Singleton pattern (Java design pattern)
Singleton pattern It creates only one instance of a class, not allow to create a 2nd instance. How to create a Singleton pattern 1. Create a 'static' object of a class 2. Create private constructor to prevent that a user creates an instance with a default constructor. ※ The default constructor is called when an instance is created. the default constructor is public by default. 3. Create a 'stati..
JAVA
2019. 7. 10. 05:20
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