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Linked Lists (Java Collections framework)

Asa Fernando

Joined: Dec 05, 2005
Posts: 1
When I write a simple java program to add elements to the java.util.LinkedList; class using add(0,i1) I get the following warning.

C:\Asanak\Project>javac -Xlint:unchecked warning: [unchecked] unchecked call to add(int,E) as a member of
the raw type java.util.LinkedList
1 warning

Can someone pls help me out. Thanks in advance.
Ernest Friedman-Hill
author and iconoclast

Joined: Jul 08, 2003
Posts: 24199


Welcome to JavaRanch!

You're using a Java 5 compiler, and Java 5 has generics. Basically, Java now lets you specify what kind of objects that LinkedList can hold, and the warning is telling you that you're not taking advantage of that feature. Read the article for more info.

By the way, I deleted a copy of this message from the Java in General (Intermediate) forum. For an explanation, please read this.

[Jess in Action][AskingGoodQuestions]
I agree. Here's the link:
subject: Linked Lists (Java Collections framework)
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