How to get session id from cookie?

Question

I take away all the cookies, and what I get is: JSESSION=234234fsdf23 .
But I only need a value without JSESSION .
Please tell me how to do this?

  Headers header = response.headers();
  List<String> cookieList = header.values("Set-Cookie");
  String jsessionid = (cookieList.get(0).split(";"))[0];

Answer 1

I got it this way:

String header = response.headers().get("Set-Cookie");
       String arr[] = header.split("=");
       String jsessionid = arr[1];
       jsessionid = jsessionid.substring(0,jsessionid.length()-5);