How to run a Java program using Command Prompt First things first, you will have to write the code that you want to run and save that as a Java executable file.

Apache Tomcat is a servlet engine that runs Java web applications, which are packaged as web application archive files, or WARs. A WAR file is the one that’s deployed to Tomcat, not a JAR file. But, ...

Learn how to optimize JVM and JIT compiler performance for better execution speed, memory usage, and resource utilization in your Java applications—and how to check your results.

Get to know the Java persistence standard based on Hibernate and learn how to use JPA to store and manage Java objects in a relational or NoSQL database.