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In Intellij, how do I toggle between camel case and underscore spaced?
At my company we have two different style guides for java vs sql. In java I have a field named historyOfPresentIllness and when i write the sql, I want to name it history_of_present_illness . Is there a keyboard shortcut to switch from one to the other when I have the phrase highlighted? Or pe...
Why is Lisp used for AI? [closed]
...d implementations of successful research is usually in C or C++ (sometimes Java).
If you're curious about the 70's...well, I wasn't there. But I think Lisp was successful in AI research for three reasons (in order of importance):
Lisp is an excellent prototyping tool. It was the best for a very l...
Private properties in JavaScript ES6 classes
...
To expand on @loganfsmyth's answer:
The only truly private data in JavaScript is still scoped variables. You can't have private properties in the sense of properties accessed internally the same way as public properties, but you can use scoped variables to store private data.
Scoped variabl...
Sharing Test code in Maven
...jar containing test classes".
This creates jar file of code from src/test/java using the jar plugin so that modules with tests can share code.
<project>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactI...
BigDecimal - to use new or valueOf
... but it's a lot less intuitive.
There's a nice explanation of this in the JavaDoc:
The results of this constructor can be somewhat unpredictable. One might assume that writing new BigDecimal(0.1) in Java creates a BigDecimal which is exactly equal to 0.1 (an unscaled value of 1, with a scale of...
What is the result of % in Python?
...ain why -11 % 5 = 4 - dahiya_boy
This is weird, right? If you try this in JavaScript:
> -11 % 5
-1
This is because in JavaScript % is the "remainder" operator while in Python it is the "modulus" (clock math) operator.
You can get the explanation directly from GvR:
Edit - dahiya_boy
In Java a...
Should switch statements always contain a default clause?
...
This is an important observation! It applies even more in Java because it doesn't allow you to cast ints to enums.
– Lii
Sep 21 '15 at 7:42
...
How can I convert immutable.Map to mutable.Map in Scala?
...p(1 -> "one", 2 -> "two")
//iMap: scala.collection.immutable.Map[Int,java.lang.String] = Map((1,one), (2,two))
scala> val mMap = new HashMap[Int,String] {
| override def default(key: Int): String = iMap(key)
| }
//mMap: scala.collection.mutable.HashMap[Int,String] = Map()
...
The apk must be signed with the same certificates as the previous version
...nal APK and update APK were signed with by using these commands, using the Java keytool:
keytool -list -printcert -jarfile original.apk
keytool -list -printcert -jarfile update.apk
This shows you detailed information about the how an APK was signed, for example:
Owner: CN=My App, O=My Company,...
Math.random() versus Random.nextInt(int)
...s : time:328 milesecond.
usingMathsRandom : time:187 milesecond.
package javaFuction;
import java.util.Random;
public class RandomFuction
{
static int array[] = new int[9999];
static long sum = 0;
public static void usingMathsRandom() {
for (int i = 0; i < 9999; i++) {
...