Added a DatePicker to the dialog box for testing

src/main/java/no/ntnu/idatt1002/demo/controller/AddExpenseController.java

 package no.ntnu.idatt1002.demo.controller;
 
 import java.text.NumberFormat;
+import java.time.LocalDate;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.event.ActionEvent;
@@ -8,6 +9,7 @@ import javafx.fxml.FXML;
 import javafx.scene.Node;
 import javafx.scene.control.Button;
 import javafx.scene.control.ComboBox;
+import javafx.scene.control.DatePicker;
 import javafx.scene.control.TextField;
 import javafx.stage.Stage;
 import no.ntnu.idatt1002.demo.data.Economics.Expense;
@@ -15,7 +17,7 @@ import no.ntnu.idatt1002.demo.data.Economics.ExpenseCategory;
 public class AddExpenseController {
   Expense newExpense = null; //the expense that is chosen when editing or the expense that is created when adding
 
-  Expense oldExpense = null; //an expense that is meant to track the old state of an expense before editing, in case cancel bugtton is clicked
+  Expense chosenExpense = null; //an expense that is meant to track the old state of an expense before editing, in case cancel bugtton is clicked
   @FXML
   private Button cancelBtn;
 
@@ -25,6 +27,9 @@ public class AddExpenseController {
   @FXML
   private TextField dateField;
 
+  @FXML
+  private DatePicker datePicker;
+
   @FXML
   private TextField descriptionField;
 
@@ -70,13 +75,16 @@ public class AddExpenseController {
 
   @FXML
   public void pressOkBtn(ActionEvent event) {
-    String date = dateField.getText();
-    double amount = Double.parseDouble(amountField.getText());
-    String description = descriptionField.getText();
-    ExpenseCategory category = getCategory();
-    boolean recurring = isRecurring();
-    newExpense = new Expense(description, amount, recurring, category, date);
-    System.out.println(date + " " + amount + " " + description + " " + category + " " + recurring);
+    if (newExpense == null) {
+      String date = dateField.getText();
+      double amount = Double.parseDouble(amountField.getText());
+      String description = descriptionField.getText();
+      ExpenseCategory category = getCategory();
+      boolean recurring = isRecurring();
+      newExpense = new Expense(description, amount, recurring, category, date);
+      System.out.println(date + " " + amount + " " + description + " " + category + " " + recurring);
+    }
+
 
     final Node source = (Node) event.getSource();
     ((Stage) source.getScene().getWindow()).close();

src/main/resources/view/AddExpense.fxml

@@ -3,6 +3,7 @@
 <?import javafx.geometry.Insets?>
 <?import javafx.scene.control.Button?>
 <?import javafx.scene.control.ComboBox?>
+<?import javafx.scene.control.DatePicker?>
 <?import javafx.scene.control.DialogPane?>
 <?import javafx.scene.control.Label?>
 <?import javafx.scene.control.TextField?>
@@ -33,7 +34,6 @@
             <Label text="Description:" GridPane.rowIndex="2" />
             <Label text="Category" GridPane.rowIndex="3" />
             <Label text="Recurring" GridPane.rowIndex="4" />
-            <TextField fx:id="dateField" promptText="1/1/23" GridPane.columnIndex="1" />
             <TextField fx:id="amountField" promptText="100" GridPane.columnIndex="1" GridPane.rowIndex="1" />
             <TextField fx:id="descriptionField" promptText="(optional)" GridPane.columnIndex="1" GridPane.rowIndex="2" />
             <ComboBox fx:id="categoryBox" prefWidth="150.0" promptText="Food" GridPane.columnIndex="1" GridPane.rowIndex="3" />
@@ -47,6 +47,8 @@
                   <Insets top="20.0" />
                </GridPane.margin>
             </HBox>
+            <DatePicker fx:id="datePicker" GridPane.columnIndex="2" />
+            <TextField fx:id="dateField" GridPane.columnIndex="1" />
          </children>
       </GridPane>
    </content>