Obsidian/Recognition/Programing/Linux/Ubuntu/우분투 JAVA 설치.md

# OpenJDK8 설치
sudo apt-get install openjdk-8-jdk

# 설치 확인
java -version

# javac 위치 확인
which javac
	/usr/bin/javac
## 링크를 통해 실제 경로 확인
readlink -f /usr/bin/javac
	/usr/lib/jvm/java-8-openjdk-arm64/bin/javac

# profile 수정
sudo nano /etc/profile
	export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-arm64
	export PATH=$JAVA_HOME/bin:$PATH
	export CLASS_PATH=$JAVA_HOME/lib:$CLASS_PATH

# profile 적용
source /etc/profile

# 재부팅
sudo reboot now

# 환경변수 확인
echo $JAVA_HOME
$JAVA_HOME/bin/javac -version

#java 11 추가 설치
sudo apt-get install openjdk-11-jdk