Design an interface named Swimmer with a void method named howToSwim (). Every class of a swimmer object must implement the Swimmer interface. Design a class named Fish. Write an equals method for the Fish class; have it override the Object equals method. Two Fish are equal if they have the same values of the instance variables vertabrates (a Boolean) and edible (a String). Design a class named Goldfish that extends Fish and implements Swimmer. Implement howToSwim to display the message It is swimming. Then design a class named Comet that extends Fish and implements Swimmer. Implement howToSwim to display the message “It is swimming”. Draw a UML diagram that involves Swimmer, Goldfish, Comet and Fish. Write a test program that creates an array of five Fish objects. For each object in the array, display the result of equals method with another object of the same array and invoke its howToSwim method if it is swimmer.
Design an interface named Swimmer with a void method named howToSwim (). Every class of a
swimmer object must implement the Swimmer interface. Design a class named Fish. Write an equals
method for the Fish class; have it override the Object equals method. Two Fish are equal if they have
the same values of the instance variables vertabrates (a Boolean) and edible (a String).
Design a class named Goldfish that extends Fish and implements Swimmer. Implement howToSwim
to display the message It is swimming. Then design a class named Comet that extends Fish and
implements Swimmer. Implement howToSwim to display the message “It is swimming”.
Draw a UML diagram that involves Swimmer, Goldfish, Comet and Fish. Write a test
program that creates an array of five Fish objects. For each object in the array, display the result of
equals method with another object of the same array and invoke its howToSwim method if it is
swimmer.
Step by step
Solved in 3 steps with 1 images
