Can Delete Semester on Right click menu

backend/src/main/java/com/example/backend/anwprj/DataBaseHandler.java

@@ -307,6 +307,18 @@ public class DataBaseHandler
         }
     }
 
+    public void deleteSemester(int id)
+    {
+        try
+        {
+            st.executeUpdate("delete from semester where id=" + id);
+        }
+        catch(Exception e)
+        {
+
+        }
+    }
+
     public Semester resultSetToSemester(ResultSet rs)
     {
         try

backend/src/main/java/com/example/backend/anwprj/controller/SemesterController.java

@@ -121,4 +121,16 @@ public class SemesterController
 
         return new ResponseEntity<>(HttpStatus.FORBIDDEN);
     }
+
+    @CrossOrigin
+    @DeleteMapping("/semester")
+    public void deleteSemester(@RequestParam(name="sessionid") String sessionid, @RequestParam(name="id") int id)
+    {
+        User u = UserSessionIDHandler.getUserBySessionID(sessionid);
+        if(u != null && u.getPermissions() == UserPermissions.admin.getValue())
+        {
+            db.deleteSemester(id);
+        }
+
+    }
 }