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10 OOP Design Principles used in Stock Manager

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Inspired by the article "10 OOP Design Principles Every Programmer Should Know" which was written by @javinpaul, I built this project repository to implement the top Object Oriented Design principles in Java.  The top Object Oriented Design principles in Java, which are: Don't Repeat Yourself ( DRY ) Encapsulation S  ingle Responsibility Principle ( SRP ) O  pen Close Design Principle L  iskov Substitution Principle ( LSP ) I  nterface Segregation Principle ( ISP ) D  ependency Injection Favor Composition over Inheritance Programming for Interface not Implementation Delegation Principle The implementation is about Stock Price Quote which sounds like interesting and practical.