How do I determine whether an array contains a particular value in Java?

August 28, 2022 by Tarik

Arrays.asList(yourArray).contains(yourValue)

Warning: this doesn’t work for arrays of primitives (see the comments).

Since java-8 you can now use Streams.

String[] values = {"AB","BC","CD","AE"};
boolean contains = Arrays.stream(values).anyMatch("s"::equals);

To check whether an array of int, double or long contains a value use IntStream, DoubleStream or LongStream respectively.

int[] a = {1,2,3,4};
boolean contains = IntStream.of(a).anyMatch(x -> x == 4);