字符串数组:“从不使用在"i ++"处更改的值" [英] String array: 'The value changed at 'i++' is never used'

问题描述

这是我的代码:

String[] queries = new String[2];
int i = 0;
Boolean result;
queries[i++] = "<query 1>";
queries[i++] = "<query 2>"; //Warning shown here
result = dbOpenHelper.ExecuteMyTransaction(queries);

第二个 i ++ 突出显示，并显示警告永远不会使用在'i ++'处更改的值" .该代码是由另一个人编写的，据我所知，这里< query 1> 和< query 2> 被分配给 queries [1] 和 queries [2] ，但是随后它必须显示错误，因为数组的大小为2.没有错误，这种情况使我感到困惑.我可以安全地删除第二个作业，还是将第一个作业更改为 queries [i] ?

The second i++ gets highlighted and the warning 'The value changed at 'i++' is never used' is shown. This code was written by another person, and to my knowledge, here <query 1> and <query 2> get assigned to queries[1] and queries[2] respectively, but then it must show an error, as the array is of size 2. There's no error and this kind of confuses me on what's happening here. Can I safely remove the second assignment, or change the first one to queries[i]?

推荐答案

该代码正确无误，您可以放心地忽略此警告，或仅将带下划线的 i ++ 替换为 i .

The code is correct and you can safely ignore this warning or replace underlined i++ with just i.

此警告仅表示由于在该范围内不再使用 i 变量，因此增加其值或不起作用均无效，并且毫无意义.

This warning simply indicates that as there's no further use of i variable in that scope, so incrementing its value or not makes no effect and is simply pointless.

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