A Pattern that finds numbers with following requirements: - inside the number can be only digits from 0 to 5 - length 3 @return a pattern that looks

A Pattern that finds only duplicates @return a pattern that looks for duplicates

A Pattern that finds all http links in nasa.json @return a pattern that looks for all http links in nasa.json

A Pattern that finds all https links in note.txt @return a pattern that looks for all https links in note.txt

A Pattern that finds everything inside [] @return a pattern that looks for everything inside []

Returns {@link Optional} that contains an {@link Account} with the max value of balance @return account with max balance wrapped with optional

A Pattern that finds phone numbers. For example: "555-555-5555" @return a pattern that looks for phone numbers

A Pattern that that finds all words "Curiosity" in text @return a pattern that looks for the word "Curiosity"

A Pattern that finds all zip codes in text. Zip code is a 5-digit number without any characters or special symbols. For example: 72300 @return a patt

Retrieves an elements by its position index. In case provided index in out of the list bounds it throws {@link IndexOutOfBoundsException} @param inde

Retrieves an elements by its position index. In case provided index in out of the list bounds it throws {@link IndexOutOfBoundsException} @param inde

Retrieves a value by the given key. It uses calculateIndex method to find the corresponding array index. Then it iterates though all elements that are

Wrong way of using Optional

Returns account balance by its email. Throws {@link EntityNotFoundException} with message "Cannot find Account by email={email}" if account is not fou

Returns a {@link Map} where key is a letter {@link Character}, and value is a number of its occurrences ignoring case, in all {@link Account#firstName

Returns a {@link Map} where key is a letter {@link Character}, and value is a number of its occurrences in {@link Account#firstName}. @return a map w

Returns the name of the randomly-chosen comparing field.

Returns the first element of the list. Operation is performed in constant time O(1) @return the first element of the list @throws java.util.NoSuchEle

Returns the first element of the list. Operation is performed in constant time O(1) @return the first element of the list @throws java.util.NoSuchEle

Returns the first element of the list. Operation is performed in constant time O(1) @return the first element of the list @throws java.util.NoSuchEle

Returns the last element of the list. Operation is performed in constant time O(1) @return the last element of the list @throws java.util.NoSuchEleme

Returns the last element of the list. Operation is performed in constant time O(1) @return the last element of the list @throws java.util.NoSuchEleme

Returns the last element of the list. Operation is performed in constant time O(1) @return the last element of the list @throws java.util.NoSuchEleme

Returns a number of letters in all first and last names. @return total number of letters of first and last names of all accounts

This method returns a very important message. If understood well, it can save you years of inefficient learning, and unlock your potential! @return "

Returns a {@link Map} that stores accounts grouped by its email domain. A map key is {@link String} which is an email domain like "gmail.com". And the