java generics, how to extend from two classes? -

i want have class object, want force whatever class represents extend class , class b. can do

<t extends classa & classb> 

but not possible extend both classes, there way this?

in java cannot have class extends 2 classes, since doesn't support multiple inheritance. can have, so:

public class ...  public class b extends ...  public class c extends b ... 

in generic signature, can specify t must extend c: <t extends c>.

you give @ default methods (if working java 8), methods declared within interfaces, , in java, class can implement multiple interfaces.