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When to use an assertion and when to use an exception
...t the harddrive suddenly disappears.
An assertion would stop the program from running, but an exception would let the program continue running.
Note that if(group != null) is not an assertion, that is just a conditional.
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How to remove origin from git repository
Basic question: How do I disassociate a git repo from the origin from which it was cloned?
2 Answers
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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...e datatypes you have - namely, int and Integer. You're getting an Integer from valueOf on the right hand side, of course.
After the conversion, you're comparing two primitive int values. Comparison happens just as you would expect it to with respect to primitives, so you wind up comparing 128 and ...
ArrayIndexOutOfBoundsException with custom Android Adapter for multiple views in ListView
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The item view type you are returning from
getItemViewType() is >= getViewTypeCount().
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Could not load file or assembly 'xxx' or one of its dependencies. An attempt was made to load a prog
I just checked out a revision from Subversion to a new folder. Opened the solution and I get this when run:
9 Answers
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The maximum value for an int type in Go
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I originally used the code taken from the discussion thread that @nmichaels used in his answer. I now use a slightly different calculation. I've included some comments in case anyone else has the same query as @Arijoon
const (
MinUint uint = 0 ...
Converting between datetime, Timestamp and datetime64
...to datetime object that represents time in UTC on numpy-1.8:
>>> from datetime import datetime
>>> import numpy as np
>>> dt = datetime.utcnow()
>>> dt
datetime.datetime(2012, 12, 4, 19, 51, 25, 362455)
>>> dt64 = np.datetime64(dt)
>>> ts = (dt6...
How do you make Git ignore files without using .gitignore?
... the different "ignore pattern sources" that Git consider:
Patterns read from the command line for those commands that support them.
Patterns read from a .gitignore file in the same directory as the path, or in any parent directory, with patterns in the higher level files (up to the root) being ov...
Passing a string with spaces as a function argument in bash
... detailedString="$1"
fieldNumber=$2
# Retrieves Column ${fieldNumber} From The Pipe Delimited ${detailedString}
# And Strips Leading And Trailing Spaces
echo ${detailedString} | awk -F '|' -v VAR=${fieldNumber} '{ print $VAR }' | sed 's/^[ \t]*//;s/[ \t]*$//'
}
while read LINE
do
var1...
Unpacking, extended unpacking and nested extended unpacking
... we get
((a, b), c) = ((1, 2), ('t', 'h', 'i', 's'))
But now it's clear from the structure that 'this' won't be unpacked, but assigned directly to c. So we undo the substitution.
((a, b), c) = ((1, 2), 'this')
Now let's see what happens when we wrap c in a tuple:
(a,b), (c,) = [1,2],'this' ...