우분투 Ubuntu Java 자바 설치

 

1. Ubuntu 버전 확인

$ lsb_release

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.3 LTS
Release:        20.04
Codename:       focal

 

 

 

2. Java 설치

$ sudo apt-get install openjdk-11-jdk

중간에 [Y/N] 물어보는데 그냥 Y 누르면 됨 

 

 

 

 

3. 설치 확인 

$ java -version
openjdk version "11.0.11" 2021-04-20
OpenJDK Runtime Environment (build 11.0.11+9-Ubuntu-0ubuntu2.20.04)
OpenJDK 64-Bit Server VM (build 11.0.11+9-Ubuntu-0ubuntu2.20.04, mixed mode, sharing)

또는 

$ javac -version
javac 11.0.11