Я понимаю, что там где метод возвращает строчки для мамы и папы (ParentM == null) и (ParentP == null ) это не правильно, ибо у них нет таких переменных в конструкторе, у них там ( name , older ) у обоих, но я не могу сделать два конструктора с одинаковым количеством стрингов. Что делать ?
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 GrandPaName = reader.readLine();
Cat catGrandPa = new Cat(GrandPaName);
String GrandMaName = reader.readLine();
Cat catGrandMa = new Cat(GrandMaName);
String papaName = reader.readLine();
Cat catPapa = new Cat(papaName, GrandPaName);
String motherName = reader.readLine();
Cat catMother = new Cat(motherName, GrandMaName);
String sunName = reader.readLine();
Cat catSun = new Cat(sunName, motherName, papaName);
String daughterName = reader.readLine();
Cat catDaughter = new Cat(daughterName, motherName, papaName);
System.out.println(catGrandPa);
System.out.println(catGrandMa);
System.out.println(catPapa);
System.out.println(catMother);
System.out.println(catSun);
System.out.println(catDaughter);
}
public static class Cat {
private String name;
private String parentM;
private String older;
private String parentP;
Cat(String name) {
this.name = name;
}
Cat(String name, String older) {
this.name = name;
this.older = older;
}
Cat(String name, String parentM, String parentP) {
this.name = name;
this.parentM = parentM;
this.parentP = parentP;
}
@Override
public String toString() {
if (parentM == null && older == null && parentP == null )
return "The cat's name is " + name + ", no mother, no father";
else if (parentP == null)
return "The cat's name is " + name + ", no mother, father is " + older;
else if (parentM == null)
return "The cat's name is " + name + ", mother is " + older + ", no father";
else
return "The cat's name is " + name + ", mother is " + parentM + ", father is " + parentP;
}
}
}