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What is “2's Complement”?
I'm in a computer systems course and have been struggling , in part, with Two's Complement . I want to understand it but everything I've read hasn't brought the picture together for me. I've read the wikipedia article and various other articles, including my text book .
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What does “to stub” mean in programming?
For example, what does it mean in this quote?
9 Answers
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jQuery - Detect value change on hidden input field
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So this is way late, but I've discovered an answer, in case it becomes useful to anyone who comes across this thread.
Changes in value to hidden elements don't automatically fire the .change() event. So, wherever it is that you're setting that value, you also have to tell jQuery to t...
The input is not a valid Base-64 string as it contains a non-base 64 character
I have a REST service that reads a file and sends it to another console application after converting it to Byte array and then to Base64 string. This part works, but when the same stream is received at the application, it gets manipulated and is no longer a valid Base64 string. Some junk characters ...
Using StringWriter for XML Serialization
...ally: you are not matching the declared encoding (in the XML declaration) with the datatype of the input parameter. If you manually added <?xml version="1.0" encoding="utf-8"?><test/> to the string, then declaring the SqlParameter to be of type SqlDbType.Xml or SqlDbType.NVarChar would g...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
...y need to create a single directory in an existing hierarchy, rsync can do it in one operation. I'm quite a fan of rsync as a much more versatile cp replacement, in fact:
rsync -a myfile /foo/bar/ # works if /foo exists but /foo/bar doesn't. bar is created.
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What is the difference between const_iterator and non-const iterator in the C++ STL?
What is the difference between a const_iterator and an iterator and where would you use one over the other?
7 Answers
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Why an interface can not implement another interface?
...ion.
A 100% abstract class is functionally equivalent to an interface but it can also have implementation if you wish (in this case it won't remain 100% abstract), so from the JVM's perspective they are different things.
Also the member variable in a 100% abstract class can have any access qualifi...
How can I run code on a background thread on Android?
I want some code to run in the background continuously. I don't want to do it in a service. Is there any other way possible?
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Replace input type=file by an image
... people, I'd like to customize the ugly input type=file , and I know that it can't be done without some hacks and/or javascript . But, the thing is that in my case the upload file buttons are just for uploading images ( jpeg|jpg|png|gif ), so I was wondering if I could use a " clickable " image wh...