JDK 8 is a superset of JRE 8, and contains everything that is in JRE 8, plus tools such as the compilers and debuggers necessary for developing applets and applications.
값을 변경할 수 없는 상수가 된다.
The has undergone several changes since 1.
2, DOM Level 3, and XSLT with a fast XSLTC compiler.
Catching multiple exception types and rethrowing exceptions with improved type checking• 1 with Namespaces, XML Schema, SAX 2.