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“ArrayAdapter requires the resource ID to be a TextView” xml problems
...nt to display the information from this.file = fileop.ReadFileAsList("Installed_packages.txt"); . My code:
3 Answers
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How to get the contents of a webpage in a shell variable?
...get google.com -q -O -)
echo $content
We use the -O option of wget which allows us to specify the name of the file into which wget dumps the page contents. We specify - to get the dump onto standard output and collect that into the variable content. You can add the -q quiet option to turn off's wg...
java: Class.isInstance vs Class.isAssignableFrom
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Both answers are in the ballpark but neither is a complete answer.
MyClass.class.isInstance(obj) is for checking an instance. It returns true when the parameter obj is non-null and can be cast to MyClass without raising a ClassCastException. In ot...
How do I increase the number of displayed lines of a Java stack trace dump?
...stack trace will be shortened. If you for some reason want the full trace, all you need to do is take the last line before the ... in Foo's stack trace and look for it in the Bar's stack trace; everything below that line is exactly what would have been printed in Foo's stack trace.
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How can I explode and trim whitespace?
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This is also looping (internally) by PHP
– Jason OOO
Oct 13 '13 at 15:47
2
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Heroku/devise - Missing host to link to! Please provide :host parameter or set default_url_options[:
...n't have the sendgrid addon and my smtp hasn't configured. Many thanks for all your backup!
– benoitr
Nov 7 '10 at 16:13
1
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Multiple Type Constraints in Swift
...se a where clause which lets you specify as many requirements as you want (all of which must be fulfilled) separated by commas
Swift 2:
func someFunc<T where T:SomeProtocol, T:SomeOtherProtocol>(arg: T) {
// stuff
}
Swift 3 & 4:
func someFunc<T: SomeProtocol & SomeOtherProt...
How to turn on line numbers in IDLE?
...t window, go to Options and click Show Line Numbers.
To show them automatically, go to Options > Configure IDLE > General and check the Show line numbers in new windows box.
Version 3.7 or older:
Unfortunately there is not an option to display line numbers in IDLE although there is an enhancem...
DateTime.Now vs. DateTime.UtcNow
...f how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
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WPF Data Binding and Validation Rules Best Practices
I have a very simple WPF application in which I am using data binding to allow editing of some custom CLR objects. I am now wanting to put some input validation in when the user clicks save. However, all the WPF books I have read don't really devote any space to this issue. I see that you can create...