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Which jre to use?

 
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I have code like (HashMap<String, variable> that I am getting compile
error on. What jre should I use for this?

Thanks.
 
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A variable name in that spot will not do - it has to be a class name. Generics (which this uses) were introduced in Java 5, so a JRE version 1.5 and higher is needed.

What is the exact error message you're getting?
 
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post the whole line of code, and the exact error you are getting
 
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