如何让代码在数组中将值（x * 2）加倍小于10？(How to get code to double values (x * 2) less than 10 in an array? (Java))
我正在上一个在线Java编程课程（我是初学者），我无法弄清楚如何正确完成代码。 我已经写了我认为要包含的内容，但是我遗漏了一些会让代码完全运行的东西。
方向：将任何元素的值加倍，小于minVal。 例如：如果
minVal = 10，则dataPoints = {2, 12, 9, 20}变为{4, 12, 18, 20}dataPoints = {2, 12, 9, 20}{4, 12, 18, 20}。public class StudentScores { public static void main (String [] args) { final int NUM_POINTS = 4; int[] dataPoints = new int[NUM_POINTS]; int minVal = 0; int i = 0; dataPoints[0] = 2; dataPoints[1] = 12; dataPoints[2] = 9; dataPoints[3] = 20; minVal = 10; // DO NOT EDIT ANYTHING ABOVE THIS COMMENT. ABOVE IS THE DEFAULT CODE OF ASSIGNMENT for (i = 0; dataPoints[i] < minVal; ++i) { dataPoints[i] = dataPoints[i] * 2; } // DO NOT EDIT ANYTHING BELOW THIS COMMENT. BELOW IS DEFAULT CODE OF ASSIGNMENT for (i = 0; i < NUM_POINTS; ++i) { System.out.print(dataPoints[i] + " "); } System.out.println(); return; } }我评论了什么是不可混淆的，因为我使用的是在线交互式书籍，无法编辑或更改默认代码。 另外，我们在本章中使用数组。
我是这个网站的新手，因为我不知道stackoverflow的不成文方式，但我在网上多次搜索，看看如何在java中加倍数组的值，但我没有得到搜索结果我需要帮助我。
我得到的错误消息是：
Testing minVal = 10 and dataPoints = {2, 12, 9, 20} Expected output: 4 12 18 20 Your output: 4 12 9 20我认为编译器应该能够完全读取行以注册9也小于10，因此应该加倍到18，但事实并非如此。 我还缺少什么才能阅读9？
I'm taking an online Java programming class (I'm a beginner) and I cannot figure how to correctly complete the code. I've already written what I think is to be included, however I'm missing something that would make the code work completely.
Directions: Double any element's value that is less than minVal. Ex: If
minVal = 10, thendataPoints = {2, 12, 9, 20}becomes{4, 12, 18, 20}.public class StudentScores { public static void main (String [] args) { final int NUM_POINTS = 4; int[] dataPoints = new int[NUM_POINTS]; int minVal = 0; int i = 0; dataPoints[0] = 2; dataPoints[1] = 12; dataPoints[2] = 9; dataPoints[3] = 20; minVal = 10; // DO NOT EDIT ANYTHING ABOVE THIS COMMENT. ABOVE IS THE DEFAULT CODE OF ASSIGNMENT for (i = 0; dataPoints[i] < minVal; ++i) { dataPoints[i] = dataPoints[i] * 2; } // DO NOT EDIT ANYTHING BELOW THIS COMMENT. BELOW IS DEFAULT CODE OF ASSIGNMENT for (i = 0; i < NUM_POINTS; ++i) { System.out.print(dataPoints[i] + " "); } System.out.println(); return; } }I made comments of what isn't to be messed with, as I am using an online interactive book and cannot edit or change the default code. Additionally, we are working with arrays in this chapter.
I'm new to this site in the sense that I don't know the unwritten ways of stackoverflow, but I've search multiple times online to see how to double the values for an array in java but I do not get the search results I need to help me.
The error messages I get are:
Testing minVal = 10 and dataPoints = {2, 12, 9, 20} Expected output: 4 12 18 20 Your output: 4 12 9 20I thought that the compiler should be able to read the lines fully to register that 9 is also less than 10 and thus should be doubled to 18, but it doesn't. What am I missing to make 9 be read as well?
原文：https://stackoverflow.com/questions/39719460
最满意答案
如果我理解正确，问题就在于以下几点：
<textarea id="txtArea" rows="10" cols="50" ng-model="$parent.comments" type="text" ng-trim="false"></textarea> {{comments}}
{{comments}}没有显示换行符。但这是自然的HTML行为。 还有自然的HTML解决方案
<pre>：<textarea id="txtArea" rows="10" cols="50" ng-model="$parent.comments" type="text" ng-trim="false"></textarea> <pre>{{comments}}</pre>见http://www.w3schools.com/tags/tag_pre.asp ：
<pre>标签定义了预格式化的文本。
<pre>元素中的文本以固定宽度字体（通常为Courier）显示，并保留空格和换行符。If I do understand you correctly, the issue is in these lines:
<textarea id="txtArea" rows="10" cols="50" ng-model="$parent.comments" type="text" ng-trim="false"></textarea> {{comments}}that the
{{comments}}is not showing line breaks.But that's natural HTML behaviour. And there is also natural HTML solution
<pre>:<textarea id="txtArea" rows="10" cols="50" ng-model="$parent.comments" type="text" ng-trim="false"></textarea> <pre>{{comments}}</pre>see http://www.w3schools.com/tags/tag_pre.asp:
The
<pre>tag defines preformatted text.Text in a
<pre>element is displayed in a fixed-width font (usually Courier), and it preserves both spaces and line breaks.
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