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Why can't static methods be abstract in Java?
... languages do support static inheritance, just like instance inheritance. From a syntax perspective, those languages usually require the class name to be included in the statement. For example, in Java, assuming you are writing code in ClassA, these are equivalent statements (if methodA() is a sta...
How do I test if a variable is a number in Bash?
...rne shell, and has built-in support for glob-style wildcards. If you come from another programming language, it looks eerie, but it's much more elegant than coping with the brittleness of various quoting issues and endless backwards/sideways compatibility problems with if test ...
...
Initialising mock objects - MockIto
...ner or the MockitoAnnotations.initMocks are strictly equivalent solutions. From the javadoc of the MockitoJUnitRunner :
JUnit 4.5 runner initializes mocks annotated with Mock, so that explicit usage of MockitoAnnotations.initMocks(Object) is not necessary. Mocks are initialized before each test met...
ReactJS: Modeling Bi-Directional Infinite Scrolling
...not prudent to load them all into the browser, so I am doing async fetches from time to time. For some reason, on occasion when I scroll and position jumps very far (say I go off the screen and back), the ListBody doesn't re-render, even though the state changes. Any ideas why this might be? Great e...
How to vertically align text inside a flexbox?
...e box. This makes it an anonymous inline element and child of the parent.
From the CSS spec:
9.2.2.1 Anonymous inline
boxes
Any text that is directly contained inside a block container element
must be treated as an anonymous inline element.
The flexbox specification provides for simi...
How can I round up the time to the nearest X minutes?
...
Example:
var dt1 = RoundUp(DateTime.Parse("2011-08-11 16:59"), TimeSpan.FromMinutes(15));
// dt1 == {11/08/2011 17:00:00}
var dt2 = RoundUp(DateTime.Parse("2011-08-11 17:00"), TimeSpan.FromMinutes(15));
// dt2 == {11/08/2011 17:00:00}
var dt3 = RoundUp(DateTime.Parse("2011-08-11 17:01"), TimeSp...
IntelliJ Split Window Navigation
... window (horizontal or vertical) into N tab groups, how do I switch/toggle from one tab group to another via the keyboard? If all of the tabs are in the same group you can switch from each tab easily (CTRL + right/left arrow), but when they're in separate tab groups I can't. I've searched through ...
How to respond with HTTP 400 error in a Spring MVC @ResponseBody method returning String?
...ption: Could not find acceptable representation Is there something missing from the answer?
– Jonik
Apr 27 '13 at 8:52
...
How to colorize diff on the command line?
...
Man pages for diff suggest no solution for colorization from within itself. Please consider using colordiff. It's a wrapper around diff that produces the same output as diff, except that it augments the output using colored syntax highlighting to increase readability:
diff old ne...
How to find the type of an object in Go?
...
To get a string representation:
From http://golang.org/pkg/fmt/
%T a Go-syntax representation of the type of the value
package main
import "fmt"
func main(){
types := []interface{} {"a",6,6.0,true}
for _,v := range types{
fmt.Printf...