From cd9bae4306e70aa63ada2f23c2521c364a6d95df Mon Sep 17 00:00:00 2001
From: priyanshujain05 <priyanshiuj05@gmail.com>
Date: Tue, 4 Oct 2022 18:50:42 +0530
Subject: [PATCH 1/2] Added a simple Tic Tac Toe game implementation using Java

---
 java/Tic_Tac_Toe.java | 148 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 java/Tic_Tac_Toe.java

diff --git a/java/Tic_Tac_Toe.java b/java/Tic_Tac_Toe.java
new file mode 100644
index 0000000..f14f7d3
--- /dev/null
+++ b/java/Tic_Tac_Toe.java
@@ -0,0 +1,148 @@
+
+// A simple program to demonstrate 
+// Tic-Tac-Toe Game.
+
+import java.util.*;
+
+public class Tic_Tac_Toe {
+
+	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 <= 9)) {
+					System.out.println("Invalid input; re-enter slot number:");
+					continue;
+				}
+			} catch (InputMismatchException e) {
+				System.out.println("Invalid input; re-enter slot number:");
+				continue;
+			}
+
+			// This game has two player x and O.
+			// Here is the logic to decide the turn.
+			if (board[numInput - 1].equals(String.valueOf(numInput))) {
+				board[numInput - 1] = turn;
+
+				if (turn.equals("X")) {
+					turn = "O";
+				} else {
+					turn = "X";
+				}
+
+				printBoard();
+				winner = checkWinner();
+			} else {
+				System.out.println("Slot already taken; re-enter slot number:");
+			}
+		}
+
+		// If no one win or lose from both player x and O.
+		// then here is the logic to print "draw".
+		if (winner.equalsIgnoreCase("draw")) {
+			System.out.println("It's a draw! Thanks for playing.");
+		}
+
+		// For winner -to display Congratulations! message.
+		else {
+			System.out.println("Congratulations! " + winner + "'s have won! Thanks for playing.");
+		}
+	}
+
+}

From 910169db5e931e24ccfbd1a30ea19174d39da814 Mon Sep 17 00:00:00 2001
From: priyanshujain05 <priyanshiuj05@gmail.com>
Date: Tue, 4 Oct 2022 18:58:01 +0530
Subject: [PATCH 2/2] Added a simple Tic Tac Toe game implementation using Java

---
 java/Tic_Tac_Toe.java | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/java/Tic_Tac_Toe.java b/java/Tic_Tac_Toe.java
index f14f7d3..65f0047 100644
--- a/java/Tic_Tac_Toe.java
+++ b/java/Tic_Tac_Toe.java
@@ -68,8 +68,13 @@ else if (line.equals("OOO")) {
 
 	// To print out the board.
 	/*
-	 * |---|---|---| | 1 | 2 | 3 | |-----------| | 4 | 5 | 6 | |-----------| | 7 | 8
-	 * | 9 | |---|---|---|
+	 * |---|---|---| 
+	 * | 1 | 2 | 3 |
+	 * |-----------| 
+	 * | 4 | 5 | 6 | 
+	 * |-----------| 
+	 * | 7 | 8 | 9 | 
+	 * |---|---|---|
 	 */
 
 	static void printBoard() {