Multi-Dimensional Arrays Create a multi-dimensional array of size 20 by 20. Create the following methods; • Create Board: This method will create the multi-dimensional array and initialize the values to zeros, such as this; 00000000000000000000 00000000000000000000 00000000000000000000 etc • Place Ship: This method will accept as parameters the starting coordinates of the ship, the type, and the direction. (vertical or horizontal) Then it will place the ship on the board by updating the array values to be dash characters, such as this "-" The ships: • One Battleship of length 8 • One destroyer of length 2 • Two cruisers of length 4 each • Print Board: This method will output the contents of the board. Where there are ships, the dash character will be printed, where there are no ships, the zero character will be printed. • Fire: This method will accept two coordinates from the user. If there is a ship at that location, it will update the value to X for a hit. If there is no ship, it will update the character to "?" for miss. • A few exception cases to watch for: • If a ship starting coordinate is placed too close to the edge of the array, it will not fil (it would run off the end of the board) • Ships should not collide / overlap

Write Xojo Code to create the array Planets and Assign values. Planets: Venus Earth Mars Jupiter Saturn Uranus Neptune

JavaDriver Program Write a driver program that contains a main method and two other methods. Create an Array of Objects  In the main method, create an array of Food that holds at least two foods and at least two vegetables. You can decide what data to use. Method: Print  Write a method that prints the text representation of the foods in the array in reverse order (meaning from the end of the array to the beginning). Invoke this method from main. Method: Highest Sugar Food  Write a method that takes an array of Food objects and finds the Food that has the most sugar. Note that the method is finding the Food, not the grams of sugar. Hint: in looping to find the food, keep track of both the current highest index and value. Invoke this method from main.

Computer science

1Code a JavaScript callback function for the Array.map method to ('Yu Yamaguchi') evaluate an array of integersidentify the integers that are Prime numbersreturn the Prime numbers in the new array 2 Code a JavaScript callback function for the Array.reduce method to evaluate an array of integersdetermine the smalles integerreturn the smalles integer Note: if there are identical integers, the function is to return the last one.

Briefly explain integer literal

Question Write the code needed to create, instantiate and populate an array.  You may select the datatype.

Increasing the value of the length property adds more items to an array, but the items have null values until they are defined.  True or False

2DArray method:It will allocate a block of memory which represents a two-dimension arraybased on the input values supplied by the user. Ask the user to enter the number of rows andcolumn for 2D array that the user want to manipulate. The number of rows and columns that theuser enters may or may not define a square matrix (when the number of rows equals the numberof columns). The array will have exactly rows time columns (m * n) elements. It will notcontain any extra or empty cells. Initialize the “matrix” by rows with random number between 1to 100. Pass two arguments by out reference so that you can assign the number of row andcolumns of data to the first and second arguments. This is return 2D array method afterallocating new memory for 2D array and initialize it with random value. Generate randomnumber code in C# as following: Random randnum = new Random( );int number = randnum.Next (1, 101);SwapRow method: it will rotate the data in the matrix in an up/down method such that the…

Main difference between an array and an ArrayList is that an ArrayList can store more data types an ArrayList can store more elements an ArrayList executes faster for retrieval and insertion an ArrayList takes care of the memory management automatically an ArrayList uses positions and an array uses indices