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Editorial Team
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Asked: 2026-05-19T01:37:22+00:00

Here’s something that’s got me a bit stumped but intrigued all the same. In

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Here’s something that’s got me a bit stumped but intrigued all the same. In my Android game I have various Levels that extend the superclass Level. What I am trying to do is build a levelDirectory (based on the Singleton DP) that essentially is an object that has a HashMap object within it that stores all the Level subclasses. Here is my question:

We’re all familiar with the enhanced for loop, but how can I write something that would be the equivalent of

for(Level l : An Array Of Every Level Subclass In My Project that is an Extension of the Level Superclass){

HashMap.put(l.name, l);

}

I am trying to build a system that can dynamically update itself when I add more and more level subclasses. I know having a method in Level that submitted itself to the static Directory and was called in the Level’s constructor is an option, But I’m just wondering whether there is a way of doing what I said above in that enhanced for loop?

Many thanks

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1 Answer

  1. Editorial Team

    1. The question itself is wrong. You cannot loop over List (“Every Level Subclass In My Project”) and get instances of Level. l should be Class.

    2. From the context, I think you meant “every instance of every Level subclass”. No, it is not possible – a virtual machine is not and should not be a database. You cannot just query for objects, you have to manage references in your code (but that you already knew that – your constructor solution will work).

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