Feature of Java

• Easy to learn.

Programming language + Object-oriented concept(C++, java,python,JS,...)

• Automatic Memory Management : GC(Garbage Collector)

: 메모리를 쓰고 반환하지 않아도 된다.

• Multi-thread

: Send and recieve files while chatting

• Rich libraries : easy to develop

• Independent regardless of OS

The reason why Java program is runable is JVM(Java Virtual Machine).

Write once, run anywhere!

*JVM : 자바 프로그램이 실행되는 가상의 컴퓨터.

JVM;Virtual Machine on which Java Application runs