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Question about the task

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I've gone over this repeatedly, but can't find the mistake. It keeps coming back saying it can't find a constructor for father. I would really appreciate some advice on what I did wrong and how to fix it.

Task: Each cat has a name and a mother.
Create a class that describes this situation.
Create two objects: a daughter cat and a mother.
Display them on the screen.

New task: Each cat has a name, a father, and a mother.
Edit Cat so that it reflects these relationships.
Create 6 objects: grandfather (the father's father), grandmother (the mother's mother), father, mother, son, daughter.
Display them all in the following order: grandfather, grandmother, father, mother, son, daughter.

Example input:
Grandfather Tiger Grandmother Puss Father Oscar Mother Missy Son Simba Daughter Coco

Example output:
The cat's name is Grandfather Tiger, no mother, no father The cat's name is Grandmother Puss, no mother, no father The cat's name is Father Oscar, no mother, Grandfather Tiger is the father The cat's name is Mother Missy, Grandmother Puss is the mother, no father The cat's name is Son Simba, Mother Missy is the mother, Father Oscar is the father The cat's name is Daughter Coco, Mother Missy is the mother, Father Oscar is the father

Requirements:

The program should read in the names of 6 cats in the specified order.
The main method should create 6 Cat objects.
The program should display 6 lines with information about the cats.
The line about the grandfather (first line) must match the conditions.
The line about the grandmother (second line) must match the conditions.
The line about the father (third line) must match the conditions.
The line about the mother (fourth line) must match the conditions.
The line about the son (fifth line) must match the conditions.
The line about the daughter (sixth line) must match the conditions.

package com.codegym.task.task06.task0621; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; /* Cat relations */ public class Solution { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String grandFatherName = reader.readLine(); Cat catGrandFather = new Cat(grandFatherName); String grandMotherName = reader.readLine(); Cat catGrandMother = new Cat(grandMotherName); String fatherName = reader.readLine(); Cat catFather = new Cat(fatherName, catGrandFather); String motherName = reader.readLine(); Cat catMother = new Cat(motherName, catGrandMother); String sonName = reader.readLine(); Cat catSon = new Cat(sonName, catMother, catFather); String daughterName = reader.readLine(); Cat catDaughter = new Cat(daughterName, catMother, catFather); System.out.println(catGrandFather); System.out.println(catGrandMother); System.out.println(catFather); System.out.println(catMother); System.out.println(catSon); System.out.println(catDaughter); } public static class Cat { private String name; private Cat mother; private Cat father; public Cat(String name) { this.name = name; } public Cat(String name, Cat father, Cat mother) { this.name = name; this.father = father; this.mother = mother; } @Override public String toString() { if ((mother == null) && (father == null)) return "The cat's name is " + name + ", no mother " + ", no father"; else if ((mother == null) && (father != null)) return "The cat's name is " + name + ", no mother" + father.name + "is the father"; else if ((mother != null) && (father == null)) return "The cat's name is " + name + ", " + mother.name + " is the mother" + ", no father"; else return "The cat's name is " + name + ", " + mother.name + " is the mother" + ", " + father.name + " is the father"; } } }

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Carli Eubanks

Level 15 , San Diego, United States

26 September 2020, 23:12

Thank you! That's very helpful!

tech6@saisd.us

Level 3 , Atlanta, United States

26 September 2020, 21:46

A constructor can only be used if every argument is satisfied within, so you will need to actually make two constructors: one for creating the father object, and one for the mother object. The reason for this is because each only have one parent, but they are different sexes. I hope this helps.