This project is a Java class that accepts an array of strings in the constructor. The class will expose a find function that accepts a string. The function will return all strings from the array that contains the exact same characters as the string passed into it. The order of the characters in the strings is not relevant.

to solve this problem, I used Regex to find specific characters with high performance and functionality. you can find this solution in Finder class.

To build project you can use this command:

mvn clean install

This project contain unit test to check functionalities, exceptions and Performance. To measure performance, I considered a String array with 60k length. you can find this test case in: FinderTest.performaceTest

run test by maven: mvn test

and result is:

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 T E S T S
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Running com.khtm.sdx.sample.FinderTest
Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.229 sec

Results :

Tests run: 5, Failures: 0, Errors: 0, Skipped: 0