Find if a String is present in an array

Question

OK let s say I have an array filled with   tube    are    fun   and then I have a JTextField and if I type either one of those commands to do something and if NOT to get like a message saying  Command not found    I tried looking in Java docs but all I am getting is things that I don t want like questions and stuff    so  how is this done  I know there is a  in array  function but I m not too good with combining the two together   Thanks   Here is what I have so far   String   dan     Red    Orange    Yellow    Green    Blue    Violet    Orange    Blue    boolean contains   dan contains say getText       but I am getting cannot find symbol in dan contains

User · Accepted Answer

This is what you re looking for   List lt String gt  dan   Arrays asList  Red    Orange    Yellow    Green    Blue    Violet    Orange    Blue     boolean contains   dan contains say getText       If you have a list of not repeated values  prefer using a Set lt String gt  which has the same contains method

User · Answer

String   a    tube    are    fun    Arrays asList a  contains  any

User · Answer

This can be done in java 8 using Stream   import java util stream Stream   String   stringList     Red    Orange    Yellow    Green    Blue    Violet    Orange    Blue     boolean contains   Stream of stringList  anyMatch x - gt  x equals say getText

User · Answer

If you can organize the values in the array in sorted order  then you can use Arrays binarySearch     Otherwise you ll have to write a loop and to a linear search   If you plan to have a large  more than a few dozen  strings in the array  consider using a Set instead

User · Answer

Use Arrays asList   to wrap the array in a List lt String gt   which does have a contains   method   Arrays asList dan  contains say getText

[java] Find if a String is present in an array

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