Installing Java 11 in Amazon Linux

Many of the old Java applications have got stuck with JDK 1.8 itself due to several reasons. When possible, you should be migrating to JDK13 or at least JDK11.

Below steps will help you to install JDK 11 and check the java version also.

Step 1: 
Ensure you have internet connectivity from your Amazon EC2 instance. And, then type the below command

sudo amazon-linux-extras install java-openjdk11

The above command will install JDK11.

Step 2:
Type the below command to check the version

java -version

The result will be somthing like this

openjdk version "11.0.5" 2019-10-15 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.5+10-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.5+10-LTS, mixed mode, sharing)

Please note that from Java 9 onwards, the version numbering system has changed. For JDK1.8, the version number will be something like "1.8.0_192". For latest version, you wont see 1.x.y_zzz. For example, JD11, it will be like this "11.x.y"

Have fun!