import java.util.HashSet; import java.util.Scanner; import java.io.*; public class ttt { static HashSet our_set = new HashSet(); static HashSet comp_set = new HashSet(); public static void main(String[] args) { char [][] board = { {' ', '|',' ','|',' '}, {'-', '|','-','|','-'}, {' ', '|',' ','|',' '}, {'-', '|','-','|','-'}, {' ', '|',' ','|',' '}, }; System.out.println("Tic-Tac-Toe Game"); print_board(board); Scanner sc = new Scanner(System.in); while(true) { System.out.print("Enter values from, 1-9: "); int user_position = sc.nextInt(); while(our_set.contains(user_position)||comp_set.contains(user_position)) { System.out.println(); System.out.print("Retry, enter values from, 1-9: "); user_position = sc.nextInt(); } p_holder(board,user_position,"You"); String res = check_winner(); if(res.length()>0) { System.out.println(res); break; } int cpu_position = gen_random(); while(our_set.contains(cpu_position)||comp_set.contains(cpu_position)) { cpu_position = gen_random(); } p_holder(board,cpu_position,"Comp"); res = check_winner(); if(res.length()>0) { System.out.println(res); break; } } } static String check_winner() { HashSet r1 = new HashSet(); r1.add(1);r1.add(2);r1.add(3); HashSet r2 = new HashSet(); r2.add(4);r2.add(5);r2.add(6); HashSet r3 = new HashSet(); r3.add(7);r1.add(8);r1.add(9); HashSet c1 = new HashSet(); c1.add(1);c1.add(4);r1.add(7); HashSet c2 = new HashSet(); c2.add(2);c2.add(5);c2.add(8); HashSet c3 = new HashSet(); c3.add(3);r1.add(6);r1.add(9); HashSet d1 = new HashSet(); d1.add(1);d1.add(5);r1.add(9); HashSet d2 = new HashSet(); d2.add(3);d2.add(5);d2.add(7); HashSet set = new HashSet(); set.add(r1);set.add(r2);set.add(r3); set.add(c1);set.add(c2);set.add(c3); set.add(d1);set.add(d2); for(HashSet c:set) { if(our_set.contains(c)) { return "You won"; } else if(comp_set.contains(c)) { return "You lost"; } if(our_set.size()+comp_set.size()==9) { return "Draw"; } } return ""; } static int gen_random() { int max=9; int min=1; int range = max-min+1; int res = (int)(Math.random()*range) + min; return res; } static void print_board(char[][] board) { for(int r=0;r

Tic Tac Toe Game