java - 如何重新提示无效 boolean 输入(java)

Question

当我运行程序时，如果我输入“true”或“false”以外的内容，它会抛出 InputMismatchException。

do {
            System.out.print("Do passengers have an individual tv screen?"
                    + "(true OR false): ");
            hasVideo = keyboard.nextBoolean();
            bus.setIndividualVideo(hasVideo);
            } while (!(hasVideo == true) && !(hasVideo == false));

Answer 1

捕获错误并将其视为无效响应...

try {
    System.out.print("Do passengers have an individual tv screen?"
                + "(true OR false): ");
    hasVideo = keyboard.nextBoolean();
} catch (InputMismatchException exp) {
    System.err.println("Please, enter only true or false");
}

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