java - Bound Mismatch on new object of generic class -

i have error occuring program assignment. in it, have create own generic

public class linkedlist<e extends comparable<t>> implements list<e> { 

the implemented interface is:

public interface list<e extends comparable<t>> { } 

now, whenever try create new object of type linkedlist follows:

linkedlist<termin> k = new linkedlist<termin>(); 

eclipse gives me following error:

• bound mismatch: type termin not valid substitute bounded parameter > of type
  linkedlist

the class declaration of class termin follows:

public class termin implements comparable<t> { } 

in case need constructor , variables of linkedlist object:

    private e item;     private linkedlist<e> next;  //constructor     public linkedlist() {         item = null;         next = null;     } 

with little google magic, found out there once bug involving generics in eclipse gave same error no reason.

i suppose of declarations aren't entirely correct.

the way code written, cannot compile number of reasons, including lack of specification of t type, not explicitly declared.

one solution remove t , replace known java type (e.g., object).

a more generic solution include t, means 2 generic types have used.

for latter case, code like:

// linkedlist class public class linkedlist<t, e extends comparable<t>> implements list<t, e> {     private e item;     private linkedlist<t, e> next;      // constructor     public linkedlist() {         item = null;         next = null;     }      public static void main(string[] args) {         // example statement, t = long.class , e = string.class         linkedlist<long, termin<string>> k = new linkedlist<long, termin<string>>();     } } 

and

// list interface     public interface list<t, e extends comparable<t>> { } 

and

// termin class public class termin<t> implements comparable<t> {     @override     public int compareto(t o) {         return 0; // actual comparison needs implemented     } }