Added edit shift method to edit shifts in the database.

SchedulerApp/src/main/java/com/example/schedulerapp/Schedule.java

@@ -31,39 +31,30 @@ public class Schedule {
             e.printStackTrace();
         }
     }
+
     /*
-    Name: removeShift
+    Name: removeShiftByID
     Parameters:
-        int ID: The employees unique ID.
-        Date: The date as a string in the form of "yyyy-mm-dd".
-        start: The employees shift start time.
-        end: The employees shift end time.
-    Description: Removes the employees shift matching the date, and shift duration.
+        int shiftID: The shift unique ID.
+    Description: Removes the employees shift matching the shift date.
     Return: none
      */
-    protected void removeShift(String ID, String date, int start, int end){
-        Date newDate = Date.valueOf(date);
+    protected void removeShiftByID(String shiftID){
         try {
             Statement myStatement = dbConnection.createStatement();
-            myStatement.executeUpdate("DELETE FROM shifts WHERE (employee_id =" + ID + ") " +
-                    "AND WHERE (date = " + newDate +") AND  WHERE (start_time = " + start + " ) " +
-                    "AND WHERE (end_time = " + end +")");
+            myStatement.executeUpdate("DELETE FROM shifts WHERE (shift_id =" + shiftID + ")");
         } catch (SQLException e) {
             e.printStackTrace();
         }
     }
 
-    /*
-    Name: removeShiftByID
-    Parameters:
-        int shiftID: The shift unique ID.
-    Description: Removes the employees shift matching the shift date.
-    Return: none
-     */
-    protected void removeShiftByID(String shiftID){
+    protected void editShift(Integer shift_id, String date, String start,String end){
+        Date newDate = Date.valueOf(date);
+        System.out.println(newDate);
         try {
             Statement myStatement = dbConnection.createStatement();
-            myStatement.executeUpdate("DELETE FROM shifts WHERE (shift_id =" + shiftID + ")");
+            myStatement.executeUpdate("update shifts set full_date='" + newDate + "',start_time=" + start + ",end_time=" + end
+                    + " where shift_id=" + shift_id);
         } catch (SQLException e) {
             e.printStackTrace();
         }