Java Generics incompatible types linkedlist iterators -

trying create iterator generic linked list. when attempt create 'current' node purpose of iterating through list based upon head sentinel, incompatible type error. here's relveant lines

public class linkedlist<t> implements iterable<t> {     private node<t> headsent;     private node<t> tailsent;      public distanceeventlist()     {         headsent = new node<t>();         tailsent = new node<t>();         headsent.setnext(tailsent);         tailsent.setprevious(headsent);     }     public node<t> getheadsent()     {         return headsent;     }     ...     public myiterator<t> iterator() {         return new myiterator<t>();     }     public class myiterator<t> implements iterator<t>     {         private node<t> current = getheadsent();         public t next() {             current = current.getnext();             return current.getdata();         }     private class node<t> {         private t data;         private node<t> next;         private node<t> previous;             ...         public node<t> getnext()         {             return next;         }     } } 

and error produced

linkedlist.java:65: error: incompatible types private node<t> current = getheadsent(); required: linkedlist<t#1>.node<t#2) found: linkedlist<t#1>.node<t#1) 

seems i've introduced 2 different types of t, i'm not experienced generics know sure. code above enough identify error (it's quite gutted). thanks!

you have 2 types same name.

inner classes share type variables declared in outer class. when have

public class myiterator<t> implements iterator<t> //                     ^^^ 

the new type declaration <t> shadows outer one.

private node<t> current = getheadsent(); //      ^^^^^^^           ^^^^^^^^^^^ //      inner t             outer t 

you can remove declaration:

public class myiterator implements iterator<t> //                    ^^^