List<String> list = new ArrayList<String>() {{add("hello"); add("goodbye");}}

List<String> list = new ArrayList<String>();
list.add("hello");
list.add("goodbye");

public boolean equals(Object ob) {
  if (!(ob instanceof MyClass)) return false;
  ...
}

public boolean equals(Object ob) {
  if (ob.getClass() != getClass()) return false;
  ...
}

List<String> list = new ArrayList<String>(
    Arrays.asList("hello", "goodbye")
);