Worning: LinkedList is Raw datatype. References to generic type LinkedList<E> should be parametrized

[minal silimkar]

    
LinkedList data=new LinkedList();

This line shows warning in eclipse.

LinkedList is Raw datatype. References to generic type LinkedList<E> should be parametrized

In command prompt, it does not show any warning.

After adding object, it removes error.

    
LinkedList<Object> data=new LinkedList<Object>();

[Mehar Simhadri]

Hi
You have to use any collection with parameters

look at this http://java.sun.com/j2se/1.5.0/docs/guide/language/generics.html for more information


-Mehar

[Campbell Ritchie]

You are right that you ought to use Lists with parameters, but it is not absolutely compulsory. That is why you receive a warning, not a compiler error, for missing out the parameters.
Another nice reference about generics is here, in the Java Tutorials, and you can find another useful resource by googling for "Angelika Langer Java generics FAQ."

[minal silimkar]

Thank you Mehar and Campbell for explaination and sending the refernces.

[Campbell Ritchie]

You're welcome