install java in ububtu 20 code example

Example 1: how to install java 8 on ubuntu 20.04

sudo apt update
sudo apt install openjdk-11-jdk

sudo apt update
sudo apt install openjdk-8-jdk

Example 2: install java in ubuntu 20.04

# Java in ubuntu
# first check if java is already installed or not using 
java -version

# install openjdk (Java Development Kit)
sudo apt install default-jdk
# it will ask for confirmation...around 480 MB will be downloaded
# this will install both the latest jdk and jre of openjdk distribution

# check for java
java -version

#check for javac
javac -version

# If you only want to install jre and not jdk, just run
sudo apt install default-jre

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Java Example