java return to specific point in program -

i have next question. have program has structure:

loadcontext(); showcategories(input); showprojects(input); showdetails(); 

on each step me user has ability jump previous step. example press 0 , program returns previos step. press 1 - program starts beginning. there instruments in java come specific point?

edit: have here console application. main method looks like:

loadcontext();//loads categories showcategories(input);//shows available categories , ask category show showprojects(input);// shows projects inside selested category , select project show in details showdetails();//show selected project 

now want set option. example, in showprojects(input) put 0 , see again categories, select , see category. in showdetails() select 0 , show categories, select 1 , on.

you can this:

1. wrap 4 methods in method:

      private void programstart(){        loadcontext();        showcategories(input);        showprojects(input);        showdetails();    } 

2. then have method this:

      private void processuserinput(int seloption) {        if(seloption == 0){            showcategories();        }        else if(seloption == 1){            programstart();        }        else{           system.out.println("unsupported option");                          }    }   

3. at end of each of methods want have option available:

   a. read option users
   b. call processuserinput(input) input