Method getAsNumber

gson/src/main/java/com/google/gson/JsonArray.java:251–254

Convenience method to get this array as a {@link Number} if it contains a single element. This method calls {@link JsonElement#getAsNumber()} on the element, therefore any of the exceptions declared by that method can occur. @return this element as a number if it is single element array. @throws Il

()

   * @throws IllegalStateException if the array is empty or has more than one element.
   */
  @Override
  public Number getAsNumber() {
    return getAsSingleElement().getAsNumber();
  }

  /**
   * Convenience method to get this array as a {@link String} if it contains a single element. This