Which statement correctly distinguishes reference identity from value equality?

Which statement correctly distinguishes reference identity from value equality?

1. `==` compares object identity; `equals()` uses the value relation defined by the receiver’s type.
2. `==` always delegates to `equals()` for reference types.
3. Two objects with the same field values are always identical.
4. Overriding `equals()` makes `hashCode()` update automatically.