JavaDeveloperDiary — JDD

Command Pattern — get the gist in 2 min.

The Command Design Pattern is all about encapsulating a request as an object and passing…

Prototype design pattern — get the gist in 2 min.

understanding functional interface, thinking the functional way java 8.

why to use functional programming in java? object oriented vs functional programming in java ?

state design pattern — get the gist in 2 min

Do you have many if-else conditions in your class ? Is your object has many states…

Decorator Pattern — get the gist in 2 min.

In simple words, the decorator pattern helps attach different behaviors to the object…

Singleton design pattern — get the gist in 2 min

Facade Pattern — get the gist in 2 min.

The facade pattern is all about providing a high-level interface that makes other domain…

Observer Pattern — get the gist in 2 min.

The basic idea behind observer pattern is to have a publisher — subscriber like…