怎么能“1” ！=" 1" [英] How can "1" != "1"

问题描述

我正在努力跟上你们的年轻人，所以我正在开始Java课程。作为家庭作业的一部分，我们提示用户提供1到1之间的数字。 3.我们在本章中也使用了while循环，所以我决定将提示放在while循环中以强制用户输入1,2或3.当它不起作用时我很惊讶，所以我写了一个5 -liner向您显示问题：

I''m trying to keep up with you youngsters, so I''m taking a beginning Java course. As part of a homework assignment, we were to prompt the user for a number between 1 & 3. We also used while loops in the chapter, so I decided to put the prompt in a while loop to force the user to enter 1, 2 or 3. I was very surprised when it did not work, so I have written a 5-liner to show you the problem:

展开 | 选择 | Wrap | 行号

推荐答案

这是一个秘密：


当你说

Here''s a secret:

When you say

展开 | 选择 | < span class =codeLinkonclick =WordWrap（this）;> Wrap | 行号

那太疯狂了！但是，知道非常重要。有趣的是

That''s insane! But, very vital to know. It''s interesting that

展开 | 选择 | Wrap | < span class =codeLinkonclick =LineNumbers（this）;>行号

那是疯了！但是，知道非常重要。有趣的是

That''s insane! But, very vital to know. It''s interesting that

展开 | 选择 | Wrap | < span class =codeLinkonclick =LineNumbers（this）;>行号

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