Ubuntu 13.10에서 apt-get으로 oracle jdk 설치[안됨]

https://help.ubuntu.com/community/Java . The simplest one listed is this one:

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer

It’ll keep your java 7 installation up to date. To automatically set up the Java 7 environment variables JAVA_HOME and PATH:

sudo apt-get install oracle-java7-set-default

에러나는경우 sha256코드어쩌고

sudo rm /var/lib/dpkg/info/oracle-java7-installer* sudo apt-get purge oracle-java7-installer* sudo rm /etc/apt/sources.list.d/*java* sudo apt-get update sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java7-installer