Apache ActiveMQ is an free and open source message broker, Developed by: Apache Software Foundation, Written in C, C++, Java, Ruby, Perl, Python, PHP, C#. Installing Java sudo -iapt-get updateapt-get install default-jdk -y Get Java version java -version You should get output like this. openjdk version “1.8.0_232″OpenJDK Runtime Environment (build 1.8.0_232-8u232-b09-0ubuntu1~16.04.1-b09)OpenJDK 64-Bit Server VM (build […]