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Java heap terminology: young, old and permanent generations?
... Java VMs that use class data sharing,
this generation is divided into
read-only and read-write areas.
Code Cache (non-heap): The HotSpot Java VM also includes a code cache,
containing memory that is used for
compilation and storage of native
code.
Java uses generational garbage col...
How can we match a^n b^n with Java regex?
...g".
Rather than immediately giving out the pattern, this answer will guide readers through the process of deriving it. Various hints are given as the solution is slowly constructed. In this aspect, hopefully this answer will contain much more than just another neat regex pattern. Hopefully readers w...
Difference between Bridge pattern and Adapter pattern
...nsane number of classes. Let's say you have:
MemoryMappedFile and DirectReadFile types of file objects. Let's say you want to be able to read files from various sources (Maybe Linux vs. Windows implementations, etc.). Bridge helps you avoid winding up with:
MemoryMappedWindowsFile
MemoryMapp...
How to call a shell script from python code?
...e], stdout=temp_file)
with open("temp.txt",'r') as file:
output = file.read()
print(output)
Don't forget to take a look at the doc subprocess
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...
I'd like this answer enough to extend it. Read the numbers one time through to get the min/max values so that you can assume distribution. Then, take one of two options. If the range is small enough, build an array where you can simply check off numbers as they occ...
What's the difference between the various methods to get a Context?
...on, you
usually have two kinds of Context,
Activity and Application.
Reading the article a little bit further tells about the difference between the two and when you might want to consider using the application Context (Activity.getApplicationContext()) rather than using the Activity context t...
How to prevent a click on a '#' link from jumping to top of page?
..., do an event.preventDefault(). This is more clear for the people who will read your code.
– RvdK
Jul 15 '10 at 6:06
@...
How can I get the list of files in a directory using C or C++?
.../* print all the files and directories within directory */
while ((ent = readdir (dir)) != NULL) {
printf ("%s\n", ent->d_name);
}
closedir (dir);
} else {
/* could not open directory */
perror ("");
return EXIT_FAILURE;
}
It is just a small header file and does most of the simp...
What makes Lisp macros so special?
Reading Paul Graham's essays on programming languages one would think that Lisp macros are the only way to go. As a busy developer, working on other platforms, I have not had the privilege of using Lisp macros. As someone who wants to understand the buzz, please explain what makes this feature s...
How do I convert between big-endian and little-endian values in C++?
...orm native order, all that counts is the byte order of the stream your are reading from, and you better hope it's well defined.
Note: it was remarked in the comment that absent explicit type conversion, it was important that data be an array of unsigned char or uint8_t. Using signed char or char (i...