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How to see if an NSString starts with a certain other string?
...g to check to see if a string that I am going to use as URL starts with http. The way I am trying to check right now doesn't seem to be working. Here is my code:
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What is the result of % in Python?
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The % (modulo) operator yields the remainder from the division of the first argument by the second. The numeric arguments are first converted to a common type. A zero right argument raises the ZeroDivisionError exception. The arguments may b...
Why should I use an IDE? [closed]
In another question, Mark speaks highly of IDEs, saying "some people still just dont know "why" they should use one...". As someone who uses vim for programming, and works in an environment where most/all of my colleagues use either vim or emacs for all of their work, what are the advantages of I...
Getting the count of unique values in a column in bash
... them in decreasing order of count (highest count first). How would I accomplish this in a Linux command line environment?
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Calling a Method From a String With the Method's Name in Ruby
...all functions directly on an object
a = [2, 2, 3]
a.send("length")
# or
a.public_send("length")
which returns 3 as expected
or for a module function
FileUtils.send('pwd')
# or
FileUtils.public_send(:pwd)
and a locally defined method
def load()
puts "load() function was executed."
end
s...
How is a CRC32 checksum calculated?
Maybe I'm just not seeing it, but CRC32 seems either needlessly complicated, or insufficiently explained anywhere I could find on the web.
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How to add an extra source directory for maven to compile and include in the build jar?
In addition to the src/main/java, I am adding a src/bootstrap directory that I want to include in my build process, in other words, I want maven to compile and include the sources there in my build. How!?
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Why does Math.round(0.49999999999999994) return 1?
In the following program you can see that each value slightly less than .5 is rounded down, except for 0.5 .
5 Answers
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What issues should be considered when overriding equals and hashCode in Java?
What issues / pitfalls must be considered when overriding equals and hashCode ?
11 Answers
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