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Difference between case object and object
...ar classes in that they get:
pattern matching support
default implementations of equals and hashCode
default implementations of serialization
a prettier default implementation of toString, and
the small amount of functionality that they get from automatically inheriting from scala.Product.
Pa...
How to serialize an object into a string
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Sergio:
You should use BLOB. It is pretty straighforward with JDBC.
The problem with the second code you posted is the encoding. You should additionally encode the bytes to make sure none of them fails.
If you still want to ...
C++ preprocessor __VA_ARGS__ number of arguments
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I usually use this macro to find a number of params:
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
Full example:
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/size...
Open an IO stream from a local file or url
... contains either a path to a local file or a url and open it as a readable IO stream.
1 Answer
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What is the difference between Pan and Swipe in iOS?
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By definition, a swipe gesture is necessarily also a pan gesture -- both involve translational movement of touch points. The difference is in the recognizer semantics: a pan recognizer looks for the beginning of translational movement ...
change text of button and disable button in iOS
How do you change the text of the button and disable a button in iOS?
8 Answers
8
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Comparing strings with == which are declared final in Java
I have a simple question about strings in Java. The following segment of simple code just concatenates two strings and then compares them with == .
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How to pass object with NSNotificationCenter
... @Kairos because it isn't designed to use like this. the object param in postNotificationName should meaning the one which send this notification.
– xi.lin
Jul 9 '15 at 3:49
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What are the uses of “using” in C#?
User kokos answered the wonderful Hidden Features of C# question by mentioning the using keyword. Can you elaborate on that? What are the uses of using ?
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How to develop or migrate apps for iPhone 5 screen resolution?
The new iPhone 5 display has a new aspect ratio and a new resolution (640 x 1136 pixels).
30 Answers
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