import?java.util.Arrays;

public?class?HelloWorld?{
????public?static?void?main(String[]?args)?{
????????String?s1?=?"hello?world!";
????????String[]?arr?=?s1.split("?");
????????System.out.println("arrString:"?+?Arrays.toString(arr));
????????System.out.println(arr[0]?+?"-end");
????????System.out.println(arr[1]?+?"-end");
????}
}