Patika-PayCore BootCamp

Homework -1

1 – Why we need to use OOP ? Some major OOP languages ?
2 – Interface vs Abstract class ?
3 – Why wee need equals and hashcode ? When to override ?
4 – Diamon problem in Java ? How to fix it?
5 – Why we need Garbagge Collector ? How does it run ?
6 – Java ‘static’ keyword usage ?
7 – Immutability means ? Where, How and Why to use it ?
8 – Composition and Aggregation means and differences ?
9 – Cohesion and Coupling means and differences ?
10 - Heap and Stack means and differences ?
11 – Exception means ? Type of Exceptions ?
12 – How to summarize ‘clean code’ as short as possible ?
13 - What is the method of hiding in Java ?
14 - What is the difference between abstraction and polymorphism in Java ?