java - Java <=无法正常工作

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7年前关闭。

    do {
        System.out.println("Please enter the cost: ");
        Cost1 = input.nextDouble();
    } while (Cost1 <= 100000 || Cost1 >= 900000);

那是我的代码。如果输入100001，它将跳过循环，但是如果输入100000，则不会。为什么是这样？

最佳答案

条件错误（根据您的期望）

Cost1 <= 100000 || Cost1 >= 900000

手段

While Cost1 <= 100k OR Cost1 >=900K

因此，当您放置100001时，其不小于等于100k也不大于等于900K