Implement a version of shellsort that keeps the increment sequence in an array, rather than computing it

The WalkingBoard class represents a board with a figure standing on position x,y. Each position also has a value associated with it. Initialise the board in two different ways: either make it size×size or use the given dimensions and initial values. About the second way: The rows may not be uniform: they may have differing numbers of columns in them. Don’t simply take the argument array: create its copy in the field. All values are set to BASE_TILE_SCORE, or to the given value if that’s bigger. Operations. getPosition: returns the values of x and y in an array. getTile: returns the value of the of the board position. Let this condition be checked by the helper method isValidPosition. If it is an invalid position, throw an IllegalArgumentException. getTiles: returns the values of all the board positions. Don’t let the field contents be accessed from the caller: create and return an exact copy of the structure. getXStep and getYStep: helper methods, they indicate how far (-1,…

Write a Java class that creates a 3x4 array of 12 random ints between 0 and 100. Write a method to return the sum of the elements in the last column of each row in the two-dimensional array.

Would just like to know what the implementation of the add method looks like. Thank you :)

Write a Java program that will allow the user to play a hangman game repeatedly until theychoose to stop. The game should randomly choose a secret word from a pre-set list of wordsfor the user to guess. Store the list of words available for play in an array so you can randomlychoose them by index during game play.During a turn, the user will guess one letter at a time. Each letter in the secret word shoulddisplay as an asterisk until the letter is guessed by the user. When a correct letter is guessed,the letter should be displayed in the correct position in place of the asterisk. The user hangshimself with the 8th wrong guess and loses the game.Make a character array to hold the characters and asterisks representing the word beingguessed. You can change the contents of this array as the letters are guessed and revealed. Inother words, this array can be used to display the current state of the secret word each round.Here is the list of words the game should choose from for the secret…

Implement getArrayElmsInRange Method Details: getArrayElemsInRange public static int[] getArrayElemsInRange​(int[] array, int lower, int upper) Returns an array with values in the range defined by lower (inclusive) and upper (inclusive). Feel free to use the getCountInRange method during the implementation of this method (See below). Parameters: array - integer array lower - lower limit upper - upper limit Returns: array with values in the range or empty array Throws: java.lang.IllegalArgumentException - if array is null or lower is greater than upper. Any error message is fine (e.g., "Invalid parameters(s)") getCountInRange Method: class Main {             // this function will return the number elements in the given range             public static int getCountInRange(int[] array, int lower, int upper)             {                         int count = 0; // to count the numbers                         // this loop will count the numbers in the range                         for (int i…

Can you help me with this question?