Java Core Class (Type, File)

5. New Features 1.8

1. Lambda expressions overview, best practice.

2. Expressing optionality with Optional feature.

3. Method References: defining Lambda Expressions by referring to methods directly. Best practice.

4. Functional Interface overview. Best practice.

5. Default methods overview. Best practice.

6. Date API overview.

7. Stream API overview.

Design Patterns
1. MVC design pattern

1. Model-View-Controller pattern explanation.

2. Advantages and disadvantages of MVC.

3. Benefits of using MVC.

4. Spring MVC overview.
2. Proxy

1. What is Proxy pattern?

2. Typical Use Case.

3. Rules of thumb.

4. Different proxies overview.

3. Façade

1. What is Façade pattern?

2. Steps to implements

3. Façade vs Proxy.

4. Decorator

1. What is Decorator pattern?

2. Use case.

3. Rules to follow. Best practice.

4. Decorator vs Façade.

5. Singleton

1. What is Singleton pattern?

2. Ways to implement Singleton Class in Java.

3. Which classes are candidates of Singleton?

4. Double checked locking in Singleton.

5. Way to prevent another instance of Singleton, the same using reflection, the same using serialization.

6. When Singleton not a Singleton in Java?

7. Advantage of Singleton vs Static Class.

6. Factory

1. What is Factory patter?

2. Advantages and disadvantages of factory patter.

3. Why use a factory to instantiate a class?

4. Factory vs abstract factory.