I have three classes which all make different works but I need to run them together. When I run all of them in one class I just get one console and cant change this console. Wha
Obscure question. But it seems that you need separate console outputs for your classes. I don't think it is possible. That is operating system restriction. If operating system supported that you could somehow create additional consoles.
As a solution you can give your classes PrintStream object which they will use to output data.