Added Singleton Design pattern implementation in Java and its test #754
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yanglbme
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May 14, 2019
src/test/java/com/designpatterns/singletonpattern/SingletonTest.java
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…t.java Removed println statement Co-Authored-By: Libin Yang <contact@yanglibin.info>
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The singleton pattern is a design pattern that restricts the instantiation of a class to one "single" instance.
This is useful when exactly one object is needed to coordinate actions across the system. The term comes from the mathematical concept of a singleton.