分配char时，整数出现在打印行中

Question

我正在尝试让打印行阅读＆＃34;访问代码XXX：＆＃34;通过使用条件运算符。但是，它只给了我＆＃34;访问代码888888：＆＃34;。我不确定如何正确格式化char以显示为＆＃34; X＆＃34;在命令行而不是＆＃34; 88＆＃34;。

public static final int MAX_GUESSES = 15;
public static void main(String[] args) {

    Random rng = new Random();
    Scanner input = new Scanner(System.in);

    int counter = 0;
    int digit1 = 5;
    int digit2 = 5;
    int digit3 = 5;
    int inputDigit1 = 12;
    int inputDigit2 = 12;
    int inputDigit3 = 12;
    int accessCode;
    char f = 'X';
    int x1;
    int x2;
    int x3;

    while(counter < MAX_GUESSES) {

        counter++;

        x1 = (inputDigit1 == digit1)?(digit1):f;
        x2 = (inputDigit2 == digit2)?(digit2):f;
        x3 = (inputDigit3 == digit3)?(digit3):f;

        System.out.print("Access Code " + x1 + x2 + x3 + ":");
        accessCode = input.nextInt();

        inputDigit1 = accessCode/100;
        inputDigit2 = (accessCode%100)/10;
        inputDigit3 = accessCode%10;

    }

}