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

The Java 8 version:

list.sort(Comparator.comparing(Object::toString));

Or streaming:

List sortedList = unsortedList
    .stream()
    .sorted(Comparator.comparing(Object::toString)))
    .collect(Collectors.toList());