Please answer all of the questions ASAP (within 30 minutes). I will thumbs up/rate if it's correct. Please it's urgent.

//This is the first part answer Please answer second and third part according to first part

package SpecialQuiz;

public interface Swimmer {

void howToSwim();

} //

public class Fish implements Swimmer { private boolean vertabrates; private String edible; public Fish(boolean vertabrates, String edible) { super(); this.vertabrates = vertabrates; this.edible = edible; } @Override public void howToSwim() { } @Override public boolean equals(Object obj) { if (obj instanceof Fish) { Fish fish = (Fish) obj; return vertabrates == fish.vertabrates && edible.equals(fish.edible); } return false; } }

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 BubbleEye that extends Fish and implements Swimmer. Implement howToSwim to display the message "It is swimming". Draw a UML diagram that involves Swimmer, Goldfish, BubbleEye 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