[JAVA] 환경변수 설정하기

JAVA_HOME : "c:\Program Files\java\jdk1.x.xxx"


Path : "c:\Program Files\java\jdk1.x.xxx\bin" ->
           JAVA_HOME을 쓴다면 "%JAVA_HOME%\bin"


CLASSPATH : "c:\Program Files\java\jdk1.x.xxx\lib" ->
                        JAVA_HOME을 쓴다면 "%JAVA_HOME%\lib"