package list.exercises;

import java.util.List;

public class ListExercises $\{$

$/**$

$*$ Counts the number of characters in total across all strings in the supplied list;

$*$ in other words, the sum of the lengths of the all the strings.

$*$ @param l a non$-$null list of strings

$*$ @return the number of characters

$*/$

public static int countCharacters$($List l$)\{$

return $0$;

$\}$

$/**$

$*$ Splits a string into words and returns a list of the words.

$*$ If the string is empty, split returns a list containing an empty string.

$*$

$*$ @param s a non$-$null string of zero or more words

$*$ @return a list of words

$*/$

public static List split$($String s$)\{$

return null;

$\}$

$/**$

$*$ Returns a copy of the list of strings where each string has been

$*$ uppercased $($as by String.toUpperCase$).$

$*$

$*$ The original list is unchanged.

$*$

$*$ @param l a non$-$null list of strings

$*$ @return a list of uppercased strings

$*/$

public static List uppercased$($List l$)\{$

return null;

$\}$

$/**$

$*$ Returns true if and only if each string in the supplied list of strings

$*$ starts with an uppercase letter. If the list is empty, returns false.

$*$

$*$ @param l a non$-$null list of strings

$*$ @return true iff each string starts with an uppercase letter

$*/$

public static boolean allCapitalizedWords$($List l$)\{$

return false;

$\}$

$/**$

$*$ Returns a list of strings selected from a supplied list, which contain the character c$.$

$*$

$*$ The returned list is in the same order as the original list, but it omits all strings

$*$ that do not contain c$.$

$*$

$*$ The original list is unmodified.

$*$

$*$ @param l a non$-$null list of strings

$*$ @param c the character to filter on

$*$ @return a list of strings containing the character c$,$ selected from l

$*/$

public static List filterContaining$($List l$,$ char c$)\{$

return null;

$\}$

$/**$

$*$ Inserts a string into a sorted list of strings, maintaining the sorted property of the list.

$*$

$*$ @param s the string to insert

$*$ @param l a non$-$null, sorted list of strings

$*/$

public static void insertInOrder$($String s$,$ List l$)\{$

$\}$

$\}$