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How do I count the number of occurrences of a char in a String?
...r answer and what I know all ways to do this using a one-liner:
String testString = "a.b.c.d";
1) Using Apache Commons
int apache = StringUtils.countMatches(testString, ".");
System.out.println("apache = " + apache);
2) Using Spring Framework's
int spring = org.springframework.util.StringU...
Convert a string representation of a hex dump to a byte array using Java?
...exString) seems to be about 20% faster than the above solution in my micro tests (for whatever little they are worth), as well as correctly throwing exceptions on invalid input (e.g. "gg" is not a valid hexString but will return -77 using the solution as proposed).
– Trevor Fre...
Remove vertical padding from horizontal ProgressBar
..."-6dp" worked for me. Wonder whether it's dependent on device? I have only tested on Xperia Z1
– Thorbjørn Kappel Hansen
Oct 29 '14 at 5:27
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How can I echo a newline in a batch file?
...put "hello\nworld" in a txt file: (echo hello & echo world) >> ./test.txt
– Ned Martin
Mar 23 '16 at 6:50
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Change cursor to hand when mouse goes over a row in table
...
@OlivierBoissé Just tested and it most definitely DOES work with BS 4
– Gabe Hiemstra
Jun 14 '18 at 12:30
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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
... are more favorable to -Os optimizations.
Here are the results for time ./test 0 0 on several processors (user time reported):
Processor (System-on-Chip) Compiler Time (-O2) Time (-Os) Fastest
AMD Opteron 8350 gcc-4.8.1 0.704s 0.896s -O2
AMD FX-63...
How to truncate milliseconds off of a .NET DateTime
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Using this method caused some of my unit tests to fail: Expected: 2010-05-05 15:55:49.000 But was: 2010-05-05 15:55:49.000. I'm guessing due to what Joe mentioned about fractions of a millisecond.
– Seth Reno
May 5 '10 at 20:...
Custom Compiler Warnings
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Not the greatest answer. -1 for thinking your inability to come up with a reason for not using it merits criticism. This attitude discourages authenticity.
– Mike Socha III
Mar 25 '16 at 21:32
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Visual Studio 2012 - Intellisense sometimes disappearing / broken
...en't yet figured out why more drastic steps are required in some cases.)
Tested in VS 2013/15
I haven't had this issues since upgrading my RAM
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Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...pproach suggested by mpaf uses much less memory, but is 2-3x slower for my test case.
from django.core.paginator import Paginator
def chunked_iterator(queryset, chunk_size=10000):
paginator = Paginator(queryset, chunk_size)
for page in range(1, paginator.num_pages + 1):
for obj in ...