To truncate n SubString

Question

good evening. i'm looking for a particular example of coding specifically targeted to this purpose:-
1) Truncate from Side A(where it's a record document listing a few string values) to a single value string(in Side B)
2) And to convert the single value string(in Side B) back to a record document with multiple string values(in Side A). [would substring be used here?]
thanks!

Answer 1

I'd make 2 methods for Record: toString() and fromString()
ie,
public String toString()
    return string1 + ":" + string2 + ":" + string3;
public static Record fromString(String data) throws InvalidRecordException
    try
        StringTokenizer stk = new StringTokenizer(data,":");
        return new Record(stk.nextToken(), stk.nextToken(), stk.nextToken());
    catch(Exception e)
        throw new InvalidRecordException();
}Something like that. Depends on what the variables are. Also if you want to use toString() for displaying your object, you might want to make it slightly more readable, maybe using ", " instead of ":"
Hope this helps,
Radish21