Need help with figuring out how to format this coding example.

Ex) Create a PhraseAnalyzer program using isValidPhrase(), getWords(), getSmallestWords(), getLargestWords(), getAverageWordLength(), and getLetterTally() methods. The program should prompt the user to insert a phrase and the program should produce a list including the smallest word used, largest word used, average word length, least frequently used letters, and most frequently used letter. The phrase must also be valid, meaning characters that are not letters or not valid but letters that do not form a word can still count as a word. Ex: asdhj is considered valid.

Please provide javadoc so I can understand the methods used.