Best way to convert Integer (maybe null) to int in Java?

Question

An Integermaybe null. I convert Integerto intusing:

Integer integer = null;
int i;

try {
    i = integer.intValue();
}
catch (NullPointerException e) {
    i = -1;
} 

Is there a better way?

Answer 1

Avoiding exclusion is always better.

int i = integer != null ? integer.intValue() : -1;

Answer 2

If you already have guavaon your class path, I like the answer provided by michaelgulak .

Integer integer = null;
int i = MoreObjects.firstNonNull(integer, -1);

Answer 3

Apache Commons Lang 3

ObjectUtils.firstNonNull(T...)

Java 8 Stream

Stream.of(T...).filter(Objects::nonNull).findFirst().orElse(null)

: fooobar.com/questions/50441/...

Answer 4

Java8 :

Optional.ofNullable(integer).orElse(-1)