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java_base_version="8"
java_sub_version="161"
java_base_build="12" # 다운로드 링크를 보면 URL에 나옴
 
java_version="${java_base_version}u${java_sub_version}"
java_build="b${java_base_build}"
java_version_with_build="${java_version}-${java_build}"
 
# download
wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" "http://download.oracle.com/otn-pub/java/jdk/${java_version_with_build}/jdk-${java_version}-linux-x64.rpm"
 
wget --no-cookies --no-check-certificate --header “Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie”  "http://download.oracle.com/otn-pub/java/jdk/${java_version_with_build}/jdk-${java_version}-linux-x64.rpm"
# install
sudo rpm -i jdk-${java_version}-linux-x64.rpm
 
# alternatives 등록
sudo /usr/sbin/alternatives --install /usr/bin/java java /usr/java/jdk1.${java_base_version}.0_${java_sub_version}/bin/java 20000
 
# set as default 화면에서 선택
sudo /usr/sbin/alternatives --config java
 
# 확인
java -version
 
# .bashrc 혹은 .bash_profile 에 환경변수 등록
export JAVA_HOME=/usr/java/default