Java: Check if enum contains a given string?

Question

Here\'s my problem - I\'m looking for (if it even exists) the enum equivalent of ArrayList.contains();.

Here\'s a sample of my code problem:

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Answer 1

This combines all of the approaches from previous methods and should have equivalent performance. It can be used for any enum, inlines the "Edit" solution from @Richard H, and uses Exceptions for invalid values like @bestsss. The only tradeoff is that the class needs to be specified, but that turns this into a two-liner.

import java.util.EnumSet;

public class HelloWorld {

static enum Choices {a1, a2, b1, b2}

public static > boolean contains(Class _enumClass, String value) {
    try {
        return EnumSet.allOf(_enumClass).contains(Enum.valueOf(_enumClass, value));    
    } catch (Exception e) {
        return false; 
    }
}

public static void main(String[] args) {
    for (String value : new String[] {"a1", "a3", null}) {
        System.out.println(contains(Choices.class, value));
    }
}

}