Java中的接口继承
JAVA中类不能多继承，接口继承实现这个功能SSH框架的DAO
interface Dao<T>
BaseHibernateDao<T> extends HibernateDaoSupport implements Dao<T>
interface **Dao extends Dao
**DaoImpl extends BaseHibernateDao implements **Dao
public interface A
{
public void run();
}public interface B extends A
{
public void say();
}public interface C
{
public void say();
}public class Test1 implements B
{
public void say(){}
public void run(){}
}public class Test2 implements A,C
{
public void say(){}
public void run(){}
}