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The Use of Multiple JFrames: Good or Bad Practice? [closed]
...nt of that dialog - choose/fix/cancel this, then proceed. Multiple frames do not.
A dialog (or floating tool-bar) with a parent will come to front when the parent is clicked on - you'd have to implement that in frames if that was the desired behavior.
There are any number of ways of displaying...
Why would you use Expression rather than Func?
... lambda expression. This tree structure describes what a lambda expression does rather than doing the actual thing. It basically holds data about the composition of expressions, variables, method calls, ... (for example it holds information such as this lambda is some constant + some parameter). You...
How do you do a ‘Pause’ with PowerShell 2.0?
...e the "Press any key to continue..." message, remove the pipe. Also, this doesn't seem to work in PowerShell ISE. The process simply gets stuck, and you can't press any key. Any way around that?
– Wouter
Oct 19 '12 at 9:41
...
How can two strings be concatenated?
...paste()
is the way to go. As the previous posters pointed out, paste can do two things:
concatenate values into one "string", e.g.
> paste("Hello", "world", sep=" ")
[1] "Hello world"
where the argument sep specifies the character(s) to be used between the arguments to concatenate,
or colla...
Initializing multiple variables to the same value in Java
...ree;
one = two = three = "";
This should work with immutable objects. It doesn't make any sense for mutable objects for example:
Person firstPerson, secondPerson, thirdPerson;
firstPerson = secondPerson = thirdPerson = new Person();
All the variables would be pointing to the same instance. Prob...
How do I convert a Django QuerySet into list of dicts?
...
this doesn't actually return a list though
– astreltsov
Jan 25 '17 at 3:26
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Is there a way to get a collection of all the Models in your Rails app?
...swers than this one! Or try to improve this one as community wiki.
Models do not register themselves to a master object, so no, Rails does not have the list of models.
But you could still look in the content of the models directory of your application...
Dir.foreach("#{RAILS_ROOT}/app/models") do...
Can't specify the 'async' modifier on the 'Main' method of a console app
...ations (the method returns off the thread but keeps the request alive). It doesn't work out so well for Console programs: Main returns to the OS - so your program exits.
One solution is to provide your own context - a "main loop" for your console program that is async-compatible.
If you have a mach...
How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
...ve arrived at a breakpoint or used Debug > Break All, use Debug > Windows > Modules. You'll see a list of all the assemblies that are loaded into the process. Locate the one you want to get debug info for. Right-click it and select Symbol Load Information. You'll get a dialog that lists...
How do I make a checkbox required on an ASP.NET form?
I've done some searching on this, and I've found several partial answers, however nothing that gives me that warm fuzzy "this is the right way to do this". To answer the most frequently occurring complaint against this question: "checkboxes can have two legitimate states - checked and unchecked", th...