Design Patterns by Gamma http://www.harding.edu/dsteil/345/examples/java/SingletonTest.java http://www.harding.edu/dsteil/345/examples/java/SingletonTest.java http://www.harding.edu/dsteil/345/examples/java/singleton.java http://www.harding.edu/dsteil/345/examples/java/singleton.java http://www.harding.edu/dsteil/345/examples/singleton.cpp http://www.harding.edu/dsteil/345/examples/singleton.cpp