How to install or upgrade iOS 8

Here is the Cnet.com  described on own article, How to easy to install or update ios 8 in you iphone, ipad.

Method 1: Over-the-air update

If you are on a Wi-Fi network, you can upgrade to iOS 8 right from your device itself. No need for a computer or iTunes. Go to Settings > General > Software Update and click the Download and Install button for iOS 8.

Screenshot by Matt Elliott/CNET

After tapping the Download and Install button, you'll need to tap to agree to Apple's terms and conditions and then wait as your phone slowly downloads the file.
Once you have successfully downloaded the file, which was 1.1GB for my 32GB iPhone 5S (though my iPhone told me I needed to have a whopping 5.8GB of free space in order to proceed), you'll be greeted by an Install Now button. After the update installs and your device restarts, you can slide to set up iOS 8. You'll need to click through the following setup screens:

Screenshot by Matt Elliott/CNET

Screenshot by Matt Elliott/CNET

Screenshot by Matt Elliott/CNET

Screenshot by Matt Elliott/CNET

Method 2: Via iTunes

If you are near your computer with iTunes, it might be faster to update this way. In my experience, updating my iPad Air via iTunes was faster than updating my iPhone 5S over the air. The first order of business is to update iTunes to version 11.4. Open iTunes and then click iTunes > Check for Updates to install the latest version.
Once iTunes is up-to-date, connect your iOS device. Click on your device in the upper-right corner of iTunes and then click the Update button.

Screenshot by Matt Elliott/CNET

A pop-up window will appear, alerting you that a new iOS version is available for your device. Click the Download and Update button. (Or, if you are going to need your phone in the near future, opt for the Download Only button to download it now and install later. iOS 8 is a 1.1GB download and took the better part of an hour to download and install via iTunes.)

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Convert UTF-8 encoded NSData to NSString in ios

UTF-8 encoded NSData from windows server and I want to convert it to NSString for iPhone. Since data contains characters (like a degree symbol) which have different values on both platforms,  convert data to string following way.




If the data is not null-terminated, you should use -initWithData:encoding:

NSString* newStr = [[NSString alloc] initWithData:theData encoding:NSUTF8StringEncoding];

If the data is null-terminated, you should instead use -stringWithUTF8String: to avoid the extra \0 at the end.

NSString* newStr = [NSString stringWithUTF8String:[theData bytes]];

if you are doing this, remember this: using "stringWithUTF8String:" on a string that is not null-terminated, the result is unpredictable.

or simple call this for this

+(id)stringWithUTF8String:(const char *)bytes.

Happy Coding !!!

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How do you get a timestamp in programming language?

Get time timestamp in Java:
first import the file
import java.sql.Timestamp;
          import java.util.Date;

and, then just defined following code

         java.util.Date date= new java.util.Date();
      System.out.println(new Timestamp(date.getTime()));

Get timestamp in Java script:

the following returns the number of milliseconds since the epoch.

     new Date().getTime();

Or on browsers that support ES5 (notably not IE8 and earlier), you can use Date.now:

      Date.now();

which is really easily shimmed for older browsers:

      if (!Date.now) {
        Date.now = function() { return new Date().getTime(); };
    }

Get timestamp in IOS:


NSString * timestamp = [NSString stringWithFormat:@"%f",[[NSDate date] timeIntervalSince1970] * 1000];

(times 1000 for milliseconds, otherwise, take that out)

If You're using it all the time, it might be nice to declare a macro

#define TimeStamp [NSString stringWithFormat:@"%f",[[NSDate date] timeIntervalSince1970] * 1000]

Then Call it like this:

NSString * timestamp = TimeStamp;

Or as a method:

- (NSString *) timeStamp {
    return [NSString stringWithFormat:@"%f",[[NSDate date] timeIntervalSince1970] * 1000];
}



Get timestamp in PHP:

here is the function get timestamp in php:

<?php
$t=time();
echo($t . "<br>");
echo(date("Y-m-d",$t));
?>


Get timestamp in C#:

Function that creates a timestamp in c#

public static String GetTimestamp(this DateTime value)
{
    return value.ToString("yyyyMMddHHmmssffff");
}

Get timestamp in Python:

here is the simple way to get time in python;

Python 2.7.3 (default, Apr 24 2012, 00:00:54) 
[GCC 4.7.0 20120414 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import time
>>> ts = time.time()
>>> print ts
1355563265.81
>>> import datetime
>>> st = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')
>>> print st
2012-12-15 01:21:05
>>>

Get timestamp in Perl:

getting time in perl for this way:


If you want to control the format of the timestamp, I usually throw in a subroutine like the following. This will return a scalar in the format of "20120928 08:35:12".

sub getCurrentTime {

    my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);
    my $nice_timestamp = sprintf ( "%04d%02d%02d %02d:%02d:%02d",
                                   $year+1900,$mon+1,$mday,$hour,$min,$sec);
    return $nice_timestamp;
}

Then change your code to:

my $timestamp = getCurrentTime ();



Happy Coding!!!

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