How to print an Array List on multiple lines?

Question

I'm doing the MOOC java course, and I'm stuck on exercise 76. Whenever I submit the answer it tells me to print each meal to a seperate line. How would I go about doing this?

Main class

public class Main {
    public static void main(String[] args) {
        Menu exactum = new Menu();


        exactum.addMeal("Fish fingers with sour cream sauce");
        exactum.addMeal("Vegetable casserole with salad cheese");
        exactum.addMeal("Chicken and nacho salad");

        exactum.printMeals();


        exactum.clearMenu();
        exactum.printMeals();
    }
}

Menu class

import java.util.ArrayList;

public class Menu {

    private ArrayList<String> meals;

    public Menu() {
        this.meals = new ArrayList<String>();
    }

     public void addMeal(String meal) {
         if (!meals.contains(meal)) {
         meals.add(meal);      
     }
    }
      public void printMeals() {
          if (!meals.isEmpty())
          System.out.println(this.meals);
      }

      public void clearMenu(){
          meals.removeAll(meals);
      }

}

Output

[Fish fingers with sour cream sauce, Vegetable casserole with salad cheese, Chicken and nacho salad]

iterate over elements of arraylist public void printMeals() { for(String meal : this.meals) System.out.println(meal); } — Ashish
– Ashish, Commented Feb 24, 2016 at 3:44

MartinS · Accepted Answer · 2016-02-24 03:47:50Z

2

Just iterate over the list and print each item seperately:

  public void printMeals() {
    for(String meal : meals) {
        System.out.println(meal);
    }
  }

answered Feb 24, 2016 at 3:47

MartinS

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1 Comment

Jebbyo Over a year ago

Thanks. I tried that earlier, but I had it under the addMeal method instead of the print and was wondering why it wouldn't work lol.

Noor Nawaz · Accepted Answer · 2016-02-24 03:48:52Z

0

In Java 8

public void printMeals() {
    this.meals.stream().forEach(System.out::println);
}

answered Feb 24, 2016 at 3:48

Noor Nawaz

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Comments

Vikrant Kashyap · Accepted Answer · 2016-02-24 04:26:48Z

0

 import java.util.ArrayList;

public class Menu {

   private ArrayList<String> meals;

public Menu() {
    this.meals = new ArrayList<String>();
}

 public void addMeal(String meal) {
     if (!meals.contains(meal)) {
     meals.add(meal);      
 }
}
  public void printMeals() {
   if (meals.isEmpty()){
     System.out.println("No Meal Object Found !");
      return;
    }
for(String meal : meals) {
    System.out.println(meal);
    }
   }
  public void clearMenu(){
      meals.removeAll(meals);
  }
}

answered Feb 24, 2016 at 4:26

Vikrant Kashyap

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