Question

I need to create runnable .jar file programmatically from a string. My decision is to create a .class file from string and add it to the .jar using JarOutputStream.

1. What API must I use to create the .class file?
2. Are there any other solutions to create a .jar from the source code?

Answer 1

In order to do that, you can use the Java Compiler API.

There is this excellent tutorial that can walk you through.