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Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Wh
...and started getting the following message on the console when launching my application using Eclipse. The app works fine but I would like to find out the cause of the problem and hopefully a fix for it.
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How can I send an email by Java application using GMail, Yahoo, or Hotmail?
Is it possible to send an email from my Java application using a GMail account? I have configured my company mail server with Java app to send email, but that's not going to cut it when I distribute the application. Answers with any of using Hotmail, Yahoo or GMail are acceptable.
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How to delete a file from SD card?
...
Change for Android 4.4+
Apps are not allowed to write (delete, modify ...) to external storage except to their package-specific directories.
As Android documentation states:
"Apps must not be allowed to write to secondary external storage
dev...
Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABL...
运行故障：edu.mit.appinventor aicompanion3: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent. Strongly consider using FLAG IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being ...
【解决】error 1101 unable to get a response with the specified url - A...
请求标头用字典的话，就会出现 error 1101 unable to get a response with the specified url 错误，
改为二元列表就可以了：
Attempt to invoke virtual method 'boolean android.graphics.Bitmap.comp...
Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
原因：调用 TaifunImage 时给定的图片路径为空导致的。
解决：指定有效的图片路径，或者拍照...
Rails - Could not find a JavaScript runtime?
...was a bit hairy as this didn't fix it right away and I was also trying new apps with 3.0.9 and 3.0.4 but got (different) errors with them. Finally I did a new app again - and also got rails rc5 with it and added the rubytheracer and did a bunlde update and finally I can get the server up and running...
In Objective-C why should I check if self = [super init] is not nil?
... by standard practices, and then return prematurely if nil, basically your app is still not going to work correctly.
If you think about it, even though that if (self != nil) check is there, for proper operation of your class, 99.99% of the time you actually do need self to be non-nil.
Now, suppose...
java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...存可以存在于什么地方？
Java代码
浏览器---?浏览器和app之间---?分过层的app-?数据库
浏览器---?浏览器和app之间---?分过层的app-?数据库
在上图中,我们可以看到一次请求的一般流程,下面我们重新绘制这张图,让我们的结构稍...
Sequelize.js: how to use migrations and sync
...k agnostic migration tool for Node.JS to perform pending migrations before app starts.
You can get a list of pending/not yet executed migrations like this:
umzug.pending().then(function (migrations) {
// "migrations" will be an Array with the names of
// pending migrations.
});
Then execute...