- Difference between composition and aggregation?
- Types:
- Composition
- Aggregation
- Association
- has_a andis_a relation

- Design pattern
- Applying Design pattern for ATM dispenser application,

- Application of same in Java,

- Applying Design pattern for ATM dispenser application,
- modulus gives remainder: 2000 % 1000 = 1000
- Nesting is increasing,

- Q. How is same handled in Java?
- When applying Design pattern create UML diagram
- Google has option to go for just DSA upto SDE2 level.