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What is a domain specific language? Anybody using it? And in what way?
...s a scripting language that runs in a JVM. It's basically intended to be a Java answer to Ruby. It's a general purpose language but it can be used to write DSLs. docs.groovy-lang.org/docs/latest/html/documentation/…
– Charlie Martin
Jul 27 '15 at 13:10
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How to hide the title bar for an Activity in XML with existing custom theme
...t immediately obvious to me. 08-13 12:47:33.561 E/AndroidRuntime( 9125): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myapp/com.myapp.SplashActivity}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content
– mobib...
What are the recommendations for html tag?
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The <base> tag mainly eases creating relative links in templating languages as you don't need to worry about the current context in every link.
You can do for example
<base href="${host}/${context}/${language}/">
...
<link rel="stylesheet" href="css/style.css" />
<script sr...
Hidden features of Scala
...h scalac -Xprint:typer outputs:
package <empty> {
class A extends java.lang.Object with ScalaObject {
def this(): A = {
A.super.this();
()
};
scala.this.Predef.augmentString("xx").r
}
}
Notice scala.this.Predef.augmentString("xx").r, which is a the application of...
How to detect UI thread on Android?
.../developer.android.com/reference/android/app/Activity.html#runOnUiThread%28java.lang.Runnable%29
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What is the purpose of “!” and “?” at the end of method names?
...ware, this isn't always the case. For example, Ruby Array#concat docs.ruby-lang.org/en/2.0.0/Array.html#method-i-concat. Where you can get burnt badly is something like MyActiveRecordModel.column_names.concat(...). Instead you must clone it before doing the concat.
– wintondesh...
Is there a better way to write this null check, and a non-empty check, in groovy?
...s since Groovy 1.8.1 http://docs.groovy-lang.org/docs/next/html/groovy-jdk/java/util/Collection.html#find(). Examples:
def lst1 = []
assert !lst1.find()
def lst2 = [null]
assert !lst2.find()
def lst3 = [null,2,null]
assert lst3.find()
def lst4 = [null,null,null]
assert !lst4.find()
def lst5 = [...
Get the IP address of the machine
...t addr:([\d.]+)/'
#include <stdlib.h>
int main() {
setenv("LANG","C",1);
FILE * fp = popen("ifconfig", "r");
if (fp) {
char *p=NULL, *e; size_t n;
while ((getline(&p, &n, fp) > 0) && p) {
if (p = st...
How to run Maven from another directory (without cd to project dir)?
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java.lang.IllegalArgumentException: Parameter 'directory' is not a directory
– Damir Olejar
May 7 '17 at 15:22
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How to remove auto focus/keyboard popup of a field when the screen shows up?
...dited May 24 '12 at 10:34
Peter Lang
49.3k2626 gold badges138138 silver badges152152 bronze badges
answered May 24 '12 at 10:05
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