The String class provides a rich set of methods for working with text. All of them return a new string — the original remains unchanged. Here are the most important groups of operations.

Length, Characters, Substrings
Full content is available with a subscription.
Get full access to all courses on the platform for one year with a single payment.
Unlike other platforms that charge per course, here you get everything for one price, and after one year of use there will be no automatic charge for the following year.