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.

Learn how a Java JAR file (Java Archive) allows you to package compiled code and other resources in a single file that is easily deployed and executed resources.

How to Run JAR on an Android. Java archive files (JARs) let you import pre-coded libraries into your Android applications. JARs save time, because you can use the Java functions without writing ...