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Expansion of variables inside single quotes in a command in Bash
I want to run a command from a bash script which has single quotes and some other commands inside the single quotes and a variable.
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How to use base class's constructors and assignment operator in C++?
I have a class B with a set of constructors and an assignment operator.
5 Answers
5
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When to use a Content Provider
I understand that Content Providers are made to allow publicly sharing data between applications. However, I'm wondering if anyone has thoughts about making a Content Provider to use just within your own app. Would there be any advantages to doing this? Any disadvantages?
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GitHub authentication failing over https, returning wrong email address
Initiating a push or any other action with GitHub from the command line (over https, not ssh) that calls for the username and password not only fails but, when it does, it returns
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Immutable vs Mutable types
... changing what the variable refers to. A mutable type can change that way, and it can also change "in place".
Here is the difference.
x = something # immutable type
print x
func(x)
print x # prints the same thing
x = something # mutable type
print x
func(x)
print x # might print something differe...
Jump to function definition in vim
...vim? For example with Visual Assist, I can type Alt + g under a function and it opens a context menu listing the files with definitions.
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Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?
...ity between systems with different screen resolution.)
Some (incomplete, and unfortunately the links are broken due to migration of SwingLabs to java.net) technical reasons are for instance mentioned in the Rules (hehe) or in the link @bendicott found in his/her comment to my answer. Socially, pos...
Can overridden methods differ in return type?
...is return-type-substitutable for another method d2 with return type R2, if and only if the following conditions hold:
If R1 is void then R2 is void.
If R1 is a primitive type, then R2 is identical to R1.
If R1 is a reference type then:
R1 is either a subtype of R2 or R1 can be co...
Newline in string attribute
... can use 

By the way, note the syntax: It's the ampersand, a pound, the letter x, then the hex value of the character you want, and then finally a semi-colon.
ALSO: For completeness, you can bind to a text that already has the line feeds embedded in it like a constant in your c...
How to unit test an object with database queries
I've heard that unit testing is "totally awesome", "really cool" and "all manner of good things" but 70% or more of my files involve database access (some read and some write) and I'm not sure how to write a unit test for these files.
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