How to pass Class Type in method parameter in java

Asked Dec 29 '19 at 19:22

Active Dec 29 '19 at 19:26

Viewed 23 times

public <T> void doSomething(List<T> businessList) {
  for(T bank : businessList) {
    String name = bank.getName();
  }
}

I am getting the error below when calling getName() :

Cannot resolve method getName()

edited Dec 29 '19 at 19:26

baitmbarek

asked Dec 29 '19 at 19:22

stackmj18

2

bind `T` to some type having the method `public String getName()`. – Turing85 Dec 29 '19 at 19:25
Why don't you use an interface instead of `T` ? – baitmbarek Dec 29 '19 at 19:26
LIst can be List, List etc. – stackmj18 Dec 29 '19 at 19:31
1

To explain @turing85's comment, you need `List extends HasName>` and `interface HasName { public String getName(); }`. – chrylis -cautiouslyoptimistic- Dec 29 '19 at 19:41

0 Answers0