Hello world jse program on ubuntu 16.04

• Add repository "sudo add-apt-repository ppa:openjdk-r/ppa"
• Run "apt update" command to update libraries
• Install by running "sudo apt install openjdk-7-jdk"
• Run "java -version" to check the installation. It should print as below

java version "1.7.0_95"
OpenJDK Runtime Environment (IcedTea 2.6.4) (7u95-2.6.4-3)
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)

• To create a hello world program, run "nano HelloWorld.java"
• On the opened editor paste the program and save it
• Run "javac HelloWorld.java" to compile the code
• Run "java HelloWorld" to see the "Hello, World" result