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

Question

I have a String[] with values like so:

public static final String[] VALUES = new String[] {"AB","BC","CD","AE"}; 

Given String s, is there a good way of testing whether VALUES contains s?

Answer 1

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.

Example

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