Chapter 8. Datatypes and Type Checking

So far, we've developed our virtual zoo program without making a single coding error. Error-free development happens in training courses and books—and nowhere else. In real-world development, programmers make errors all the time. For example, when invoking eat( ) on a VirtualPet object, a programmer might make a typographical error, such as the following (notice the extra "t"):

pet.eatt(new Sushi())