sort by type

package com.example.foo;

import java.time.Month;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Random;
import java.util.stream.Collectors;

import com.example.foo.SomeClass.Foo.Type;

public class SomeClass {
  public static void main(final String[] args) {
    final FooContainer foos = new FooContainer();
    final Random rng = new Random();
    final Type[] types = Foo.Type.values();
    // This just adds random elements:
    for (int i = 0; i < 100; i++)
      foos.add(new Foo(Month.of(rng.nextInt(12) + 1).name(), types[rng.nextInt(types.length)]));

    final List<Foo> elements = foos.sortedByType();
    for (final Foo foo : elements)
      System.out.println(foo.getName());
  }

  public static class FooContainer {
    private final List<Foo> list = new ArrayList<>();

    public void add(final Foo foo) {
      this.list.add(foo);
    }

    public List<Foo> sortedByType() {
      return this.list.stream().sorted(Comparator.comparing(Foo::getType))
          .collect(Collectors.toList());
    }
  }

  public static class Foo {
    public static enum Type {
      A, B, C;
    }

    private Type type;
    private String name;

    public Foo(final String name, final Type type) {
      this.name = name;
      this.type = type;
    }

    public String getName() {
      return this.name;
    }

    public void setName(final String name) {
      this.name = name;
    }

    public Type getType() {
      return this.type;
    }

    public void setType(final Type type) {
      this.type = type;
    }
  }
}