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1. Complete classes OneCard and CardThread. Modify them as needed. You can add more variables & methods, but do not change the visibility of existing ones

1. Complete classes OneCard and CardThread. Modify them as needed. You can add more variables & methods, but do not change the visibility of existing ones

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1. Complete classes OneCard and CardThread. Modify them as needed. You can add more variables & methods, but do not change the visibility of existing ones class OneCard { private int private int score; suit; private int rank; private boolean drawn; public int getScore() public int getSuit() public int getRank() public boolean isDrawn() } // end OneCard // 0-51 // clubs, diamonds, hearts, spades // ace, 2-10, jack, queen, king // whether this card is drawn { return score; } { return suit; } { return rank; } { return drawn; } class Card Thread extends Thread { private PrintWriter out; private ArrayList<OneCard> allCards; private int targetScore; public CardThread (String n, int t) public void run() { // 1. Put all 52 cards in the ArrayList } } // end CardThread // each thread writes to a separate file // a deck of all cards // score of target card // 2. Keep drawing a card until finding the target // 3. Every time a card is drawn, print round number & that card to output file // 4. After finding the target, report #rounds to screen // 5. Each card can be drawn only once, so max #rounds = 52 Note: To use java.util. Random object Random random = new Random(); random.nextInt (10); { super(n); targetScore = t; } // an integer in [0, 10) range 2. Write another class that acts as the main class. In its main method 2.1 Ask user for #threads 2.2 Random a target card 2.3 Create CardThreads to perform the tasks in (1)
Transcribed Image Text:1. Complete classes OneCard and CardThread. Modify them as needed. You can add more variables & methods, but do not change the visibility of existing ones class OneCard { private int private int score; suit; private int rank; private boolean drawn; public int getScore() public int getSuit() public int getRank() public boolean isDrawn() } // end OneCard // 0-51 // clubs, diamonds, hearts, spades // ace, 2-10, jack, queen, king // whether this card is drawn { return score; } { return suit; } { return rank; } { return drawn; } class Card Thread extends Thread { private PrintWriter out; private ArrayList<OneCard> allCards; private int targetScore; public CardThread (String n, int t) public void run() { // 1. Put all 52 cards in the ArrayList } } // end CardThread // each thread writes to a separate file // a deck of all cards // score of target card // 2. Keep drawing a card until finding the target // 3. Every time a card is drawn, print round number & that card to output file // 4. After finding the target, report #rounds to screen // 5. Each card can be drawn only once, so max #rounds = 52 Note: To use java.util. Random object Random random = new Random(); random.nextInt (10); { super(n); targetScore = t; } // an integer in [0, 10) range 2. Write another class that acts as the main class. In its main method 2.1 Ask user for #threads 2.2 Random a target card 2.3 Create CardThreads to perform the tasks in (1)
exec-maven-plugin:3.0.0:exec (default-cli) Number of threads = 3 Target card = 4 of Diamonds Thread 1 finishes in 35 rounds Thread 2 finishes in 52 rounds Thread_0 finishes in 49 rounds --- BUILD SUCCESS Thread_0.txt Round 1 random card = Q of Spades Round 2 random card = 5 of Hearts Round 3 random card = 2 of Clubs Round 48: random card = Round 49 random card = Thread_2.txt Round 1 random card = Round 2 random card = Round 3 random card = Round 51 random card = Round 52: random card = A of Hearts 4 of Diamonds 3 of Spades K of Spades 7 of Hearts A of Clubs 4 of Diamonds In different runs, the finishing order between threads should be different. If it is always Thread_0, Thread_1, Thread_2, ..., then you may not do multithreaded program properly Threads also have to compete for System.out. If #rounds are close, the one who finishes first may get System.out later Thread_1.txt 1 random card= random card = random card = Round Round 2 Round 3 Round 34 Round 35 random card = random card = J of Hearts 4 of Hearts 7 of Diamonds 8 of Spades 4 of Diamonds
Transcribed Image Text:exec-maven-plugin:3.0.0:exec (default-cli) Number of threads = 3 Target card = 4 of Diamonds Thread 1 finishes in 35 rounds Thread 2 finishes in 52 rounds Thread_0 finishes in 49 rounds --- BUILD SUCCESS Thread_0.txt Round 1 random card = Q of Spades Round 2 random card = 5 of Hearts Round 3 random card = 2 of Clubs Round 48: random card = Round 49 random card = Thread_2.txt Round 1 random card = Round 2 random card = Round 3 random card = Round 51 random card = Round 52: random card = A of Hearts 4 of Diamonds 3 of Spades K of Spades 7 of Hearts A of Clubs 4 of Diamonds In different runs, the finishing order between threads should be different. If it is always Thread_0, Thread_1, Thread_2, ..., then you may not do multithreaded program properly Threads also have to compete for System.out. If #rounds are close, the one who finishes first may get System.out later Thread_1.txt 1 random card= random card = random card = Round Round 2 Round 3 Round 34 Round 35 random card = random card = J of Hearts 4 of Hearts 7 of Diamonds 8 of Spades 4 of Diamonds
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