[英]Tic Tac Toe in Java printing error
我幾乎完成了這項家庭作業,但是輸出出現一些打印錯誤。 游戲功能正常,但是方法printOBoard
和printXBoard
存在問題, printXBoard
在移動時會弄亂游戲板。 游戲持續進行的時間越長,問題就越嚴重。 謝謝你的幫助。
import java.util.Scanner;
public class TicTacToe {
private enum Tiles {
X, O, EMPTY;
}
public static void main(String[] args) {
int i;
int j;
//initialize 2d array of enum types called "board"
Tiles[][] board = new Tiles[3][3];
for (i=0; i<board.length; i++)
for (j=0; j<board.length; j++)
board[i][j] = Tiles.EMPTY;
//print out an empty board as a 2d array, with each tile set as "EMPTY"
printBoard(board);
int row, col;
int countEmpty=0;
//initial countEmpty count, if it's less than 1, the board is full and the game is over.
for (i=0; i<board.length; i++)
for (j=0; j<board.length; j++)
if (board[i][j] == Tiles.EMPTY)
countEmpty++;
while (countEmpty > 0) {
//Player O enters the row coordinate
System.out.println("Player O's turn.");
System.out.println("Player O: Enter row (0, 1, or 2):");
Scanner stdin1 = new Scanner(System.in);
row = stdin1.nextInt();
//Player O enters the column coordinate
System.out.println("Player O: Enter column (0, 1, or 2):");
Scanner stdin2 = new Scanner(System.in);
col = stdin2.nextInt();
//If the tile is empty, it was a valid move, and an 'O' is placed on the spot.
if (board[row][col] == Tiles.EMPTY) {
board[row][col] = Tiles.O;
//MOVE FOR O ********************
printOBoard(board, row, col);
checkWin(board);
if (checkWin(board) == 2)
;
else
break;
}
//If the tile is not empty, it was not a valid move, and Player O is prompted to try again.
else {
System.out.println("Space already occupied. Please choose another.");
System.out.println("Player O's turn.");
//Player 0 enters the row coordinate
System.out.println("Player O: Enter row (0, 1, or 2):");
stdin1 = new Scanner(System.in);
row = stdin1.nextInt();
//Player O enters the column coordinate
System.out.println("Player O: Enter column (0, 1, or 2):");
stdin2 = new Scanner(System.in);
col = stdin2.nextInt();
//ERROR MOVE FOR O********************
board[row][col] = Tiles.O;
printOBoard(board, row, col);
checkWin(board);
if (checkWin(board) == 2)
;
else
break;
}
//Player X enters the row coordinate
System.out.println("Player X's turn.");
System.out.println("Player X: Enter row (0, 1, or 2):");
Scanner stdin3 = new Scanner(System.in);
row = stdin3.nextInt();
//Player X enters the column coordinate
System.out.println("Player X: Enter column (0, 1, or 2):");
Scanner stdin4 = new Scanner(System.in);
col = stdin4.nextInt();
if (board[row][col] == Tiles.EMPTY) {
board[row][col] = Tiles.X;
printXBoard(board, row, col);
//MOVE FOR X *************************************************
checkWin(board);
if (checkWin(board) == 2)
;
else
break;
}
else {
System.out.println("Space already occupied. Please choose another.");
System.out.println("Player O's turn.");
System.out.println("Player O: Enter row (0, 1, or 2):");
stdin3 = new Scanner(System.in);
row = stdin3.nextInt();
//Player O enters the column coordinate
System.out.println("Player O: Enter column (0, 1, or 2):");
stdin4 = new Scanner(System.in);
col = stdin4.nextInt();
board[row][col] = Tiles.O;
//ERROR MOVE FOR X ****************************************
printXBoard(board, row, col);
checkWin(board);
if (checkWin(board) == 2)
;
else
break;
}
//After both players move, we check to see if the board is full.
countEmpty = 0;
for (i=0; i<board.length; i++)
for (j=0; j<board.length; j++)
if (board[i][j] == Tiles.EMPTY)
countEmpty++;
}
}
//method printBoard prints out a grid of EMPTY's and returns nothing
private static void printBoard(Tiles board[][]) {
int i, j;
System.out.println(" -----------------------------");
System.out.println("| | | |");
for (i=0; i<board.length; i++){
for (j=0; j<board.length; j++){
System.out.printf("| " + board[i][j] + " ");
}
System.out.println("|");
System.out.println("| | | |");
System.out.println(" -----------------------------");
if (i<2)
System.out.println("| | | |");
}
return;
}
//method printXBoard prints out the grid modified with the addition of an X after Player X's turn
private static void printXBoard(Tiles board[][], int curRow, int curCol) {
int i, j;
System.out.println(" -----------------------------");
System.out.println("| | | |");
for (i=0; i<board.length; i++){
for (j=0; j<board.length; j++){
if (i == curRow && j == curCol)
board[i][j] = Tiles.X;
else
;
System.out.printf("| " + board[i][j] + " ");
}
System.out.println("|");
System.out.println("| | | |");
System.out.println(" -----------------------------");
if (i<2)
System.out.println("| | | |");
}
return;
}
//method printOBoard prints out the grid modified with the addition of an X after Player X's turn
private static void printOBoard(Tiles board[][], int curRow, int curCol) {
int i, j;
System.out.println(" -----------------------------");
System.out.println("| | | |");
for (i=0; i<board.length; i++){
for (j=0; j<board.length; j++){
if (i == curRow && j == curCol)
board[i][j] = Tiles.O;
else
;
System.out.printf("| " + board[i][j] + " ");
}
System.out.println("|");
System.out.println("| | | |");
System.out.println(" -----------------------------");
if (i<2)
System.out.println("| | | |");
}
return;
}
//method checkWin checks all possible winning combinations for both players.
private static int checkWin(Tiles board[][]) {
if (board[0][0] == Tiles.X && board[0][1] == Tiles.X && board[0][2] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
else if (board[0][0] == Tiles.X && board[1][1] == Tiles.X && board[2][2] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
else if (board[0][0] == Tiles.X && board[1][0] == Tiles.X && board[2][0] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
else if (board[1][0] == Tiles.X && board[1][1] == Tiles.X && board[1][2] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
else if (board[2][0] == Tiles.X && board[2][1] == Tiles.X && board[2][2] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
else if (board[0][1] == Tiles.X && board[1][1] == Tiles.X && board[2][1] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
else if (board[0][2] == Tiles.X && board[1][2] == Tiles.X && board[2][2] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
else if (board[2][0] == Tiles.X && board[1][1] == Tiles.X && board[0][2] == Tiles.X){
System.out.println("Player X wins!");
return 1;
}
//check if player O wins
else if (board[0][0] == Tiles.O && board[0][1] == Tiles.O && board[0][2] == Tiles.O){
System.out.println("Player O wins!");
return 0;
}
else if (board[0][0] == Tiles.O && board[1][1] == Tiles.O && board[2][2] == Tiles.O){
System.out.println("Player O wins!");
return 0;
}
else if (board[0][0] == Tiles.O && board[1][0] == Tiles.O && board[2][0] == Tiles.O){
System.out.println("Player O wins!");
return 0;
}
else if (board[1][0] == Tiles.O && board[1][1] == Tiles.O && board[1][2] == Tiles.O){
System.out.println("Player O wins!");
return 0;
}
else if (board[2][0] == Tiles.O && board[2][1] == Tiles.O && board[2][2] == Tiles.O) {
System.out.println("Player O wins!");
return 0;
}
else if (board[0][1] == Tiles.O && board[1][1] == Tiles.O && board[2][1] == Tiles.O) {
System.out.println("Player O wins!");
return 0;
}
else if (board[0][2] == Tiles.O && board[1][2] == Tiles.O && board[2][2] == Tiles.O){
System.out.println("Player O wins!");
return 0;
}
else if (board[2][0] == Tiles.O && board[1][1] == Tiles.O && board[0][2] == Tiles.O) {
System.out.println("Player O wins!");
return 0;
}
else
return 2;
}
}
第二次嘗試放置X時出現問題(如果O占用了空間),則從O復制粘貼的代碼,並且沒有更改播放器和圖塊。
System.out.println("Player O's turn.");
board[row][col] = Tiles.O;
閱讀這段代碼很痛苦-_-但最終會變得更好;)。
之所以在將字母打印到板上(我已經在Mac上運行)時發生這種情況的原因是,當您打印字母時,您使用的是println ...,因為您隨附了您應該使用printf的每個塊一定的空間...例如:
System.out.printf("%10s", LetterVariableForTurn);
這將使LetterVariableForTurn可以在其中寫入10個文本空間。
這是一個可以幫助您更多的鏈接: printf
希望這可以幫助!
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