Не понимаю в чем проблема...
package com.javarush.task.task02.task0212;
/*
Великолепная восьмерка
*/
public class Solution {
public static void main(String[] args) {
Cat cat11 = new Cat();
Cat cat13 = new Cat();
Cat cat14 = new Cat();
Cat cat15 = new Cat();
Cat cat16 = new Cat();
Cat cat17 = new Cat();
Cat cat12 = new Cat();
Cat cat8 = new Cat();
Cat cat10;
Cat cat9;
Cat cat7;
Cat cat6;
Cat cat5;
Cat cat4;
Cat cat3;
Cat cat2;
Cat cat1;
Cat cat0;
}
public static class Cat {
}
}