You’ll Never Forget OOPS Relationships Again
Every strong system you build starts with strong fundamentals. Most people read these concepts. Few actually remember them in interviews. Here’s the simplest way to lock them in forever 👇 1. Assoc...
Source: DEV Community
Every strong system you build starts with strong fundamentals. Most people read these concepts. Few actually remember them in interviews. Here’s the simplest way to lock them in forever 👇 1. Association — “Just knowing each other” Two objects are related, but can exist independently. Example: A Teacher and a Student A teacher teaches students Both can exist without each other Memory trick: People in the same WhatsApp group 2. Aggregation — “Has-a (loose ownership)” One object contains another, but they can still live separately. Example: A Team has Players If the team is deleted, players still exist Memory trick: Company hires employees (they can resign) 3. Composition — “Has-a (strong ownership)” One object completely owns another. If parent dies, child dies. Example: A House has Rooms Destroy the house → rooms are gone Memory trick: Human body → organs 4. Inheritance — “Is-a relationship” One class inherits properties/behavior from another. Example: A Dog is an Animal Dog gets all c
