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, ...

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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 ...

Java's garbage collection features tend to confuse new developers. I wrote this two-part series on garbage collection to dispel that confusion. Part 1 introduced you to garbage collection ...

The above class runs through several popular Map implementations (EnumMap, HashMap, LinkedHashMap, TreeMap, Hashtable, WeakHashMap, ConcurrentHashMap) and prints out whether each Map ...