The following is the written code:

Public? Class? Testing? {

Public? Static electricity Invalid? main(String[]？ args)？ {

//? The initial string cannot contain characters other than numbers.

String? str="3，4，5，"；

//? Separate strings with commas to get an array of strings.

String[]？ s？ =? str.split("，")；

//? Defines an int array with the same length as the string array.

int[]？ Me? =? New? int[s . length]；

For what? (int？ n？ =? 0; ? n？ & lt？ I. Length; ? n++)？ {

//? Converts the value of the corresponding item in the string array to int type.

Me [n]? =? integer . parse int(s[n])；

system . out . println(I[n])；

}

}

}