I have this library system where i got bookdata stored in a textfile. and person data stored in another text file.
- I need to check if
String isbn = sc.next(); is the same as the hashmap-bokm key (isbn) in class Bok.
The Bok bokm hashmap is made in another class that reads the file in.
Same with the Person personm which will later read in the data typed here.
What i am trying to do is to make an if
test so that if isbn is in hashmap then
bufferedWriter.write(isbn+";"+now()+";"+nr+";"+name+";");
bufferedWriter.newLine();
else errormessage and retry!