Bob Herrmann Bob Herrmann - 1 year ago 89
Java Question

In Java, how do I dynamically determine the type of an array?

Object o = new Long[0]
System.out.println( o.getClass().isArray() )
System.out.println( o.getClass().getName() )
Class ofArray = ???

Running the first 3 lines emits;


How do I get ??? to be type long? I could parse the string and do a Class.forname(), but thats grotty. What's the easy way?

Answer Source

Just Write

Class ofArray = o.getClass().getComponentType();
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