openjdk 1.8 install ubuntu 20.04 code example

Example 1: install openjdk 8 sdk on ubuntu

sudo apt-get install openjdk-8-jdk

Example 2: 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 3: install netbeans 8.2 ubuntu 20.04

sudo apt install default-jdk
sudo snap install netbeans --classic

#for remove netbeans
sudo snap remove netbeans