How to check whether two elements are available in an array?

For example,
String str1="2"
String str2="3"
String [] str3={"2","4","8","9","3"};
Is there any feature available by default to check whether both str1 and str2 are contained in str3?
Or we can only compare by doing equals() and a loop?

cross posted in the java-forums.
Please do not cross-post questions in multiple forums. This will frustrate anyone who tries to help you only to find out later that the same answer was given hours ago in a cross-posted thread. For this reason, many volunteers here and at the other sites refuse to help repeat offenders.

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