✅ Facade provide a 👍🏻 simplified, unified interface to a 👎🏻 complex subsystem define a high level interface that makes the subsystem easier to use 👎🏻 client interacts with many cl...

✅ use the handler chain to handle request client will only make request to the Interface Handler inside the chain of concrete handlers, it will handle the request 👍🏻 client will n...

✅ Real Object: 사장님, senior Proxy: 비서, junior 쉬운 일, 보안 필요 없는 일은 비서가 처리 Proxy 어려운 일이나 보안이 필요한 일은 사장님은 호출한다Real Object ✅ Types of proxy 1️⃣ Lazy initialization When creating the inst...

✅ Flyweight 👍🏻 memory optimization, efficiency minimize memory usage by sharing common object data if object is same, do not duplicate ❌ 똑같은 object이면 또 만들지 말고(메모리 낭비), 공유하자 What...

🛠️ add behavior to object dynamically without modifying their class wrap an object with another object(decorator) ✅ Structure and Diagram 👀 Like in HTML, we decorate text like <...

✅ Composite pattern 🌲 tree structure Client will not know if it is using composite or leaf can treat the groups of objects or individual objects in same manner 👉🏻 part whole hiera...

✅ Bridge decouple abstract and implementation bridge can connect abstract and concrete ✅ Structure bridge Abstraction -----> Implementor | | Refine...

👍🏻 Reusability of existing code can reuse existing code without having to modify it, thanks to a new adapter 👉🏻 OC principle One class does one thing, adapter class does the adapter work ...

✅ C:/ProgramFiles, c:/ProgramFiles x86 for storing applications if lower than 4GB, x86 ⚠️ you cannot delete the files manually ❌ you need to use CCleaner tool : piriform.com/ccleaner ...

✅ In windows official webpage choose the version 11, 10, 8.1, 7… rename the iso with details 👀 Wwindows1164b22H2 ✅ Choose descargar do not click on update actualizar ahora you will ...