如何格式化方法中的数组以在没有括号的单独行上返回

Question

I'm working on a toString method that takes in a name of a Array and returns the name and the "tasks" stored within the array. However, I'm unsure of how to format the array within the method in order to get it to print each index of the array on separate lines.

What I have:

import java.util.ArrayList;
import java.util.Collections;

public class ToDoList implements ToDoListInterface {

    private String name;
    private ArrayList<Task> tasks;

    public ToDoList (String name)
    {
        this.name = name;
        tasks = new ArrayList<Task>();
    }
    public String toString(String name) 
    {
        return "-------------" + "\n" + name + "\n" + "-------------" + "\n" + tasks;
    }

What it results:

-------------
To Do List
-------------
[[X]Finish studying, 0, [ ]Last minute cramming, 20, [ ]Finish studying, 0, [ ]Finish studying, 0]

What it's supposed to look like:

-------------
My ToDo List
-------------
[X] Finish studying, 0

[ ] Last minute cramming, 20

etc......

Answer 1

As @Dave Newton already mentioned, you will have to iterate through your tasks .

Possible Solution :

public String toString(String name) {
    String ret = "-------------" + "\n" + name + "\n" + "-------------" + "\n";

    for(Task t: tasks) {
        ret += "[" + (t.isFinished() == true ? "X" + : " ") + "] " + t.getTitle() + ", " + task.getDuration()  + "\n";
    }

    return ret;
}