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Why is the String class declared final in Java?
...dd a sentence as to how preventing subclasses enforces immutability. Right now, it is kind of a half-answer.
– Thilo
Jan 15 '10 at 1:29
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Two submit buttons in one form
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If you give each one a name, the clicked one will be sent through as any other input.
<input type="submit" name="button_1" value="Click me">
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C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]
If DateTime is an object and default C# parameters can only be assigned compile-time constants, how do you provide default values for objects like DateTime?
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Explain the concept of a stack frame in a nutshell
...he "frame," although this is likely architecture-dependent. The processor knows how many bytes are in each frame and moves the stack pointer accordingly as frames are pushed and popped off the stack.
EDIT:
There is a big difference between higher-level call stacks and the processor's call stack.
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Render basic HTML view?
...s in the views subfolder, and that you have installed the ejs node module. If not, run the following on a Node console:
npm install ejs --save
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Read error response body in Java
...LConnection httpConn = (HttpURLConnection)_urlConnection;
InputStream _is;
if (httpConn.getResponseCode() < HttpURLConnection.HTTP_BAD_REQUEST) {
_is = httpConn.getInputStream();
} else {
/* error from server */
_is = httpConn.getErrorStream();
}
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When to use static classes in C# [duplicate]
...too. In contrast to earlier, I just consider my reasoning before doing so, now :)
– Mark S. Rasmussen
Sep 1 '11 at 7:52
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When is a C++ destructor called?
...ctor (and std::deque, though it's not used quite as much).
As most people know, std::vector will allocate a larger block of memory when/if you add more items than its current allocation can hold. When it does this, however, it has a block of memory that's capable of holding more objects than are cur...
Passing functions with arguments to another function in Python?
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What if perform and action1, action2 on different files? @S.Lott
– alper
Sep 2 '19 at 18:47
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How to print the contents of RDD?
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If you want to view the content of a RDD, one way is to use collect():
myRDD.collect().foreach(println)
That's not a good idea, though, when the RDD has billions of lines. Use take() to take just a few to print out:
myRDD...