position interval label in SmartDeviceCreationPanel

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/view/popups/SmartDeviceCreationPopUp.java

@@ -126,7 +126,7 @@ public class SmartDeviceCreationPopUp extends JDialog {
 		tfName.setText(newDevice.getName());
 
 		JLabel lblXposition = new JLabel(
-				"x-position in [" + visualisationRadius + "," + (maxX - visualisationRadius) + "]:");
+				"x-position in [" + visualisationRadius + ", " + (maxX - visualisationRadius) + "]:");
 		lblXposition.setBounds(10, 30, 230, 16);
 		lblXposition.setToolTipText("Set the x position, which should be an integer in the given interval.");
 		lblXposition.setHorizontalAlignment(SwingConstants.RIGHT);
@@ -141,7 +141,7 @@ public class SmartDeviceCreationPopUp extends JDialog {
 		tfXposition.setInputVerifier(new IntegerInputValidator(visualisationRadius, maxX - visualisationRadius));
 
 		JLabel lblYposition = new JLabel(
-				"y-position in [" + visualisationRadius + "," + (maxY - visualisationRadius) + "]:");
+				"y-position in [" + visualisationRadius + ", " + (maxY - visualisationRadius) + "]:");
 		lblYposition.setBounds(10, 57, 230, 16);
 		lblYposition.setToolTipText("Set the y position, which should be an integer in the given interval.");
 		lblYposition.setHorizontalAlignment(SwingConstants.RIGHT);