Dynamically find the class that represents a primitive Java type

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The Class instances for the primitive types are obtainable as you said using e.g. int.class, but it is also possible to get the same values using something like Integer.TYPE. Each primitive wrapper class contains a static field, TYPE, which has the corresponding primitive class instance.

You cannot obtain the primitive class via forName, but you can get it from a class which is readily available. If you absolutely must use reflection, you can try something like this:

Class clazz = Class.forName("java.lang.Integer");
Class intClass = clazz.getField("TYPE").get(null);

intClass.equals(int.class);         // => true

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