1) Describe how the above program shuffles the cards?  2) Describe how deck[i] / 13 and deck[i] % 13 work to display the suit and rank of cards?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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please answer the question for below questions (see the code):

1) Describe how the above program shuffles the cards? 
2) Describe how deck[i] / 13 and deck[i] % 13 work to display the suit and rank of cards? 

11 public class Task_1and2 {
120 public static void main(String[] args) {
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int[] deck = new int [52];
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String[] suits = { "Spades", "Hearts", "Diamonds", "Clubs"};
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String[] ranks = {"Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King"};
// Initialize cards
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for (int i = 0; i < deck.length; i++)
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deck[i] = i;
for (int i = 0; i < deck.length; i++) {
// Generate an index randomly
int index = (int) (Math.random()* deck.length);
int temp = deck[i];
deck[i] = deck[index];
deck[index] temp;
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}
// Display the first four cards
for (int i = 0; i < 4; i++) {
String suit = suits [deck[i] / 13];
String rank = ranks [deck[i] % 13];
System.out.println("Card number " + deck[i]+" : "+ rank +" of "+suit);
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}
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33
34 /*
35 * 1) Describe how the above program shuffles the cards?
36
*
37 *2) Describe how deck[i] / 13 and deck[i] % 13 work to display the suit and rank of cards?
38 *
39 */
}
}
@Javadoc Declaration Console X Coverage
<terminated > Task_1and2 [Java Application] C:\Users\Jenif\.p2\pool\plugins\org.eclipse.justj.openjdk.hotspot.jre.full.win32.x86_64_17.0.1.v20211116-1657\jre\bin\javaw.exe (Oct 9, 2022, 11:48:48 AM
Card number 36 Jack of Diamonds
Card number 38: King of Diamonds
Card number 49: Jack of Clubs
Card number 25: King of Hearts
Transcribed Image Text:11 public class Task_1and2 { 120 public static void main(String[] args) { 13 int[] deck = new int [52]; 14 String[] suits = { "Spades", "Hearts", "Diamonds", "Clubs"}; 15 String[] ranks = {"Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King"}; // Initialize cards 16 17 for (int i = 0; i < deck.length; i++) 18 deck[i] = i; for (int i = 0; i < deck.length; i++) { // Generate an index randomly int index = (int) (Math.random()* deck.length); int temp = deck[i]; deck[i] = deck[index]; deck[index] temp; 19 20 21 22 23 24 25 26 27 28 29 30 31 } // Display the first four cards for (int i = 0; i < 4; i++) { String suit = suits [deck[i] / 13]; String rank = ranks [deck[i] % 13]; System.out.println("Card number " + deck[i]+" : "+ rank +" of "+suit); 4 } 32 33 34 /* 35 * 1) Describe how the above program shuffles the cards? 36 * 37 *2) Describe how deck[i] / 13 and deck[i] % 13 work to display the suit and rank of cards? 38 * 39 */ } } @Javadoc Declaration Console X Coverage <terminated > Task_1and2 [Java Application] C:\Users\Jenif\.p2\pool\plugins\org.eclipse.justj.openjdk.hotspot.jre.full.win32.x86_64_17.0.1.v20211116-1657\jre\bin\javaw.exe (Oct 9, 2022, 11:48:48 AM Card number 36 Jack of Diamonds Card number 38: King of Diamonds Card number 49: Jack of Clubs Card number 25: King of Hearts
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