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HashMap problem

Vijay Chandran
Ranch Hand

Joined: Jan 07, 2007
Posts: 185

Dear friends,

I have created a HashMap with no type specifications.
HashMap hashmapObj = new HashMap();

But i want to put values with more than one type.
For example.

hashmapObj.put("key3",InetgerValue); etc.,

When i do like this, compiler produces a warning regarding type safety.
How to handle this without any warnings. I have a condition that i must return only one HashMap object.

Kindly provide your help.
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14668

Just create the map like this:

Map<String, Object> map = new HashMap<String, Object>();

Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 8 API documentation
Vijay Chandran
Ranch Hand

Joined: Jan 07, 2007
Posts: 185

Thank you very much Jesper
Have you tried LearnNowOnline?
subject: HashMap problem