My experience in taking OCP Java SE 11 Developer, Introduction As an experienced Java Developer, It was an opportunity for me to take the discounted exam (90% off) starting from Fe...

Metodos Virtuales en Java,'Java virtual method' son metodos que una subclase hereda de una clase padre y que pasan a ser sobrescritos dandole un comportamiento polimorfo. Este proc...

Open / Closed Principle,The open closed principle is the O in the SOLID principles. It was created by Bertrand Meyer and states: Software entities should be open for extension, but...