Question

In Java*

Please implement a class called "MyPet". It is designed as shown in the following class diagram.

• Four private instance variables: name (of the type String), color (of the type String), gender (of the type char) and weight(of the type double).
• Three overloaded constructors:
  • a default constructor with no argument
  • a constructor which takes a string argument for name, and
  • a constructor with take two strings, a char and a double for name, color, gender and weight respectively.
• public getter and setter methods for each attribute.
• a public toString() method that returns short description or the instances.
• create multiple MyPet objects in the main function and call multiple methods for testing.

MyPet name: String -color: String |- gender: char weight: double + MyPet() +MyPet(name:String) +MyPet( name:String, color:String, gender:String, weight:double) +getName(): String +setName( name:String): void +getColor():String +setColor( color:String): void +getGender(): char +setGender(gender:char): void +getWeight(): double +setWeight( price:double): void +toString(): String

Answer 1

CODE:

​​​​​​

public class MyPet {

    private String name;
    private String color;
    private char gender;
    private double weight;

    public MyPet() {
        name = color = "";
        gender = ' ';
        weight = 0;

    }

    public MyPet(String name) {
        this.name = name;
        color = "";
        gender = ' ';
        weight = 0;
    }

    public MyPet(String name, String color, char gender, double weight) {
        this.name = name;
        this.color = color;
        this.gender = gender;
        this.weight = weight;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public char getGender() {
        return gender;
    }

    public void setGender(char gender) {
        this.gender = gender;
    }

    public double getWeight() {
        return weight;
    }

    public void setWeight(double weight) {
        this.weight = weight;
    }

    @Override
    public String toString() {
        return "Pet name: " + name + ", Color: " + color + ", Gender: " + gender + ", Weight: " + weight+" lbs.";
    }

    public static void main(String[] args) {

        MyPet aPet = new MyPet();
        System.out.println("aPet = " + aPet);
        aPet.setName("Pit");
        aPet.setColor("Red");
        aPet.setGender('F');
        aPet.setWeight(9.8);
        System.out.println("aPet = " + aPet);
        

        MyPet bPet = new MyPet("Bolt");
        System.out.println("bPet = " + bPet);


        MyPet cPet = new MyPet("Thunder","Black",'M',12);
        System.out.println("cPet = " + cPet);

    }
}

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