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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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Best practice for instantiating a new Android Fragment
...o documented in the android developer reference: https://developer.android.com/reference/android/app/Fragment.html
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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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Python 3.x rounding behavior
...proach eliminates this issue.
There is more than one method of rounding in common use. IEEE 754, the international standard for floating-point math, defines five different rounding methods (the one used by Python 3.0 is the default). And there are others.
This behavior is not as widely known as it o...
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...
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...