Alphabetically Sort a Java Collection based upon the 'toString' value of its member items

Question

Assume I have a user defined Java class called Foo such as:

public class Foo 
{

    private String aField;

    @Override
    public String toString()
    {         


        

Answer 1

Use the API sort(List list, Comparator c)which specifies a comparator, and implement is as you wish.

Alternatively, if you do not specifically need a List, use a SortedSet, same goes with the comparator.