Java-study-alone with JUnit

basic usage what I need..

1. Collections Example

List

1. Immutable - Guava, IntStream

2. Partitioning - not Collection API, but Guava..

3. NullsAndDuplicates Remove - Plain Java, Guava, Lambda

2. Pattern

Singleton

1. EagerInitialization

2. EnumInitialization

3. InitializationOnDemandHolderIdiom

4. LazyInitialization

5. ThreadSafeInitialization

Command

1. Clasic Command Pattern - Command / Receiver / Invoker / Client

3. Thread

1. Concurrent - Basic about Thread, Runnable

4. Generics

1. Type T
2. WildCard(?)
3. Upper/Lower Bound

4. JAVA8

1. Lamda expression (Consumer, Supplier, Function, Operator, Predicate)

## TODO ##

I'll add What I Need!!!

• I
• Do
• Not
• Know
• It's
• Up
• To
• Me
• Sorry
• Lambda expression (Operator, Predicate)
• Stream API