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What is the difference between ? and Object in Java generics?
...Eclipse seems to be giving me an option to choose between a type of Object and a type of '?'.
6 Answers
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Loop through all the files with a specific extension
...aste it and find it not working. A perfect example would be someone who is converting all ".jpg" files to ".png" before carrying out a crucial function
– puk
Jul 7 '17 at 19:50
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How to check whether a string contains a substring in Ruby
...oMethodError: undefined method `include?' for nil:NilClass should always convert the value being included to the expected value:- test.to_s.include?("test")
– Gary
May 8 '18 at 21:24
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How to inspect the return value of a function in GDB?
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I imagine there are better ways to do it, but the finish command executes until the current stack frame is popped off and prints the return value -- given the program
int fun() {
return 42;
}
int main( int argc, char *v[] ) {
fun();
return 0;
}
You can debug it as such ...
How to prevent multiple instances of an Activity when it is launched with different Intents
... using the "Open" button on the Google Play Store app (previously called Android Market). It seems that launching it from the Play Store uses a different Intent than launching it from the phone's application menu of icons. This is leading to multiple copies of the same Activity being launched, w...
Best way of invoking getter by reflection
...will always have a getter method. I know that I can use setAccesible(true) and get its value (when there is no PermissionManager), though I prefer to invoke its getter method.
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How to get thread id from a thread pool?
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@petrbel He's answering the question title perfectly, and the thread id is close enough in my opinion when the OP requests "something like 'thread #3 of 5".
– CorayThan
Sep 1 '15 at 19:20
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Paste text on Android Emulator
... number)
This works really well for links as the message is automatically converted into a hyperlink which you can click without having to copy / paste it into the browser.
Once the emulator receives the message you can copy it and paste it wherever you like.
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Assign one struct to another in C
...re an issue than it is for assignment of the built in types, like integers and doubles - assignment is not an atomic operation for these either.
– anon
Feb 20 '10 at 13:58
2
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Outlook autocleaning my line breaks and screwing up my email format
... in 2008 when that answer was posted. Here is a little c# snippet to help convert the body and send the message in HTML format:
body = string.Format("<font face='calibri,arial,sans-serif'>{0}<font/>", body.Replace("\r\n", "<br>"));
using (var smtpClient = new SmtpClient() { Hos...