java 컴파일 설정

1. 설치된 자바 리스트 확인
   

   jsk@ubuntu:~$ update-java-alternatives --list
   java-1.5.0-sun 53 /usr/lib/jvm/java-1.5.0-sun
   java-6-sun 63 /usr/lib/jvm/java-6-sun
     

2. 자바 설정(java, javac, javah, javadoc)
   

   jsk@ubuntu:~$ sudo update-alternatives --config java
   [sudo] password for jsk:

   There are 2 alternatives which provide `java'.

   Selection Alternative
   -----------------------------------------------
   *+       1 /usr/lib/jvm/java-6-sun/jre/bin/java
              2 /usr/lib/jvm/java-1.5.0-sun/jre/bin/java

   Press enter to keep the default[*], or type selection number: 1
   Using '/usr/lib/jvm/java-6-sun/jre/bin/java' to provide 'java'.

   
   
3. javac / javah / javadoc 동일하게 설정 
   

   sudo update-alternatives --config javac
   sudo update-alternatives --config javah
   sudo update-alternatives --config javadoc