How do you place every arraylist item on a new line?

Question about the task

Static cats

Java Syntax, Level 6, Lesson 11

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I am on this task for hours. I really do not know how print the Arraylist items on a new line.

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) { 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(Cat.cats); } }

Comments (8)

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Rhythem Parashar

Level 11 , Mumbai, India

24 May 2019, 16:55

Your can add this loop in printCats method

for(int i=0;i<cats.size();i++){
    System.out.println(cats.get(i));
}

C. Chiang

Level 18 , Bryan, United States

16 February 2019, 18:24

try to have your "cats" display by getting each item out of Arraylist.

Roman

Level 41

13 February 2019, 13:32

You should display each Arraylist item separately. How to get each item of Arraylist separately? )

Sabine Meijran-Prins

Level 7 , Enschede, Netherlands

13 February 2019, 14:07

No idea, but I will search for it :) thank you..

Alexey

Level 7 , Chernihiv, Ukraine

16 March 2019, 16:22

if it is still relevant Sorry for my english)) at first you must move

for(int i =0; i<10; i++){
Cat cat = new Cat();
        cats.add(cat);

to printCats methods. In Arraylist we must put Cat Objects. use Cat() constractor.

cats.add(new Cat());  //NOT  cats.add(cat);

At end print all Cats in every next line.

System.out.println(cats.get(i)); // get is a method of ArrayList

Alexey

Level 7 , Chernihiv, Ukraine

16 March 2019, 16:23

Hope I help you

Johan

Level 22 , La Paz, Bolivia, Plurinational State of

21 March 2019, 11:14

cats.size() us return a size of the arrayList

Corto

Level 15 , Dublin, Ireland

26 August 2019, 16:41

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 printCats() {

        for(int i = 0; i<cats.size(); i++) {
            System.out.println(cats.get(i));
        }

    }

    public static void main(String[] args) {
        for(int i =0; i<10; i++) {

            cats.add(new Cat());
        }
        printCats();
    }
}