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C++ cout hex values?
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edited Jan 8 '17 at 18:36
answered Jan 26 '09 at 10:39
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How to detect first time app launch on an iPhone
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- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if (![[NSUserDefaults standardUserDefaults] boolForKey:@"HasLaunchedOnce"])
{
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"HasLaunchedOnce"];
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Linux command (like cat) to read a specified quantity of characters
Is there a command like cat in linux which can return a specified quantity of characters from a file?
9 Answers
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Facebook access token server-side validation for iPhone app
I'm developing iPhone application, that is based on communication with server, and I want to use Facebook authentication mechanisms.
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How can I convert ArrayList to ArrayList?
...ce this is actually not a list of strings, the easiest way is to loop over it and convert each item into a new list of strings yourself:
List<String> strings = list.stream()
.map(object -> Objects.toString(object, null))
.collect(Collectors.toList());
Or when you're not on Java 8 y...
How exactly does a generator comprehension work?
What does generator comprehension do? How does it work? I couldn't find a tutorial about it.
6 Answers
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Delete duplicate rows from small table
...e a table in a PostgreSQL 8.3.8 database, which has no keys/constraints on it, and has multiple rows with exactly the same values.
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Use CSS to automatically add 'required field' asterisk to form inputs
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edited Dec 20 '19 at 2:25
abranhe
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Extreme wait-time when taking a SQL Server database offline
...mely slowly - on the order of 30 minutes plus now. I am just about at my wits end and I can't seem to find any references online as to what might be causing the speed problem, or how to fix it.
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How to get last inserted row ID from WordPress database?
My WordPress plugin has a table with a AUTO_INCREMENT primary key field called ID. When a new row is inserted into the table, I'd like to get the ID value of the insertion.
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