Implement a java class that represents a rectangle with fixed length and height. Length and height are should be provided parameters to the constructor. The rectangle should have methods to return its area and perimeter.

Add a static counter to your Rectangle class that counts the number of rectangle objects that have been created. Use this static counter to assign a unique ID to each rectangle object that has been created. For this you will have to introduce an additional ID attribute, rectangleID, as well as a corresponding getter method.