Java tutorial
import java.util.Arrays; public class Main { public static void main(String[] argv) throws Exception { String testStr = "J J@H.com"; System.out.println("Original string: " + testStr); String[] result = testStr.split("[\\W && [^.@]]+"); System.out.println(Arrays.toString(result)); } } /*Original string: J J@H.com [J, J@H.com] */