get object from optional java 8 code example

Example 1: check if optional is empty java

@Test
public void givenNull_whenCreatesNullable_thenCorrect() {
    String name = null;
    Optional<String> opt = Optional.ofNullable(name);
    assertFalse(opt.isPresent());
}

Example 2: instantiate optinal java 8

Person p = new Person();
Optional<Person> op = Optional.of(p);