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Initialize class fields in constructor or at declaration?
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I disagree with rule 1 - by not specifying a default value (regardless of whether it's initialised by the compiler or not) you are leaving the developer to guess or go looking for the documentation on what the default value for that particular langua...
Error: This Android SDK requires Android Developer Toolkit version 22.6.1 or above
...u are like me, having to develop for work on a machine that is locked down by IT where everything requires admin privileges...
– cking24343
May 7 '14 at 13:30
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How to check if hex color is “too black”?
I'm trying to evaluate the darkness of a color chosen by a color picker to see if it's "too black", and if so, set it to white. I thought I could use the first characters of the hex value to pull this off. It's working, but it's switching some legitimately "light" colors too.
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AngularJS - Multiple ng-view in single template
I am building a dynamic web app by using AngularJS. Is it possible to have multiple ng-view on a single template?
6 Answe...
Oracle query to fetch column names
...quivalent for information_schema.COLUMNS is USER_TAB_COLS for tables owned by the current user, ALL_TAB_COLS or DBA_TAB_COLS for tables owned by all users.
Tablespace is not equivalent to a schema, neither do you have to provide the tablespace name.
Providing the schema/username would be of use if...
Split string based on regex
What is the best way to split a string like "HELLO there HOW are YOU" by upper case words (in Python)?
3 Answers
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private[this] vs private
... Scala introduces even more strict access modifier. Should I always use it by default? Or should I use it only in some specific cases where I need to explicitly restrict changing field value even for objects of the same class? In other words how should I choose between
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Do spurious wakeups in Java actually happen?
...was outside the futex system call. This race condition can only be avoided by the caller checking for an invariant. A POSIX signal will therefore generate a spurious wakeup.
Summary: If a Linux process is signaled its waiting threads will each enjoy a nice, hot spurious wakeup.
I buy it. That's a...
Why is the .bss segment required?
...The .bss segment is an optimization. The entire .bss segment is described by a single number, probably 4 bytes or 8 bytes, that gives its size in the running process, whereas the .data section is as big as the sum of sizes of the initialized variables. Thus, the .bss makes the executables smaller ...
Creating functions in a loop
...hen called after the end of the loop, i will be set to 2).
Easily fixed by forcing early binding: change def f(): to def f(i=i): like this:
def f(i=i):
return i
Default values (the right-hand i in i=i is a default value for argument name i, which is the left-hand i in i=i) are looked up at...