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How to tell if a string is not defined in a Bash shell script
...not, you can do the following:
isdefined=0
${mystr+ export isdefined=1}
now, if isdefined=0 then the variable was undefined, if isdefined=1 the variable was defined
This way of checking variables is better than the above answer because it is more elegant, readable, and if your bash shell was con...
Why are empty catch blocks a bad idea? [closed]
...ng to do, but often it's a sign that a developer saw an exception, didn't know what to do about it, and so used an empty catch to silence the problem.
It's the programming equivalent of putting black tape over an engine warning light.
I believe that how you deal with exceptions depends on what l...
Retrieving the inherited attribute names/values using Java Reflection
I've a Java object 'ChildObj' which is extended from 'ParentObj'. Now, if it is possible to retrieve all the attribute names and values of ChildObj, including the inherited attributes too, using Java reflection mechanism?
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How do I get IntelliJ IDEA to display directories?
... and decided to post a more clear answer, in case it helps anyone else. I know an answer like this would have saved me 5 minutes of fumbling around.
Problem
Some folders are excluded, by default. In most cases, this is exactly what you want. Other times, you need to see your "build" or "target" fo...
Render partial from different folder (not shared)
...l.ControllerContextRegion("Foo")) {
// Html.Action, Html.Partial, etc. now looks things up as though
// FooController was our controller.
}
There may be unwanted side effects for this if your code requires the controller route component to not change, but in our code so far, there doesn't ...
Is there a Java standard “both null or equal” static method?
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With Java 7 you can now directly do a null safe equals:
Objects.equals(x, y)
(The Jakarta Commons library ObjectUtils.equals() has become obsolete with Java 7)
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How do you simulate Mouse Click in C#?
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@Jez - Handy to know, thanks. Not seen any issues yet myself, but now I at least know some exist ;0)
– Rusty Nail
Oct 22 '18 at 1:05
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EXC_BAD_ACCESS signal received
...you no longer have access to, and you therefore cannot call it.
UPDATE:
I now use Instruments to debug Leaks. From Xcode 4.2, choose Product->Profile and when Instruments launches, choose "Zombies".
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How to crop circular area from bitmap in Android
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Thanks. your code works spectacular. Now I can also crop using path (Polygon).
– DearDhruv
Sep 21 '13 at 8:58
2
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Margin on child element moves parent element
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i wanna know why does this happen what good this does to anyone. What situation this 'feature' was meant to be.
– Muhammad Umer
Mar 14 '13 at 14:47
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