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What is the difference in maven between dependency and plugin tags in pom xml?
...dencies are Jar files.
But the difference between them is, most of the work in maven is done using plugins; whereas dependency is just a Jar file which will be added to the classpath while executing the tasks.
For example, you use a compiler-plugin to compile the java files. You can't use comp...
How do you format an unsigned long long int using printf?
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Use the ll (el-el) long-long modifier with the u (unsigned) conversion. (Works in windows, GNU).
printf("%llu", 285212672);
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Is C++ context-free or context-sensitive?
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Below is my (current) favorite demonstration of why parsing C++ is (probably) Turing-complete, since it shows a program which is syntactically correct if and only if a given integer is prime.
So I assert that C++ is neither context-free nor context-...
How to test if a double is an integer
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if ((variable == Math.floor(variable)) && !Double.isInfinite(variable)) {
// integer type
}
This checks if the rounded-down value of the double is the same as the double.
Your variable could have an int or double value and Math.floor(v...
How can I know which parts in the code are never used?
...ies of unused code:
the local one, that is, in some functions some paths or variables are unused (or used but in no meaningful way, like written but never read)
the global one: functions that are never called, global objects that are never accessed
For the first kind, a good compiler can help:
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Error: free(): invalid next size (fast):
What is this strange error I'm getting? I'm compiling C++ using g++ on Ubuntu 10.10. It pops up randomly when I run the executable (maybe 2 times in 8 hours, with 10 compiles an hour). However, if I make clean and recompile it goes away most of the time.
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How to create a directory and give permission in single command
How to create a directory and give permission in single command in Linux?
8 Answers
8
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What does axis in pandas mean?
...0 along the rows (namely, index in pandas), and axis=1 along the columns. For added clarity, one may choose to specify axis='index' (instead of axis=0) or axis='columns' (instead of axis=1).
+------------+---------+--------+
| | A | B |
+------------+---------+---------
| ...
Media Queries: How to target desktop, tablet, and mobile?
...ese are the best breakpoints:
@media (min-width:320px) { /* smartphones, portrait iPhone, portrait 480x320 phones (Android) */ }
@media (min-width:480px) { /* smartphones, Android phones, landscape iPhone */ }
@media (min-width:600px) { /* portrait tablets, portrait iPad, e-readers (Nook/Kindle),...
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is no
...many users on my web site (20000-60000 per day), which is a download site for mobile files. I have remote access to my server (windows server 2008-R2). I've received "Server is unavailable" errors before, but am now seeing a connection timeout error.
I'm not familiar with this - why does ...