Compiler warning for TreeMap

[M Burke]

When I do the put() I get a warning in Java 1.5:

TreeMap vo = new TreeMap();

Object[] rc = (Object[]) irc.next();
Integer locOrder = (Integer) rc[0];
MenuItem mI = (MenuItem) rc[1];
vo.put(locOrder, mI);

"Type safety: The method put(Object, Object) belongs to the raw type TreeMap. References to generic type TreeMap<K,V> should be parameterized"

How do I resolve this?

[Jesper de Jong]

You should use generics to indicate the type of keys and values, a new feature of Java 1.5.

TreeMap<Integer, MenuItem> vo = new TreeMap<Integer, MenuItem>();

[Joanne Neal]

Change the declaration to

TreeMap<Integer, MenuItem> vo = new TreeMap<Integer, MenuItem>();

Read up on Generics (a new Java 1.5 feature) to understand this.

[M Burke]

Thanks, that works. Is there a doc out there that talks about 1.5 changes?

[marc weber]

Originally posted by M Burke:
... Is there a doc out there that talks about 1.5 changes?

J2SE 5.0 in a Nutshell
[ October 06, 2005: Message edited by: marc weber ]

[Layne Lund]

Originally posted by M Burke:
Thanks, that works. Is there a doc out there that talks about 1.5 changes?

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