HashMap vs. Hashtable similarities Both the Hashtable and HashMap implement the Map interface and both share the same set of methods used to add, remove and manipulate elements of a key-value, ...

In Java 1.0 and 1.1, the two primary collection classes were Vector and Hashtable, and the Iterator design pattern was implemented in a class called Enumeration.

I have the following variable:Hashtable contentDirectories = new Hashtable();I have subsequently filled the hashtable with 1 or more entries as such:code:public void addDirectory(String configInfo ...