Let say we have a server that manage a library in which you can add a book, find a book and get all the books. The server code will probably look like this 
:
| Code Block | ||||
|---|---|---|---|---|
| ||||
class BookService {
private List allBooks = new ArrayList()
Book findBook(String isbn) {
for (book in allBooks) {
if (book.isbn == isbn) return book
}
return null
}
void addBook(Book book) {
allBooks.add(book)
}
Book[] getBooks() {
return (Book[])allBooks.toArray(new Book[allBooks.size()])
}
}
|
...