Третья и четвертая не соответствует условию. хотя третья выводиться вроде правильно, а четвертая почему то вообще null
Строка про папу (третья) должна соответствовать условию.
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 granddadName = reader.readLine();
Cat catGranddad = new Cat(granddadName);
String grandmotherName = reader.readLine();
Cat catGrandmother = new Cat(grandmotherName);
String dadName = reader.readLine();
Cat catDad = new Cat(dadName,null,catGrandmother);
String motherName = reader.readLine();
Cat catMother = new Cat(motherName,catGrandmother,null);
String sonName = reader.readLine();
Cat catSon = new Cat(sonName, catMother, catDad);
String daughterName = reader.readLine();
Cat catDaughter = new Cat(daughterName, catMother, catDad);
System.out.println(catGranddad);
System.out.println(catGrandmother);
System.out.println(catDad);
System.out.println(catMother);
System.out.println(catSon);
System.out.println(catDaughter);
}
public static class Cat {
private String name;
private Cat parent;
private Cat parent2;
Cat(String name) {
this.name = name;
}
Cat(String name, Cat parent) {
this.name = name;
this.parent = parent;
}
Cat(String name, Cat parent, Cat parent2) {
this.name = name;
this.parent = parent;
this.parent2 = parent2;
}
@Override
public String toString() {
if (parent == null&& parent2 == null)
return "Cat name is " + name + ", no mother " + ", no father ";
if(parent == null && parent2 != null)
return "Cat name is " + name + ", no mother "+ " father is " + parent2.name;
if(parent != null && parent2 != null)
return "Cat name is " + name + ", mother is " + parent.name+ " father is " + parent2.name;
else return null;
}
}
}