Declaring a LinkedList in Java

Question

I always learn when we declare a collection we should do, Interface ob = new Class(), if i want to use for example a LinkedList i\'ll do List ob = new LinkedL

Answer 1

the rule "always code to interfaces" must be taken with some flexibility. what you are suggesting is fine, and as you came to the conclusion, the only option.

as a side note, coding to concrete classes like this is faster is most JVMs. deciding whether the performance is worth breaking the rule is the hard thing to decide.