Adding an item if the condition inside the for loop is not reached

I want to add a new JsonObject inside a JsonArray if no items with the same name exist

I tried putting an else statement which creates the new object but every time I add an item it loops the whole array length and creates the object corresponding to the length of the array

              for (int x = 0; x < array.length(); x++) {
                  try {
                      if(conn.getName().equals(array.getJSONObject(x).getString("name"))) {
                          array.getJSONObject(x).put("quantity", array.getJSONObject(x).getInt("quantity") +1);
                          itemList.add((String) array.getJSONObject(x).getString("name") + "\n" + "₱" + array.getJSONObject(x).getInt("quantity"));
                          Toast.makeText(MainActivity.this, "The item was successfully added! ", Toast.LENGTH_SHORT).show();
                          adapter.notifyDataSetChanged();
                      }
                  } catch (Exception e) {
                      e.printStackTrace();
                  }
              }
          }