openjdk 설치하기

openjdk-7-jdk (64bit) 기준

1.

sudo apt-get remove --purge openjdk-6-*

2.

sudo apt-get install openjdk-7-jdk openjdk-7-jre icedtea-7-plugin

3.

update-java-alternatives -l

확인 후.

sudo update-java-alternatives -s java-1.7.0-openjdk-amd64