Сижу 2 часа не могу понять
package com.javarush.task.task06.task0621;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/*
Родственные связи кошек
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String dedName = reader.readLine();
Cat catDed = new Cat(dedName);
String babName = reader.readLine();
Cat catBab = new Cat(babName);
String papName = reader.readLine();
Cat catPap=new Cat(papName,catDed);
String mamName = reader.readLine();
Cat catMam=new Cat(mamName,catBab);
String sonName=reader.readLine();
Cat catSon=new Cat(sonName,catPap,catMam);
String dauName = reader.readLine();
Cat catDau = new Cat(dauName, catPap,catMam);
System.out.println(catDed);
System.out.println(catBab);
System.out.println(catPap);
System.out.println(catMam);
System.out.println(catSon);
System.out.println(catDau);
}
public static class Cat {
private String name;
private Cat parentM;
private Cat parentF;
Cat(String name) {
this.name = name;
}
Cat(String name,Cat parent){
this.name=name;
if(parent.name.startsWith("дедушка"))
parentM=parent;
else
parentF=parent;
}
Cat(String name, Cat parentM, Cat parentF) {
this.name = name;
this.parentM = parentM;
this.parentF = parentF;
}
@Override
public String toString() {
if (parentM == null && parentF==null)
return "The cat's name is " + name + ", no mother, no father ";
else if(parentM == null)
return "The cat's name is " + name + ", mother is " + parentF.name+", no father";
else if(parentF == null)
return "The cat's name is " + name + ", no mother, father is " + parentM.name;
else
return "The cat's name is " + name + ", mother is "+parentF.name+", father is " + parentM.name;
}
}
}