java design-patterns observer-pattern mvc-pattern java-8 builder-pattern factory-pattern adapter-pattern singleton-pattern bridge-pattern decorator-pattern facade-pattern prototype-pattern proxy-pattern flyweight-pattern composite-pattern fiter-pattern

observer-pattern mvc-pattern factory-pattern adapter-pattern singleton-pattern bridge-pattern decorator-pattern facade-pattern prototype-pattern proxy-pattern flyweight-pattern composite-pattern java-design-patterns fiter-pattern java-8-builder-pattern