Multiple classes in an (undefined) ArrayList?

Processing Beginners
14

You can get any object to report the class it was instantiated from

// Object hierarchy
class A{ }
class B extends A { }
class C extends B { }

// Declare 3 variables of type A
A a,b,c;

// Now instantiate an object from each class
a = new A();
b = new B();
c = new C();

// Get each object to report its class name
println(a.getClass().getSimpleName());
println(b.getClass().getSimpleName());
println(c.getClass().getSimpleName());
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