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TypeError: 'NoneType' object is not iterable in Python
...ier on, and pukes up a bunch of unrelated nonsense all over the carpet.
Java or C++ doesn't have these problems because such a program wouldn't be allowed to compile since you haven't defined what to do when None occurs. Python gives the programmer lots of rope to hang himself by allowing you to...
ImageView in circular through xml
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yes, using XML, because using java code is very expensive to the mobile. With this code it only appears a circle behind my image, not the image itself being a circle. I presume is for the border, I want the image to me rounded in a circle within this one
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What is difference between functional and imperative programming languages?
...ct-oriented programming (OOP) languages such as C#, Visual Basic, C++, and Java were designed to primarily support imperative (procedural) programming, whereas Haskell/gofer like languages are purely functional. Can anybody elaborate on what is the difference between these two ways of programming?
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How to delete an SMS from the inbox in Android programmatically?
... When trying the delete on sms/inbox/ or sms/all/, you will probably get:
java.lang.IllegalArgumentException: Unknown URL
at com.android.providers.telephony.SmsProvider.delete(SmsProvider.java:510)
at android.content.ContentProvider$Transport.delete(ContentProvider.java:149)
at android....
What are all the uses of an underscore in Scala?
...atch { case C(vs @ _*) => vs.foreach(f(_)) }
Wildcard imports
import java.util._
Hiding imports
import java.util.{ArrayList => _, _}
Joining letters to operators
def bang_!(x: Int) = 5
Assignment operators
def foo_=(x: Int) { ... }
Placeholder syntax
List(1, 2, 3) map (_ + 2)
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recursion versus iteration
...d the n th triangular number:
Using an iterative algorithm:
//Triangular.java
import java.util.*;
class Triangular {
public static int iterativeTriangular(int n) {
int sum = 0;
for (int i = 1; i <= n; i ++)
sum += i;
return sum;
}
public static void main(Stri...
When should null values of Boolean be used?
Java boolean allows values of true and false while Boolean allows true , false , and null . I have started to convert my boolean s to Boolean s. This can cause crashes in tests such as
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Eclipse jump to closing brace
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For me this only works with JAVA. When I edit javascript code inside an JSP file, it doesn't work.
– John Henckel
Feb 22 '16 at 16:46
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Clearing coverage highlighting in Eclipse
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For Clover you can hide the colors in the java editor by going to "Clover | Coverage Explorer" -> Coverage in Editors > Show None. Hides all red/green coverage areas in open Java editors.
– Vineet Bhatia
Dec 5 '14 at 14:21...
Android Quick Actions UI Pattern
...nk that's done in "Contacts/src/com/android/contacts/ui/QuickContactWindow.java", but I am not completely sure.
I you google for QuickContact android, there are a lot of images that show exactly the kind of menu that you want, so it seems likely that it is indeed called QuickContact in that context...