你好，Variable+'n'+is+never+used是定义局部变量，就会报“变量定义了，但是没有使用”的警告！，，并且变量也没有被赋值。很容易迷惑人。把变量改为全局变量后，就不会有警告了。或者在定义的前面加上 volatile 后，编译就通过了。这个和编译器的库有关。
i have created a button(id- btnBank). But there is waraning of variable 'btnBank'is never used. code in activity_maps.xml <Button android:id="@+id/btnBank" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Bank" /> code in MapsActivity.java Butto...
I have this block of code where my app, supposedly, when the user inserts a right password and a right email, goes to the main activity, although when I used the run method, it says that the variable is never used. @Override protected void onPostExecute(final Boolean success) { mAuthTask...
importorg.eclipse.jdt.core.compiler.IProblem;//导入方法依赖的package包/类publicstaticbooleanisUnusedMember(IProblemLocation problem){intid= problem.getProblemId();returnid == IProblem.UnusedPrivateMethod || id == IProblem.UnusedPrivateConstructor || id == IProblem.UnusedPrivateField || ...
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問題描述 “未分配變量”用於從未使用過的變量(我認為) ("Variable not assigned" for variable that is never used (I think)) 所以我有這段代碼,其中我有一個序列化的預製件,然後我將其實例化。然後我對實例做一些事情。但是,當我運行遊戲時,我收到一個錯誤
Eslint may be considering I'm not using import because I'm not implementing it between 'script' tags but I'm directly using it on 'template' tags your code is invalid and this rule correctly report on this. [Vue warn]: Error in render: "TypeError: _vm.formatTitle is not a function...
In this component: <template lang="html"> <button v-track:[trackName].click>my button</button> </template> <script setup lang="ts"> const trackName = 'MyButton'; </script> I get a warning: 'trackName' is declared but its value is never r...
I got the "variable is assigned but its value is never used" Warning even after assign the values to the field. Why it will show that warning? Thanks, Sowndaiyan All replies (12) Monday, May 15, 2017 11:02 AM |2 votes Your are seeing ...
An application has at least one possible path through its code that reads a variable before any value is assigned to it.If a variable has never been assigned a value, it holds the default value for its data type. For a reference data type, that default value is Nothing (Visual Basic...