java decompiler online code example

Example: java decompiler

Tools for mac:
1- http://www.javadecompilers.com/
2- http://java-decompiler.github.io/

In terminal:
add permitions
chmod u+x d2j_invoke.sh
chmod u+x d2j-dex2jar.sh

Create java class in terminal
sh d2j-dex2jar.sh classes.dex