warning: unchecked call to add(E) as a member of the raw type java.util.List

[Gus Spier]

MacBookPro OSX v 10.4.11
javac 1.5.0_13
java version "1.5.0_13"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_13-b05-241)
Java HotSpot(TM) Client VM (build 1.5.0_13-121, mixed mode, sharing)

google java.util.List to get the javadocs and look at java.util.List for java 2 Platform standard edition 5.0

find the entry for the "add" method and expect to see that it is deprecated and a recommendation for the new, accepted method of adding to an ArrayList ... but I don't see anything like a warning or deprecation notice.

What am I missing?

Regards,

Gus

PS: I am very appreciative of the time, trouble and patience you folk exhibit around here with your less experienced companeros. Thanks a lot.

[marc weber]

This message is because you are not using generics with your List. Note that this is only a warning -- not an error. Your code should still compile and run.

import java.util.*;
class ListWarn {
public static void main(String[] args) {
//old way, without using generics...
List uncheckedList = new ArrayList();
uncheckedList.add("abc");
//new way, using generics...
List<String> checkedList = new ArrayList<String>();
checkedList.add("def");
}
}

MacBookPro OSX v 10.4.11

Nice!

[Sandeep Nimmakuri]

ArrayList<type of variable> list = new ArrayList<type of variable>()
this will fix it you need to mention which type of list it is
e.g

ArrayList<String> step = new ArrayList<String>()
step.add("abc");
step.add("cde");

[Jesper de Jong]

Sandeep, welcome to JavaRanch.

Please note that you are responding to a topic from 2007. The original poster is most likely not still waiting for an answer.

[Geoffrey Lews]

I believe it is because you are not using generics in your code.

[Campbell Ritchie]

 

Geoffrey Lews wrote:. . . you are not using generics . . .

That's correct. And welcome to the Ranch