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How to iterate over a JSONObject?
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for my case i found iterating the names() works well
for(int i = 0; i<jobject.names().length(); i++){
Log.v(TAG, "key = " + jobject.names().getString(i) + " value = " + jobject.get(jobject.names().getString(i)));
}
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Why use argparse rather than optparse?
... example of this than command-line parsers -- but the email package vs the myriad old ways to deal with similar issues isn't too far away either;-).
You may make threatening grumbles in the docs about the old ways being "deprecated", but (as long as you need to keep backwards compatibility) you can...
How to find out what character key is pressed?
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"Clear" JavaScript:
<script type="text/javascript">
function myKeyPress(e){
var keynum;
if(window.event) { // IE
keynum = e.keyCode;
} else if(e.which){ // Netscape/Firefox/Opera
keynum = e.which;
}
alert(String.f...
How to remove duplicate white spaces in string using Java?
...pe white spaces with one white space of its type. That is:
Hello!\n\n\nMy World
will be
Hello!\nMy World
Notice there are still leading and trailing white spaces. So my complete solution is:
str = str.trim().replaceAll("(\\s)+", "$1"));
Here, trim() replaces all leading and traili...
How to use Greek symbols in ggplot2?
My categories need to be named with Greek letters. I am using ggplot2 , and it works beautifully with the data. Unfortunately I cannot figure out how to put those greek symbols on the x axis (at the tick marks) and also make them appear in the legend. Is there any way to do it?
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QString to char* conversion
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Maybe
my_qstring.toStdString().c_str();
or safer, as Federico points out:
std::string str = my_qstring.toStdString();
const char* p = str.c_str();
It's far from optimal, but will do the work.
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Extract source code from .jar file
... edited Feb 11 '13 at 22:04
Jeromy French
11.1k1313 gold badges6767 silver badges117117 bronze badges
answered Sep 24 '12 at 16:18
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psql - save results of command to a file
...ut of the select query in the filename provided as a csv file
EDIT:
For my psql server the following command works this is an older version v8.5
copy (select * from table1) to 'full_path_filename' csv header;
share
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Add border-bottom to table row
...lem like this before. I don't think tr can take a border styling directly. My workaround was to style the tds in the row:
<tr class="border_bottom">
CSS:
tr.border_bottom td {
border-bottom: 1px solid black;
}
shar...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...ivss. See Floating point division vs floating point multiplication, where my answer has a section on why rcpps is not a throughput win anymore. (Or a latency win), and numbers on divide throughput/latency.
– Peter Cordes
Apr 25 '18 at 11:38
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