I get the recursive construct overflow invocation error at the four public tuna parts (parts=maybe a class or something else?). It worked on the tutorial but not for me and can\
You're doing a recursive call here:
public tuna(int h, int m, int s){
this(h,m,s); //with hours, minutes and seconds
}
You should set your private members in this constructor. It should be something like:
public tuna(int h, int m, int s){
this.h = h; //with hours, minutes and seconds
this.m = m;
this.s = s;
}