Question

所以我希望用户输入“true”或“false”来退出循环。就像我现在所说的那样，无论我输入什么，它都会退出循环。

public static void main(String[] args) {
    // Color guard flags
    Scanner kb = new Scanner(System.in);
    Flag yourFlag;
    double weight;
    boolean correct;
    do {
        System.out.println("Hello!\nWhat colors are your silk? (most common two)\nHow long is your pole (in feet)?"
                + "\nWhat have you named your flag?\nHow heavy is your flag (in pounds)?");
        yourFlag = new Flag(kb.next(), kb.next(), kb.nextInt(), kb.next(), kb.nextDouble());
        if (yourFlag.getWeight() >= 7) {
            System.out.println("That sounds like a cool flag! It sounds pretty heavy though.");
        } else {
            System.out.println("That sounds like a cool flag!");
        }
        System.out.println("You've entered that your flag " + yourFlag.getName() + " is " + yourFlag.getWeight() + " pounds and "
                + yourFlag.lengthOfPole + " feet long. It also has the pretty colors " + yourFlag.silkColor1 + " and " + yourFlag.silkColor2);
        System.out.println("Is that correct? (True or flase)");
        correct = kb.nextBoolean();
    }
    while (correct = false);

是的，是的，这是关于色彩保护的程序

Answer 1

correct = false是一项任务。

您应该使用!correct来测试correct是false。

示例代码;

do {
    //
}
while(!correct);
//while(correct == false)

如果你想要它的话

do {
    //
}
while(correct);
//while(correct == true)

Java如何使用来自用户的布尔输入结束do-while循环？

1 个答案: