java - 初学者帮助 : What is wrong with this method?

Question

我正在创建一个 Tic Tac Toe 游戏，这就是我检查胜利的方式。我在这部分代码中得到了错误列表:

/tmp/java_hoEysf/TicTacToe.java:195: error: not a statement Public void Checkforwin(); ^ /tmp/java_hoEysf/TicTacToe.java:195: error: ';' expected Public void Checkforwin(); ^ /tmp/java_hoEysf/TicTacToe.java:195: error: illegal start of expression Public void Checkforwin();

谁能告诉我我做错了什么？ (代码不完整，我只是想知道为什么该方法不起作用。)

代码:

public void checkForWin() {     
    if (board [0][0] + board[0][1] + board[0][2] == 15) {
        btnA3.setText("Ax");
        win = 1;
    }

    if (board [0][0] + board[0][1] + board[0][2] == 30) {
        btnA3.setText("Ao");
        win = 2;
    }

    if (board[1][0] + board[1][1] + board[1][2] == 15) {
        btnA3.setText("Ax");
        win = 1;
    }

    if (board[1][0] + board[1][1] + board[1][2] == 30) {
        btnA3.setText("Ao");
        win = 2;
    }

    if (board[2][0] + board[2][1] + board[2][2] == 15) {
        btnA3.setText("Ax");
        win = 1;
    }

    if (board[2][0] + board[2][1] + board[2][2] == 30) {
        btnA3.setText("Ao");
        win = 2;
    }

    if (board[0][0] + board[1][0] + board[2][0] == 15) {
        btnA3.setText("Ax");
        win = 1;
    }

    if (board[0][0] + board[1][0] + board[2][0] == 30) {
        btnA3.setText("Ao");
        win = 2;
    }
}   

Answer 1

在Java中，正确的关键字是public而不是Public，实际上它是区分大小写的。

您可以找到Java中所有现有关键字及其含义的列表here .