...When you runed the Decompiler than created an folder with all Files from then APK and the dex (dalvik executable format) being converted to an jar file. You must only now use an Java Decompiler like jd-gui and you have all files of the App.
This is a programming language dedicated toward teaching beginning programmers proper concepts and helping them adjust to more complex languages such as C++ or Java. BOLT uses a syntax similar you BASIC to help the programs written in BOLT to be more user friendly.