Almost! How to print correctly?

Question about the task

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Hi! When I print the objects they are printed in an "ugly" way, with the hashcode (Cat@38c6f217). How can I solve this without the need of using a toString() method? And I've discovered in this task that when creating many objects, they don't necessarily need to have a different name (ie. a different reference variable). Correct, right? Thank you for your answers!

1. In the Cat class, add the public static ArrayList<Cat> variable cats.
2. Each time a new cat (new Cat object) is created, add it to the variable cats. Create 10 Cat objects.
3. The printCats method should display all cats on the screen. You need to use the variable cats.

Requirements:

Add the public static ArrayList<Cat> variable cats to the Cat class.
The variable cats must be initialized.
The main method should create 10 Cat objects (use the Cat() constructor).
The main method must add all the created cats to the variable cats.
The printCats method should display all the cat objects in the variable cats. Each on a new line.

package com.codegym.task.task06.task0614; import java.util.ArrayList; /* Static cats */ public class Cat { public static ArrayList<Cat> cats = new ArrayList<Cat>(); public Cat() { } public static void main(String[] args) { Cat cat1 = new Cat(); Cat cat2 = new Cat(); Cat cat3 = new Cat(); Cat cat4 = new Cat(); Cat cat5 = new Cat(); Cat cat6 = new Cat(); Cat cat7 = new Cat(); Cat cat8 = new Cat(); Cat cat9 = new Cat(); Cat cat10 = new Cat(); cats.add(cat1); cats.add(cat2); cats.add(cat3); cats.add(cat4); cats.add(cat5); cats.add(cat6); cats.add(cat7); cats.add(cat8); cats.add(cat9); cats.add(cat10); printCats(); } public static void printCats() { //for(Cat whatever : cats) { // System.out.print(whatever); for(int i = 0; i<cats.size(); i++){ System.out.print(cats.get(i)); } } }

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John Peterson

Level 9 , Blacksburg, United States

5 December 2019, 15:08

Last requirement is "Each on a new line." You can pass task with 2 more letters.

Guadalupe Gagnon

Level 37 , Tampa, United States

20 November 2019, 15:16

The task doesn't tell you to create your own toString method, this would fail the task.

hidden #10538281

Level 10

20 November 2019, 20:15

Yeah, I was asking about how could I do it without using a toString method. Since if I just print the objects from the arraylist it doesn´t appear in a, lets say, readable way (like this: Cat@38c6f217).

Guadalupe Gagnon

Level 37 , Tampa, United States

20 November 2019, 20:35

You would have to over ride the to string method and create a message to write:

@Override
public String toString() {
   return "cat!!!";
}

You can return any string, though without class fields there won't be too much you can do to create different outputs like cat1, cat2, cat3 etc.