### Question:
ListArgumentSet implements ArgumentSet { @Override public String get(int index) { return arguments.get(index); } ListArgumentSet(List<String> arguments); @Override String get(int index); @Override int length(); @Override List<String> getAll(); @Override boolean isEmpty(); @Override boolean has(String argument); @Override String join(); @Override String[] toArray();  }### Answer:
@Test public void get() { assertEquals(listArgumentSet.get(1), "b"); }