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Difference between events and delegates and its respective applications [closed]
...Pattern. For example, if I want to sort a List of objects, I can provide a Comparator strategy to the method to tell the implementation how to compare two objects.
I have used the two methods in production code. Tons of my data objects notify when certain properties are met. Most basic example, whe...
GNU Makefile rule generating a few targets from a single source file
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@bobbogo either that, or add touch file-a.out as a second command after the foo-bin invocation.
– Connor Harris
Apr 19 '17 at 12:48
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How to calculate “time ago” in Java?
....println(p.format(new Date()));
// prints "à l'instant"
As noted in the comments, Android has this functionality built into the android.text.format.DateUtils class.
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How to make child process die after parent exits?
...t might have died already. Race condition. Correct solution: stackoverflow.com/a/17589555/412080
– Maxim Egorushkin
Dec 22 '15 at 17:49
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When should we use Observer and Observable?
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When should an IllegalArgumentException be thrown?
...d in the JDK libraries, I would say:
It seems like a defensive measure to complain about obviously bad input before the input can get into the works and cause something to fail halfway through with a nonsensical error message.
It's used for cases where it would be too annoying to throw a checked e...
What is the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
...need to have factory of IFruitFactory. And as I already mentioned, this is completely incorrect, and is just a result of the confusion about patterns. My answer below clarifies - there is Abstract Factory pattern, then there is Factory Method pattern, and then there are confused people who think Abs...
How to bind to a PasswordBox in MVVM
I have come across a problem with binding to a PasswordBox . It seems it's a security risk but I am using the MVVM pattern so I wish to bypass this. I found some interesting code here (has anyone used this or something similar?)
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Passing enum or object through an intent (the best solution)
... use of extension functions and reified types (which retains the type when compiling).
inline fun <reified T : Enum<T>> Intent.putExtra(victim: T): Intent =
putExtra(T::class.java.name, victim.ordinal)
inline fun <reified T: Enum<T>> Intent.getEnumExtra(): T? =
getI...