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Main differences between SOAP and RESTful web services in Java [duplicate]
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REST is almost always going to be faster. The main advantage of SOAP is that it provides a mechanism for services to describe themselves to clients, and to advertise their existence.
REST is much more lightweight and can be im...
What's the best way to detect a 'touch screen' device using JavaScript?
...-in that's for use on both desktop and mobile devices. I wondered if there is a way with JavaScript to detect if the device has touch screen capability. I'm using jquery-mobile.js to detect the touch screen events and it works on iOS, Android etc., but I'd also like to write conditional statements b...
How to check that a string is a palindrome using regular expressions?
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The answer to this question is that "it is impossible". More specifically, the interviewer is wondering if you paid attention in your computational theory class.
In your computational theory class you learned about finite state machines. A ...
What are bitwise operators?
... it in either an academic or professional setting, so stuff like these bitwise operators really escapes me.
9 Answers
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What is the difference between user and kernel modes in operating systems?
...cute any CPU instruction and
reference any memory address. Kernel
mode is generally reserved for the
lowest-level, most trusted functions
of the operating system. Crashes in
kernel mode are catastrophic; they
will halt the entire PC.
User Mode
In User mode, the executing code has ...
Google Guava isNullOrEmpty for collections
I see that Guava has isNullOrEmpty utility method for Strings
7 Answers
7
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How to check if a view controller is presented modally or pushed on a navigation stack?
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Take with a grain of salt, didn't test.
- (BOOL)isModal {
if([self presentingViewController])
return YES;
if([[[self navigationController] presentingViewController] presentedViewController] == [self navigationController])
return YES;
if([[[...
Why should I avoid using Properties in C#?
In his excellent book, CLR Via C#, Jeffrey Richter said that he doesn't like properties, and recommends not to use them. He gave some reason, but I don't really understand. Can anyone explain to me why I should or should not use properties?
In C# 3.0, with automatic properties, does this change?
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PSQLException: current transaction is aborted, commands ignored until end of transaction block
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I got this error using Java and PostgreSQL doing an insert on a table. I will illustrate how you can reproduce this error:
org.postgresql.util.PSQLException: ERROR:
current transaction is aborted, commands ignored until end of tran...
Pointers in C: when to use the ampersand and the asterisk?
...be used in front of a pointer variable to get the value of the object that is pointed to by the pointer. But things work differently when you're working with arrays, strings or when you're calling functions with a pointer copy of a variable. It's difficult to see a pattern of logic inside all of thi...