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How can I check whether an array is null / empty?
...ion of "empty" is if all the elements are null:
Object arr[] = new Object[10];
boolean empty = true;
for (int i=0; i<arr.length; i++) {
if (arr[i] != null) {
empty = false;
break;
}
}
or
Object arr[] = new Object[10];
boolean empty = true;
for (Object ob : arr) {
if (ob != null)...
When should I use perror(“…”) and fprintf(stderr, “…”)?
...ls due to out of range, I would use perror.
– freeboy1015
Aug 24 '12 at 2:22
6
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CURL to access a page that requires a login from a different page
...anical snail
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Linq to EntityFramework DateTime
...
answered Nov 10 '10 at 15:56
Justin NiessnerJustin Niessner
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Concatenate multiple files but include filename as section headers
...eutils) as well.
– ArjunShankar
Apr 10 '12 at 16:35
8
Awesome -n +1 option! An alternative: head ...
How do I set the default font size in Vim?
... wide. Why ?
– Moebius
Jul 7 '13 at 10:23
...
Can you determine if Chrome is in incognito mode via a script?
...
10 Answers
10
Active
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How to delete and replace last line in the terminal using bash?
...
echo a carriage return with \r
seq 1 1000000 | while read i; do echo -en "\r$i"; done
from man echo:
-n do not output the trailing newline
-e enable interpretation of backslash escapes
\r carriage return
...
Override browser form-filling and input highlighting with HTML/CSS
...
answered Mar 10 '10 at 11:54
Phil RykoffPhil Rykoff
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onTouchListener warning: onTouch should call View#performClick when a click is detected
... |
edited Apr 18 at 19:10
answered Jul 13 '19 at 20:32
y...