Practice›Java Fundamentals›Module 7. Inheritance & Polymorphism›7.5 Type checks and casting

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Problem

7.5 Type checks and casting — capstone: the mixed zoo

Write a complete program with Animal, Dog (which adds fetch()) and Cat.

Read a count and that many pairs «kind name», store them all in one Animal[]. For each animal print fetch() if it is a dog, otherwise describe(). Finish by printing how many dogs there were.

For 3 then dog Rex cat Kit dog Bo:

Rex fetches
Kit is an animal
Bo fetches
2

fetch() is invisible through an Animal variable — check with instanceof, then cast.

1000 ms

256 Mb

Solution

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