check if optional is empty java
String o = getOptional().orElse(null);
if (o == null) {
return;
}@Test
public void givenNull_whenCreatesNullable_thenCorrect() {
String name = null;
Optional<String> opt = Optional.ofNullable(name);
assertFalse(opt.isPresent());
}
Also in Java:
- hashmaps java
- java create folder
- java set value of arraylist
- java.lang.UnsupportedOperationException
- enhanced for loop java
- java map declaration
- how to import an arraylist in java
- how to detect device javascirpt
- how to remove a certain string in a arraylist java
- changing double space to single in java script
- mock ParameterizedTypeReference
- to char array java
- creating thread in java example
- loop through java object
- java repository sql find not in list
- how add strings together
- sending a excel in an attachment in email java
- how to replace all of one character with nothing in java
- java file class
- how to remove all special characters from a string in java
- javafx textarea size
- e
- arraylist in java
- java how to call getReader twice