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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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Please help me in fixing the errors in this java program. Then proceed in putting graphics like in the photos below Program is below // A simple program to demonstrate // Tic-Tac-Toe Game. import java.util.*; public class Main { static String[] board; static String turn; // CheckWinner method will // decide the combination // of three box given below. static String checkWinner() { for (int a = 0; a < 8; a++) { String line = null; switch (a) { case 0: line = board[0] + board[1] + board[2]; break; case 1: line = board[3] + board[4] + board[5]; break; case 2: line = board[6] + board[7] + board[8]; break; case 3: line = board[0] + board[3] + board[6]; break; case 4: line = board[1] + board[4] + board[7]; break; case 5: line = board[2] + board[5] + board[8]; break; case 6: line = board[0] + board[4] + board[8]; break; case 7: line = board[2] + board[4] + board[6]; break; } //For X winner if (line.equals("XXX")) { return "X"; } // For O winner else if (line.equals("OOO")) { return "O"; } } for (int a = 0; a < 9; a++) { if (Arrays.asList(board).contains( String.valueOf(a + 1))) { break; } else if (a == 8) { return "draw"; } } // To enter the X Or O at the exact place on board. System.out.println( turn + "'s turn; enter a slot number to place " + turn + " in:"); return null; } // To print out the board. /* |---|---|---| | 1 | 2 | 3 | |-----------| | 4 | 5 | 6 | |-----------| | 7 | 8 | 9 | |---|---|---|*/ static void printBoard() { System.out.println("|----|----|----|"); System.out.println("| " + board[0] + " | " + board[1] + " | " + board[2] + " |"); System.out.println("|--------------|"); System.out.println("| " + board[3] + " | " + board[4] + " | " + board[5] + " |"); System.out.println("|--------------|"); System.out.println("| " + board[6] + " | " + board[7] + " | " + board[8] + " |"); System.out.println("|----|----|----|"); } public static void main(String[] args) { Scanner in = new Scanner(System.in); board = new String[9]; turn = "X"; String winner = null; for (int a = 0; a < 9; a++) { board[a] = String.valueOf(a + 1); } System.out.println("Welcome to 3x3 Tic Tac Toe."); printBoard(); System.out.println( "X will play first. Enter a slot number to place X in:"); while (winner == null) { int numInput; // Exception handling. // numInput will take input from user like from 1 to 9. // If it is not in range from 1 to 9. // then it will show you an error "Invalid input." try { numInput = in.nextInt(); if (!(numInput > 0 && numInput