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How to remove all white spaces in java [duplicate]
... substring not substr , thats the error in your program.
Moreover you can do this in one single line if you are ok in using regular expression.
a.replaceAll("\\s+","");
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What is the difference between a field and a property?
...nts out that Properties are not required to encapsulate fields, they could do a calculation on other fields, or serve other purposes.
@GSS points out that you can also do other logic, such as validation, when a property is accessed, another useful feature.
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How to determine if a list of polygon points are in clockwise order?
Having a list of points, how do I find if they are in clockwise order?
23 Answers
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Which is faster in Python: x**.5 or math.sqrt(x)?
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first rule of optimization: don't do it
second rule: don't do it, yet
Here's some timings (Python 2.5.2, Windows):
$ python -mtimeit -s"from math import sqrt; x = 123" "x**.5"
1000000 loops, best of 3: 0.445 usec per loop
$ python -mtimeit -s"from m...
How to deal with floating point number precision in JavaScript?
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From the Floating-Point Guide:
What can I do to avoid this problem?
That depends on what kind of
calculations you’re doing.
If you really need your results to add up exactly, especially when you
work with money: use a special decimal
datatype.
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Java NIO FileChannel versus FileOutputstream performance / usefulness
...od option to use NIO based classes for File I/O, if I am not looking at random access or other such advanced features?
7 An...
jQuery: count number of rows in a table
How do I count the number of tr elements within a table using jQuery?
11 Answers
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Get UIScrollView to scroll to the top
How do I make a UIScrollView scroll to the top?
14 Answers
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How to amend older Git commit? [duplicate]
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Note - you don't have to git commit after git add -A, simply git rebase --continue will keep your changes.
– manyways
Jan 14 '16 at 17:32
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Is there a bash command which counts files?
...ld process. log* is expanded by the shell, not ls, so a simple echo would do.
– cdarke
Jul 3 '12 at 9:24
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