CHALLENGE ACTIVITY 6.1.1: Print the sum of the first and last element in the partially filled array In the following program, print the sum of the first and last element in the partially filled array prices with companion variable numberOfPrices 4 public class FirstAndlast 5( 6 public static void main(String[] args) ( 7 8 9 30 11 12 13 14 15 16 17 18 Scanner in new Scanner(System.in); final int LENGTH 100; double prices new double[LENGTH: System.out.println("Enter prices, Q to finish 1 int numberOfPrices - while (in.hasNextDouble()) double price in.nextDouble(); if (numberOfPrices LENGTIO

Method Details: public static java.lang.String getArrayString​(int[] array, char separator) Return a string where each array entry (except the last one) is followed by the specified separator. An empty string will be return if the array has no elements. Parameters: array - separator - Returns: stringThrows:java.lang.IllegalArgumentException - When a null array parameter is provided

1. Deck.java The Deck class represents a deck of cards. It starts off with 52 cards, but as cards are dealt from the deck. the number of cards becomes smaller. The class has one private instance variable that stores the Cards that are currently in the Deck: private Card] carde; Important Note: The first Card in the array will be considered the card that Is at the top of the deck. Whon cards aro removed from the deck they will be removed from the front of the array. You must implement the flollowing methods for the Deck class: • public Dock) This constructor initializes the Deck with 52 card objacts, representing the 52 cards that are in a standard deck. The cards must be ordered as in the diagram below: Important: The FIRST card in your array should be the Ace of Spades, and the LAST card should be the King of Diamonds. Note that in the picture below, the Ace of Spades is at the TOP of the deck, which is to the left. A234567890 J.0KA234567 25456 10KA2 S45 57|8|90U.0高 • public Deck(Deck…

Write a Java method (do not write a class, only the method) with the following signature: Return type: void Parameters: 2D integer array Name: printDiagonal Implement the method code that will print out the values of the 2D array along the Diagonal from left to right. For example, if the array had the following values: 56    78    98 21    33    55 98    44    11        The method should print to the console:   56,33,11 The above 2D array example is only given for you to understand the problem Do not hard code the values in your solution or assume the array is the same as the given data. Your method should work for all 2D integer arrays.