I cant get it to print the array :(

Question about the task

Under discussion

package com.codegym.task.task06.task0614;

import java.util.ArrayList;
import java.util.Arrays;

/*
Static cats

*/

public class Cat {
    //write your code here
    public static ArrayList<Cat> cats =  new ArrayList<>();

    public Cat() {

    }

    public static void main(String[] args) {
        //write your code here
        for(int i=0; i<10; i++){
           Cat cat = new Cat();
           cats.add();
        }
        printCats();
    }

    public static void printCats() {
        //write your code here
        System.out.println(Arrays.toString(cats));
    }
}

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 { //write your code here public static ArrayList<Cat> cats = new ArrayList<Cat>(); public Cat() { } public static void main(String[] args) { //write your code here for(int i=0; i<10; i++){ Cat cat = new Cat(); cats.add(cat); } printCats(); } public static void printCats() { //write your code here System.out.println(cats); } }

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scriptKing madDog

27 September 2021, 07:25

many thanks for your help i managed to completed the task, it still prints this

com.codegym.task.task06.task0614.Cat@11028347
com.codegym.task.task06.task0614.Cat@14899482
com.codegym.task.task06.task0614.Cat@21588809
com.codegym.task.task06.task0614.Cat@2aae9190
com.codegym.task.task06.task0614.Cat@2f333739
com.codegym.task.task06.task0614.Cat@77468bd9
com.codegym.task.task06.task0614.Cat@12bb4df8
com.codegym.task.task06.task0614.Cat@4cc77c2e
com.codegym.task.task06.task0614.Cat@7a7b0070
com.codegym.task.task06.task0614.Cat@39a054a5

not sure if thats correct

Guadalupe Gagnon

Level 37 , Tampa, United States

25 September 2021, 16:00

The code is printing the Array just fine. The problem is that it is printing the array incorrectly. I have highlighted the pertinent part of the directions here: "The printCats method should display all the cat objects in the variable cats. Each on a new line."

Aron

Level 6

Expert

25 September 2021, 09:31

useful

Hi, Have a look at if the below helps. cats variable is a reference to the whole array stored in memory, so currently your printing the hexcode of the address location in memory. What you need to do is use a loop in printCat() method, like the one on line 19, on each iteration of the loop you want to get the cat from the array and then print it. You can do using the .get Method. example Cat TheCat = cats.get(i) System.out.println(TheCat)