用BufferedReader替換掃描儀

Question

我有一個愚蠢的問題：如何在此方法中用BufferedReader替換Scanner：

public Coordinates getShot() {
    Scanner scanner = new Scanner(System.in);
    int x,y;
    do {
        System.out.print("Enter Х: ");
        x = Integer.parseInt(scanner.nextLine());
        System.out.print("Enter Y: ");
        y = Integer.parseInt(scanner.nextLine());
        System.out.printf("\nYou entered: [%d,%d]\n", x, y);
        if(!Coordinates.checkCoordinates(x, y))
            System.out.println("Error");
    } while(!Coordinates.checkCoordinates(x ,y));
    Coordinates shot = new Coordinates(x, y);
    return shot;
}

Answer 1

請參閱掃描儀與BufferedReader

Scanner用於從流的內容中解析令牌，而BufferedReader只讀取流並且不進行任何特殊的解析。

實際上，您可以將BufferedReader傳遞給掃描程序作為要解析的字符源。

這是可能的，但是沒有興趣在這里使用BufferedReader：

BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
//....
int x,y;
System.out.print("Enter Х: ");
x = Integer.parseInt(reader.readLine());
System.out.print("Enter Y: ");
y = Integer.parseInt(reader.readLine());
System.out.printf("\nYou entered: [%d,%d]\n", x, y);