Casting (Cont’d)

if (animalArray[iIndex] instanceof Dog) {

d = (Dog) animalArray[iIndex];

d.bark( );

}

• Here, legality of each

line of code can be

evaluated at compile time.

• Legality of each line discernable without worrying about inter-statement dependencies, i.e., each line can stand by itself.

• Can be sure that code is legal  (not sometimes-legal).A Good Use for Casting:

Resolving polymorphic ambiguities  for the compiler.

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