Since no one mentioned I am adding on it, When you pass a object to a function in c++ the default copy constructor of the object is called if you dont have one which creates a clone of the object and then pass it to the method, so when you change the object values that will reflect on the copy of the object instead of the original object, that is the problem in c++, So if you make all the class attributes to be pointers, then the copy constructors will copy the addresses of the pointer attributes , so when the method invocations on the object which manipulates the values stored in pointer attributes addresses, the changes also reflect in the original object which is passed as a parameter, so this can behave same a Java but dont forget that all your class attributes must be pointers, also you should change the values of pointers, will be much clear with code explanation.

Class CPlusPlusJavaFunctionality {
    public:
       CPlusPlusJavaFunctionality(){
         attribute = new int;
         *attribute = value;
       }

       void setValue(int value){
           *attribute = value;
       }

       void getValue(){
          return *attribute;
       }

       ~ CPlusPlusJavaFuncitonality(){
          delete(attribute);
       }

    private:
       int *attribute;
}

void changeObjectAttribute(CPlusPlusJavaFunctionality obj, int value){
   int* prt = obj.attribute;
   *ptr = value;
}

int main(){

   CPlusPlusJavaFunctionality obj;

   obj.setValue(10);

   cout<< obj.getValue();  //output: 10

   changeObjectAttribute(obj, 15);

   cout<< obj.getValue();  //output: 15
}

But this is not good idea as you will be ending up writing lot of code involving with pointers, which are prone for memory leaks and do not forget to call destructors. And to avoid this c++ have copy constructors where you will create new memory when the objects containing pointers are passed to function arguments which will stop manipulating other objects data, Java does pass by value and value is reference, so it do not require copy constructors.

        public static List<string> DevideByStringLength(string text, int chunkSize)
    {
        double a = (double)text.Length / chunkSize;
        var numberOfChunks = Math.Ceiling(a);

        Console.WriteLine($"{text.Length} | {numberOfChunks}");

        List<string> chunkList = new List<string>();
        for (int i = 0; i < numberOfChunks; i++)
        {
            string subString = string.Empty;
            if (i == (numberOfChunks - 1))
            {
                subString = text.Substring(chunkSize * i, text.Length - chunkSize * i);
                chunkList.Add(subString);
                continue;
            }
            subString = text.Substring(chunkSize * i, chunkSize);
            chunkList.Add(subString);
        }
        return chunkList;
    }

In the newer apache poi versions:

XSSFCellStyle style = workbook.createCellStyle();
style.setBorderTop(BorderStyle.MEDIUM);
style.setBorderBottom(BorderStyle.MEDIUM);
style.setBorderLeft(BorderStyle.MEDIUM);
style.setBorderRight(BorderStyle.MEDIUM);

you can do something like this

boolean found = false;

while ( resultSet.next() )
{
    found = true;
    resultSet.getString("column_name");
}

if (!found)
    System.out.println("No Data");

More modern syntax:

git diff ..master path/to/file

The double-dot prefix means "from the current working directory to". You can also say:

• master.., i.e. the reverse of above. This is the same as master.
• mybranch..master, explicitly referencing a state other than the current working tree.
• v2.0.1..master, i.e. referencing a tag.
• [refspec]..[refspec], basically anything identifiable as a code state to git.

You could pass an object as attribute and read it into the directive like this:

<div my-directive="{id:123,name:'teo',salary:1000,color:red}"></div>

app.directive('myDirective', function () {
    return {            
        link: function (scope, element, attrs) {
           //convert the attributes to object and get its properties
           var attributes = scope.$eval(attrs.myDirective);       
           console.log('id:'+attributes.id);
           console.log('id:'+attributes.name);
        }
    };
});

This may be a bit of a hack, but you can cast the .DayOfWeek property to an int (it's an enum and since its not had its underlying data type changed it defaults to int) and use that to determine the previous start of the week.

It appears the week specified in the DayOfWeek enum starts on Sunday, so if we subtract 1 from this value that'll be equal to how many days the Monday is before the current date. We also need to map the Sunday (0) to equal 7 so given 1 - 7 = -6 the Sunday will map to the previous Monday:-

DateTime now = DateTime.Now;
int dayOfWeek = (int)now.DayOfWeek;
dayOfWeek = dayOfWeek == 0 ? 7 : dayOfWeek;
DateTime startOfWeek = now.AddDays(1 - (int)now.DayOfWeek);

The code for the previous Sunday is simpler as we don't have to make this adjustment:-

DateTime now = DateTime.Now;
int dayOfWeek = (int)now.DayOfWeek;
DateTime startOfWeek = now.AddDays(-(int)now.DayOfWeek);

Have you tried from within SQL Server management studio with the GUI. Right click on the database, tasks, shrink, files. Select filetype=Log.

I worked for me a week ago.

You can do sizeof($Contents) or count($Contents)

also this

$count = 0;
foreach($Contents as $items) {
  $count++;
  $items[number];
}

Check this blog by Martin Thoma. I tested the below code on MacOS Mojave and it worked as specified.

> def get_browser():
>     """Get the browser (a "driver")."""
>     # find the path with 'which chromedriver'
>     path_to_chromedriver = ('/home/moose/GitHub/algorithms/scraping/'
>                             'venv/bin/chromedriver')
>     download_dir = "/home/moose/selenium-download/"
>     print("Is directory: {}".format(os.path.isdir(download_dir)))
> 
>     from selenium.webdriver.chrome.options import Options
>     chrome_options = Options()
>     chrome_options.add_experimental_option('prefs', {
>         "plugins.plugins_list": [{"enabled": False,
>                                   "name": "Chrome PDF Viewer"}],
>         "download": {
>             "prompt_for_download": False,
>             "default_directory": download_dir
>         }
>     })
> 
>     browser = webdriver.Chrome(path_to_chromedriver,
>                                chrome_options=chrome_options)
>     return browser

you can try this:"Filename.txt" file will be created automatically in the bin->debug folder everytime you run this code or you can specify path of the file like: @"C:/...". you can check ëxistance of "Hello" by going to the bin -->debug folder

P.S dont forget to add Console.Readline() after this code snippet else console will not appear.

TextWriter tw = new StreamWriter("filename.txt");
        String text = "Hello";
        tw.WriteLine(text);
        tw.Close();

        TextReader tr = new StreamReader("filename.txt");
        Console.WriteLine(tr.ReadLine());
        tr.Close();

You can still use the answer provided using Toolbar.inflateMenu even while using setSupportActionBar(toolbar).

I had a scenario where I had to move toolbar setup functionality into a separate class outside of activity which didn't by-itself know of the event onCreateOptionsMenu.

So, to implement this, all I had to do was wait for Toolbar to be drawn before calling inflateMenu by doing the following:

toolbar.post {
    toolbar.inflateMenu(R.menu.my_menu)
}

Might not be considered very clean but still gets the job done.

To lock the screen by code you have to use the actual rotation of the screen (0, 90, 180, 270) and you have to know the natural position of it, in a smartphone the natural position will be portrait and in a tablet, it will be landscape.

Here's the code (lock and unlock methods), it has been tested in some devices (smartphones and tablets) and it works great.

public static void lockScreenOrientation(Activity activity)
{   
    WindowManager windowManager =  (WindowManager) activity.getSystemService(Context.WINDOW_SERVICE);   
    Configuration configuration = activity.getResources().getConfiguration();   
    int rotation = windowManager.getDefaultDisplay().getRotation(); 

    // Search for the natural position of the device    
    if(configuration.orientation == Configuration.ORIENTATION_LANDSCAPE &&  
       (rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_180) ||  
       configuration.orientation == Configuration.ORIENTATION_PORTRAIT &&   
       (rotation == Surface.ROTATION_90 || rotation == Surface.ROTATION_270))   
    {   
        // Natural position is Landscape    
        switch (rotation)   
        {   
            case Surface.ROTATION_0:    
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);    
                break;      
            case Surface.ROTATION_90:   
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT); 
            break;      
            case Surface.ROTATION_180: 
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE); 
                break;          
            case Surface.ROTATION_270: 
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 
                break;
        }
    }
    else
    {
        // Natural position is Portrait
        switch (rotation) 
        {
            case Surface.ROTATION_0: 
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 
            break;   
            case Surface.ROTATION_90: 
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); 
            break;   
            case Surface.ROTATION_180: 
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT); 
                break;          
            case Surface.ROTATION_270: 
                activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE); 
                break;
        }
    }
}

public static void unlockScreenOrientation(Activity activity)
{
    activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
}

tl;dr

what is the way to retrieve a Date object so that its always in GMT?

Instant.now() 

Details

You are using troublesome confusing old date-time classes that are now supplanted by the java.time classes.

Instant = UTC

The Instant class represents a moment on the timeline in UTC with a resolution of nanoseconds (up to nine (9) digits of a decimal fraction).

Instant instant = Instant.now() ; // Current moment in UTC.

ISO 8601

To exchange this data as text, use the standard ISO 8601 formats exclusively. These formats are sensibly designed to be unambiguous, easy to process by machine, and easy to read across many cultures by people.

The java.time classes use the standard formats by default when parsing and generating strings.

String output = instant.toString() ;  

2017-01-23T12:34:56.123456789Z

Time zone

If you want to see that same moment as presented in the wall-clock time of a particular region, apply a ZoneId to get a ZonedDateTime.

Specify a proper time zone name in the format of continent/region, such as America/Montreal, Africa/Casablanca, or Pacific/Auckland. Never use the 3-4 letter abbreviation such as EST or IST as they are not true time zones, not standardized, and not even unique(!).

ZoneId z = ZoneId.of( "Asia/Singapore" ) ;
ZonedDateTime zdt = instant.atZone( z ) ;  // Same simultaneous moment, same point on the timeline.

See this code live at IdeOne.com.

Notice the eight hour difference, as the time zone of Asia/Singapore currently has an offset-from-UTC of +08:00. Same moment, different wall-clock time.

instant.toString(): 2017-01-23T12:34:56.123456789Z

zdt.toString(): 2017-01-23T20:34:56.123456789+08:00[Asia/Singapore]

Convert

Avoid the legacy java.util.Date class. But if you must, you can convert. Look to new methods added to the old classes.

java.util.Date date = Date.from( instant ) ;

…going the other way…

Instant instant = myJavaUtilDate.toInstant() ;

Date-only

For date-only, use LocalDate.

LocalDate ld = zdt.toLocalDate() ;

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • The ThreeTenABP project adapts ThreeTen-Backport (mentioned above) for Android specifically.
  • See How to use ThreeTenABP….

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

My preferred method has the advantage of no JavaScript embedded in your markup:

CSS

a {
  color: inherit;
  text-decoration: none;
}

HTML

<a href="http://example.com" target="_blank"><input type="button" value="Link-button"></a>

This works well and an angular way to focus input control

angular.element('#elementId').focus()

This is although not a pure angular way of doing the task yet the syntax follows angular style. Jquery plays role indirectly and directly access DOM using Angular (jQLite => JQuery Light).

If required, this code can easily be put inside a simple angular directive where element is directly accessible.

You can see SNS as a traditional topic which you can have multiple Subscribers. You can have heterogeneous subscribers for one given SNS topic, including Lambda and SQS, for example. You can also send SMS messages or even e-mails out of the box using SNS. One thing to consider in SNS is only one message (notification) is received at once, so you cannot take advantage from batching.

SQS, on the other hand, is nothing but a queue, where you store messages and subscribe one consumer (yes, you can have N consumers to one SQS queue, but it would get messy very quickly and way harder to manage considering all consumers would need to read the message at least once, so one is better off with SNS combined with SQS for this use case, where SNS would push notifications to N SQS queues and every queue would have one subscriber, only) to process these messages. As of Jun 28, 2018, AWS Supports Lambda Triggers for SQS, meaning you don't have to poll for messages any more.

Furthermore, you can configure a DLQ on your source SQS queue to send messages to in case of failure. In case of success, messages are automatically deleted (this is another great improvement), so you don't have to worry about the already processed messages being read again in case you forgot to delete them manually. I suggest taking a look at Lambda Retry Behaviour to better understand how it works.

One great benefit of using SQS is that it enables batch processing. Each batch can contain up to 10 messages, so if 100 messages arrive at once in your SQS queue, then 10 Lambda functions will spin up (considering the default auto-scaling behaviour for Lambda) and they'll process these 100 messages (keep in mind this is the happy path as in practice, a few more Lambda functions could spin up reading less than the 10 messages in the batch, but you get the idea). If you posted these same 100 messages to SNS, however, 100 Lambda functions would spin up, unnecessarily increasing costs and using up your Lambda concurrency.

However, if you are still running traditional servers (like EC2 instances), you will still need to poll for messages and manage them manually.

You also have FIFO SQS queues, which guarantee the delivery order of the messages. SQS FIFO is also supported as an event source for Lambda as of November 2019

Even though there's some overlap in their use cases, both SQS and SNS have their own spotlight.

Use SNS if:

• multiple subscribers is a requirement
• sending SMS/E-mail out of the box is handy

Use SQS if:

• only one subscriber is needed
• batching is important

To create frames from video:

ffmpeg\ffmpeg -i %video% test\thumb%04d.jpg -hide_banner

Optional: remove frames you don't want in output video
(more accurate than trimming video with -ss & -t)

Then create video from image/frames eg.:

ffmpeg\ffmpeg -framerate 30 -start_number 56 -i test\thumb%04d.jpg -vf format=yuv420p test/output.mp4

You have a pointer to a char. So as your system knows, on that memory address there is a char value on sizeof(char) space. When you cast it up to int*, you will work with data of sizeof(int), so you will print your char and some memory-garbage after it as an integer.

For swift 3 and 4, you can do this. Good practice is set name of Storyboard equal to StoryboardID.

enum StoryBoardName{
   case second = "SecondViewController"
}
extension UIStoryBoard{
   class func load(_ storyboard: StoryBoardName) -> UIViewController{
      return UIStoryboard(name: storyboard.rawValue, bundle: nil).instantiateViewController(withIdentifier: storyboard.rawValue)
   }
}

and then you can load your Storyboard in your ViewController like this:

class MyViewController: UIViewController{
     override func viewDidLoad() {
        super.viewDidLoad()
        guard let vc = UIStoryboard.load(.second) as? SecondViewController else {return}
        self.present(vc, animated: true, completion: nil)
     }

}

When you create a new Storyboard just set the same name on StoryboardID and add Storyboard name in your enum "StoryBoardName"

run command creates a container from the image and then starts the root process on this container. Running it with run --rm flag would save you the trouble of removing the useless dead container afterward and would allow you to ignore the existence of docker start and docker remove altogether.

run command does a few different things:

docker run --name dname image_name bash -c "whoami"

1. Creates a Container from the image. At this point container would have an id, might have a name if one is given, will show up in docker ps
2. Starts/executes the root process of the container. In the code above that would execute bash -c "whoami". If one runs docker run --name dname image_name without a command to execute container would go into stopped state immediately.
3. Once the root process is finished, the container is stopped. At this point, it is pretty much useless. One can not execute anything anymore or resurrect the container. There are basically 2 ways out of stopped state: remove the container or create a checkpoint (i.e. an image) out of stopped container to run something else. One has to run docker remove before launching container under the same name.

How to remove container once it is stopped automatically? Add an --rm flag to run command:

docker run --rm --name dname image_name bash -c "whoami"

How to execute multiple commands in a single container? By preventing that root process from dying. This can be done by running some useless command at start with --detached flag and then using "execute" to run actual commands:

docker run --rm -d --name dname image_name tail -f /dev/null
docker exec dname bash -c "whoami"
docker exec dname bash -c "echo 'Nnice'"

Why do we need docker stop then? To stop this lingering container that we launched in the previous snippet with the endless command tail -f /dev/null.

I found this neat piece of code in the book "Python For Data Analysis" by O'reily. It uses lazy implementation and int comparison and i presume it can be modified for other denominations using decimals. Let me know how it works for you!

def make_change(amount, coins=[1, 5, 10, 25], hand=None):_x000D_
 hand = [] if hand is None else hand_x000D_
 if amount == 0:_x000D_
 yield hand_x000D_
 for coin in coins:_x000D_
 # ensures we don't give too much change, and combinations are unique_x000D_
 if coin > amount or (len(hand) > 0 and hand[-1] < coin):_x000D_
 continue_x000D_
 for result in make_change(amount - coin, coins=coins,_x000D_
 hand=hand + [coin]):_x000D_
 yield result

I know it is a bit late to answer this question, but it is the first entry in google, so I think it is worth to answer it.

The problem is not a coding problem, it is an architecture problem.

You have created an interface class Event: public Item to define the methods which all events should implement. Then you have defined two types of events which inherits from class Event: public Item; Arrival and Landing and then, you have added a method Landing* createNewLanding(Arrival* arrival); from the landing functionality in the class Event: public Item interface. You should move this method to the class Landing: public Event class because it only has sense for a landing. class Landing: public Event and class Arrival: public Event class should know class Event: public Item but event should not know class Landing: public Event nor class Arrival: public Event.

I hope this helps, regards, Alberto

Replacing all AppSettings

This is the overkill case where you just want to replace an entire section of the web.config. In this case I will replace all AppSettings in the web.config will new settings in web.release.config. This is my baseline web.config appSettings:

<appSettings>
  <add key="KeyA" value="ValA"/>
  <add key="KeyB" value="ValB"/>
</appSettings>

Now in my web.release.config file, I am going to create a appSettings section except I will include the attribute xdt:Transform=”Replace” since I want to just replace the entire element. I did not have to use xdt:Locator because there is nothing to locate – I just want to wipe the slate clean and replace everything.

<appSettings xdt:Transform="Replace">
  <add key="ProdKeyA" value="ProdValA"/>
  <add key="ProdKeyB" value="ProdValB"/>
  <add key="ProdKeyC" value="ProdValC"/>
</appSettings>

Note that in the web.release.config file my appSettings section has three keys instead of two, and the keys aren’t even the same. Now let’s look at the generated web.config file what happens when we publish:

<appSettings>
   <add key="ProdKeyA" value="ProdValA"/>
   <add key="ProdKeyB" value="ProdValB"/>
   <add key="ProdKeyC" value="ProdValC"/>
 </appSettings>

Just as we expected – the web.config appSettings were completely replaced by the values in web.release config. That was easy!

For unsigned APK: Simply set signingConfig null. It will give you appName-debug-unsigned.apk

debug {
     signingConfig null
}

And build from Build menu. Enjoy

For signed APK:

signingConfigs {
        def keyProps = new Properties()
        keyProps.load(rootProject.file('keystore.properties').newDataInputStream())
        internal {
            storeFile file(keyProps.getProperty('CERTIFICATE_PATH'))
            storePassword keyProps.getProperty('STORE_PASSWORD')
            keyAlias keyProps.getProperty('KEY_ALIAS')
            keyPassword keyProps.getProperty('KEY_PASSWORD')
        }
    }
    buildTypes {
        debug {
            signingConfig signingConfigs.internal
            minifyEnabled false
        }
        release {
            signingConfig signingConfigs.internal
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

keystore.properties file

CERTIFICATE_PATH=./../keystore.jks
STORE_PASSWORD=password
KEY_PASSWORD=password
KEY_ALIAS=key0

The answer is given previous posts is valid. But not one answer is complete with respect to:

1. Changing the /etc/profile is not recommended simply because of the reason (as stated in /etc/profile):

• It's NOT a good idea to change this file unless you know what you are doing. It's much better to create a custom.sh shell script in /etc/profile.d/ to make custom changes to your environment, as this will prevent the need for merging in future updates.*

2. So as stated above create /etc/profile.d/custom.sh file for custom changes.

3. Now, to always keep updated with newer versions of Java being installed, never put the absolute path, instead use:

#if making jdk as java home

export JAVA_HOME=$(readlink -f /usr/bin/javac | sed "s:/bin/javac::")

OR

#if making jre as java home

export JAVA_HOME=$(readlink -f /usr/bin/java | sed "s:/bin/java::")

4. And remember to have #! /bin/bash on the custom.sh file

I experienced the same problem on my repository. I'm the master of the repository, but I had such an error.

I've unprotected my project and then re-protected again, and the error is gone.

We had upgraded the gitlab version between my previous push and the problematic one. I suppose that this upgrade has created the bug.

If you really only want to see trailing spaces, this ST2 plugin will do the trick: https://github.com/SublimeText/TrailingSpaces

I fixed this issue on my debian GNU/Linux system by overiding system rules that way :

mv  /etc/udev/rules.d/51-android.rules /etc/udev/rules.d/99-android.rules

I used contents from files linked at : http://rootzwiki.com/topic/258-udev-rules-for-any-device-no-more-starting-adb-with-sudo/

Here's a quick and easy method:

CREATE TABLE database1.employees
AS
SELECT * FROM database2.employees;

This answer is modified from infrared's answer at Splitting large text file by a delimiter in Python

with open('words.txt') as fp:
    contents = fp.read()
    for entry in contents:
        # do something with entry  

In my situation, I was trying to run a java web service in Tomcat 7 via a connector in Eclipse. The app ran well when I deployed the war file to an instance of Tomcat 7 on my laptop. The app requires a jdbc type 2 driver for "IBM DB2 9.5". For some odd reason the connector in Eclispe could not see or use the paths in the IBM DB2 environment variables, to reach the dll files installed on my laptop as the jcc client. The error message either stated that it failed to find the db2jcct2 dll file or it failed to find the dependent libraries for that dll file. Ultimately, I deleted the connector and rebuilt it. Then it worked properly. I'm adding this solution here as documentation, because I failed to find this specific solution anywhere else.

I found an extra

  <dependentAssembly>
    <assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-2.2.28.0" newVersion="2.2.28.0" />
  </dependentAssembly>

in my web.config. removed that to get it to work. some other package I installed, and then removed caused the issue.

It is not good practice to save the value that is returned from JSON.stringify(userData) to a cookie; it can lead to a bug in some browsers.

Before using it, you should convert it to base64 (using btoa), and when reading it, convert from base64 (using atob).

val = JSON.stringify(userData)
val = btoa(val)

write_cookie(val)

Default values are only used if the arguments are not specified. In your case you did specify the arguments - both were supplied, with a value of NULL. (Yes, in this case NULL is considered a real value :-). Try:

EXEC TEST()

Share and enjoy.

Addendum: The default values for procedure parameters are certainly buried in a system table somewhere (see the SYS.ALL_ARGUMENTS view), but getting the default value out of the view involves extracting text from a LONG field, and is probably going to prove to be more painful than it's worth. The easy way is to add some code to the procedure:

CREATE OR REPLACE PROCEDURE TEST(X IN VARCHAR2 DEFAULT 'P',
                                 Y IN NUMBER DEFAULT 1)
AS
  varX VARCHAR2(32767) := NVL(X, 'P');
  varY NUMBER          := NVL(Y, 1);
BEGIN
  DBMS_OUTPUT.PUT_LINE('X=' || varX || ' -- ' || 'Y=' || varY);
END TEST;

Create a Random object with a seed and get the array random by doing:

public static final int ARRAY_LENGTH = 20;

byte[] byteArray = new byte[ARRAY_LENGTH];
new Random(System.currentTimeMillis()).nextBytes(byteArray);
// get fisrt element
System.out.println("Random byte: " + byteArray[0]);

The above answers get at the most fundamental aspects of the C++ memory model. In practice, most uses of std::atomic<> "just work", at least until the programmer over-optimizes (e.g., by trying to relax too many things).

There is one place where mistakes are still common: sequence locks. There is an excellent and easy-to-read discussion of the challenges at https://www.hpl.hp.com/techreports/2012/HPL-2012-68.pdf. Sequence locks are appealing because the reader avoids writing to the lock word. The following code is based on Figure 1 of the above technical report, and it highlights the challenges when implementing sequence locks in C++:

atomic<uint64_t> seq; // seqlock representation
int data1, data2;     // this data will be protected by seq

T reader() {
    int r1, r2;
    unsigned seq0, seq1;
    while (true) {
        seq0 = seq;
        r1 = data1; // INCORRECT! Data Race!
        r2 = data2; // INCORRECT!
        seq1 = seq;

        // if the lock didn't change while I was reading, and
        // the lock wasn't held while I was reading, then my
        // reads should be valid
        if (seq0 == seq1 && !(seq0 & 1))
            break;
    }
    use(r1, r2);
}

void writer(int new_data1, int new_data2) {
    unsigned seq0 = seq;
    while (true) {
        if ((!(seq0 & 1)) && seq.compare_exchange_weak(seq0, seq0 + 1))
            break; // atomically moving the lock from even to odd is an acquire
    }
    data1 = new_data1;
    data2 = new_data2;
    seq = seq0 + 2; // release the lock by increasing its value to even
}

As unintuitive as it seams at first, data1 and data2 need to be atomic<>. If they are not atomic, then they could be read (in reader()) at the exact same time as they are written (in writer()). According to the C++ memory model, this is a race even if reader() never actually uses the data. In addition, if they are not atomic, then the compiler can cache the first read of each value in a register. Obviously you wouldn't want that... you want to re-read in each iteration of the while loop in reader().

It is also not sufficient to make them atomic<> and access them with memory_order_relaxed. The reason for this is that the reads of seq (in reader()) only have acquire semantics. In simple terms, if X and Y are memory accesses, X precedes Y, X is not an acquire or release, and Y is an acquire, then the compiler can reorder Y before X. If Y was the second read of seq, and X was a read of data, such a reordering would break the lock implementation.

The paper gives a few solutions. The one with the best performance today is probably the one that uses an atomic_thread_fence with memory_order_relaxed before the second read of the seqlock. In the paper, it's Figure 6. I'm not reproducing the code here, because anyone who has read this far really ought to read the paper. It is more precise and complete than this post.

The last issue is that it might be unnatural to make the data variables atomic. If you can't in your code, then you need to be very careful, because casting from non-atomic to atomic is only legal for primitive types. C++20 is supposed to add atomic_ref<>, which will make this problem easier to resolve.

To summarize: even if you think you understand the C++ memory model, you should be very careful before rolling your own sequence locks.

I had the same error message following a tutorial. Our issue seems to be 'url: this.props.url' in the ajax call. In React.DOM when you are creating your element, mine looks like this.

ReactDOM.render(
    <CommentBox data="/api/comments" pollInterval={2000}/>,
    document.getElementById('content')
);

Well, this CommentBox does not have a url in its props, just data. When I switched url: this.props.url -> url: this.props.data, it made the right call to the server and I got back the expected data.

I hope it helps.

JavaScript

function getWeekDays(curr, firstDay = 1 /* 0=Sun, 1=Mon, ... */) {
  var cd = curr.getDate() - curr.getDay();
  var from = new Date(curr.setDate(cd + firstDay));
  var to = new Date(curr.setDate(cd + 6 + firstDay));

  return {
    from,
    to,
  };
};

TypeScript

export enum WEEK_DAYS {
  Sunday = 0,
  Monday = 1,
  Tuesday = 2,
  Wednesday = 3,
  Thursday = 4,
  Friday = 5,
  Saturday = 6,
}

export const getWeekDays = (
  curr: Date,
  firstDay: WEEK_DAYS = WEEK_DAYS.Monday
): { from: Date; to: Date } => {
  const cd = curr.getDate() - curr.getDay();
  const from = new Date(curr.setDate(cd + firstDay));
  const to = new Date(curr.setDate(cd + 6 + firstDay));

  return {
    from,
    to,
  };
};

Are you sure you want to do this? In essence, you're duplicating the data that is in the three original columns. From that point on, you'll need to make sure that the data in the combined field matches the data in the first three columns. This is more overhead for your application, and other processes that update the system will need to understand the relationship.

If you need the data, why not select in when you need it? The SQL for selecting what would be in that field would be:

SELECT CONCAT(zipcode, ' - ', city, ', ', state) FROM Table;

This way, if the data in the fields changes, you don't have to update your combined field.

public <T extends Iterable> T nullGuard(T item) {
  if (item == null) {
    return Collections.EmptyList;
  } else {
    return item;
  }
}

or, if saving lines of text is a priority (it shouldn't be)

public <T extends Iterable> T nullGuard(T item) {
  return (item == null) ? Collections.EmptyList : item;
}

would allow you to write

for (Object obj : nullGuard(list)) {
  ...
}

Of course, this really just moves the complexity elsewhere.

sub uniq {
    return keys %{{ map { $_ => 1 } @_ }};
}
my @my_array = ("a","a","b","b","c");
#print join(" ", @my_array), "\n";
my $a = join(" ", uniq(@my_array));
my @b = split(/ /,$a);
my $count = $#b;

I use the following (coffeescript):

$ ->
  # disable chrome's html5 datepicker
  for datefield in $('input[data-datepicker=true]')
    $(datefield).attr('type', 'text')
  # enable custom datepicker
  $('input[data-datepicker=true]').datepicker()

which gets converted to plain javascript:

(function() {
  $(function() {
    var datefield, _i, _len, _ref;
    _ref = $('input[data-datepicker=true]');
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      datefield = _ref[_i];
      $(datefield).attr('type', 'text');
    }
    return $('input[data-datepicker=true]').datepicker();
  }); 
}).call(this);

Ask this questions yourself? And you will decide your DB selection.

1. Do you need master-master? Then CouchDB. Mainly CouchDB supports master-master replication which anticipates nodes being disconnected for long periods of time. MongoDB would not do well in that environment.
2. Do you need MAXIMUM R/W throughput? Then MongoDB
3. Do you need ultimate single-server durability because you are only going to have a single DB server? Then CouchDB.
4. Are you storing a MASSIVE data set that needs sharding while maintaining insane throughput? Then MongoDB.
5. Do you need strong consistency of data? Then MongoDB.
6. Do you need high availability of database? Then CouchDB.
7. Are you hoping multi databases and multi tables/ collections? Then MongoDB
8. You have a mobile app offline users and want to sync their activity data to a server? Then you need CouchDB.
9. Do you need large variety of querying engine? Then MongoDB
10. Do you need large community to be using DB? Then MongoDB

The fastest way on Linux (the question is tagged as Linux), is to use a direct system call. Here's a little program that counts files (only, no directories) in a directory. You can count millions of files and it is around 2.5 times faster than "ls -f" and around 1.3-1.5 times faster than Christopher Schultz's answer.

#define _GNU_SOURCE
#include <dirent.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/syscall.h>

#define BUF_SIZE 4096

struct linux_dirent {
    long d_ino;
    off_t d_off;
    unsigned short d_reclen;
    char d_name[];
};

int countDir(char *dir) {

    int fd, nread, bpos, numFiles = 0;
    char d_type, buf[BUF_SIZE];
    struct linux_dirent *dirEntry;

    fd = open(dir, O_RDONLY | O_DIRECTORY);
    if (fd == -1) {
        puts("open directory error");
        exit(3);
    }
    while (1) {
        nread = syscall(SYS_getdents, fd, buf, BUF_SIZE);
        if (nread == -1) {
            puts("getdents error");
            exit(1);
        }
        if (nread == 0) {
            break;
        }

        for (bpos = 0; bpos < nread;) {
            dirEntry = (struct linux_dirent *) (buf + bpos);
            d_type = *(buf + bpos + dirEntry->d_reclen - 1);
            if (d_type == DT_REG) {
                // Increase counter
                numFiles++;
            }
            bpos += dirEntry->d_reclen;
        }
    }
    close(fd);

    return numFiles;
}

int main(int argc, char **argv) {

    if (argc != 2) {
        puts("Pass directory as parameter");
        return 2;
    }
    printf("Number of files in %s: %d\n", argv[1], countDir(argv[1]));
    return 0;
}

PS: It is not recursive, but you could modify it to achieve that.

They are not. They're exactly the same.

However, some people say that parameters are placeholders in method signatures:

public void doMethod(String s, int i) {
  ..
}

String s and int i are sometimes said to be parameters. The arguments are the actual values/references:

myClassReference.doMethod("someString", 25);

"someString" and 25 are sometimes said to be the arguments.

I'm posting this answer because the one with the most votes led me astray. To redirect from a servlet, you simply do this:

response.sendRedirect("simpleList.do")

In this particular question, I think @M-D is correctly explaining why the asker is having his problem, but since this is the first result on google when you search for "Redirect from Servlet" I think it's important to have an answer that helps most people, not just the original asker.

If you really only need to add the items in one array to another, the '+' operator is already overloaded to do that, incidentally:

a1 = [1,2,3,4,5]
a2 = [6,7,8,9]
a1 + a2
--> [1, 2, 3, 4, 5, 6, 7, 8, 9]

Much easier way to do so:

Stop docker service

sudo systemctl stop docker

Move existing docker directory to new location

sudo mv /var/lib/docker/ /path/to/new/docker/

Create symbolic link

sudo ln -s /path/to/new/docker/ /var/lib/docker

Start docker service

sudo systemctl start docker

Map<Integer, Point2D> hm = new HashMap<Integer, Point2D>();

To select all characters except the last n from a string (or put another way, remove last n characters from a string); use the SUBSTRING and CHAR_LENGTH functions together:

SELECT col
     , /* ANSI Syntax  */ SUBSTRING(col FROM 1 FOR CHAR_LENGTH(col) - 2) AS col_trimmed
     , /* MySQL Syntax */ SUBSTRING(col,     1,    CHAR_LENGTH(col) - 2) AS col_trimmed
FROM tbl

To remove a specific substring from the end of string, use the TRIM function:

SELECT col
     , TRIM(TRAILING '.php' FROM col)
-- index.php becomes index
-- index.txt remains index.txt

Is there a way to increase this size of memory an application can use?

Applications running on API Level 11+ can have android:largeHeap="true" on the <application> element in the manifest to request a larger-than-normal heap size, and getLargeMemoryClass() on ActivityManager will tell you how big that heap is. However:

1. This only works on API Level 11+ (i.e., Honeycomb and beyond)

2. There is no guarantee how large the large heap will be

3. The user will perceive your large-heap request, because it will force their other apps out of RAM terminate other apps' processes to free up system RAM for use by your large heap

4. Because of #3, and the fact that I expect that android:largeHeap will be abused, support for this may be abandoned in the future, or the user may be warned about this at install time (e.g., you will need to request a special permission for it)

5. Presently, this feature is lightly documented

It look like that you have installed Source files(Because src only comes in Source Files and we don't need it). Try to install Binary Files from there. And then set environment variables as described there. This worked for me. And I am sure it will also work for you.

Well, in my case I had to test a Phone Number with the help of regex, and I was getting the same error,

Invalid regular expression: /+923[0-9]{2}-(?!1234567)(?!1111111)(?!7654321)[0-9]{7}/: Nothing to repeat'

So, what was the error in my case was that + operator after the / in the start of the regex. So enclosing the + operator with square brackets [+], and again sending the request, worked like a charm.

Following will work:

/[+]923[0-9]{2}-(?!1234567)(?!1111111)(?!7654321)[0-9]{7}/

This answer may be helpful for those, who got the same type of error, but their chances of getting the error from this point of view, as mine! Cheers :)

In my case I did a wrong modification in the image.

I was able to find the problem checking the image shape.

print img.shape

From what I can see there are helper methods inside the ControllerBase class. Just use the StatusCode method:

[HttpPost]
public IActionResult Post([FromBody] string something)
{    
    //...
    try
    {
        DoSomething();
    }
    catch(Exception e)
    {
         LogException(e);
         return StatusCode(500);
    }
}

You may also use the StatusCode(int statusCode, object value) overload which also negotiates the content.

If you have installed WAMP on your machine, please make sure that it is running. Do not EXIT the WAMP from tray menu since it will stop the MySQL Server.

As others have pointed out, you are modifying a collection that you are iterating over and that's what's causing the error. The offending code is below:

foreach (KeyValuePair<int, int> kvp in rankings)
{
    .....

    if((double)(similarModules/modules.Count)>0.6)
    {
        rankings[kvp.Key] = rankings[kvp.Key] + 4;  // <--- This line is the problem
    }
    .....

What may not be obvious from the code above is where the Enumerator comes from. In a blog post from a few years back about Eric Lippert provides an example of what a foreach loop gets expanded to by the compiler. The generated code will look something like:

{
    IEnumerator<int> e = ((IEnumerable<int>)values).GetEnumerator(); // <-- This
                                                       // is where the Enumerator
                                                       // comes from.
    try
    { 
        int m; // OUTSIDE THE ACTUAL LOOP in C# 4 and before, inside the loop in 5
        while(e.MoveNext())
        {
            // loop code goes here
        }
    }
    finally
    { 
      if (e != null) ((IDisposable)e).Dispose();
    }
}

If you look up the MSDN documentation for IEnumerable (which is what GetEnumerator() returns) you will see:

Enumerators can be used to read the data in the collection, but they cannot be used to modify the underlying collection.

Which brings us back to what the error message states and the other answers re-state, you're modifying the underlying collection.

You can do something like this:

function getSorted(itemsArray , sortingArr ) {
  var result = [];
  for(var i=0; i<arr.length; i++) {
    result[i] = arr[sortArr[i]];
  }
  return result;
}

You can test it out here.

Note: this assumes the arrays you pass in are equivalent in size, you'd need to add some additional checks if this may not be the case.

refer link

refer

I don't believe the expression is sensical as it is.

Elvis means "if truthy, use the value, else use this other thing."

Your "other thing" is a closure, and the value is status != null, neither of which would seem to be what you want. If status is null, Elvis says true. If it's not, you get an extra layer of closure.

Why can't you just use:

(it.description == desc) && ((status == null) || (it.status == status))

Even if that didn't work, all you need is the closure to return the appropriate value, right? There's no need to create two separate find calls, just use an intermediate variable.

-ErrorAction Stop is changing things for you. Try adding this and see what you get:

Catch [System.Management.Automation.ActionPreferenceStopException] {
"caught a StopExecution Exception" 
$error[0]
}

This problem occures when you use your service via other application.If application has config file just add your service config information to this file. In my situation there wasn't any config file so I use this technique and it worked fine.Just store url address in application,read it and using BasicHttpBinding() method send it to service application as parameter.This is simple demonstration how I did it:

Configuration config = new Configuration(dataRowSet[0]["ServiceUrl"].ToString());

var remoteAddress = new System.ServiceModel.EndpointAddress(config.Url);


SimpleService.PayPointSoapClient client = 
    new SimpleService.PayPointSoapClient(new System.ServiceModel.BasicHttpBinding(), 
    remoteAddress);
SimpleService.AccountcredResponse response = client.AccountCred(request);

in of a Series checks whether the value is in the index:

In [11]: s = pd.Series(list('abc'))

In [12]: s
Out[12]: 
0    a
1    b
2    c
dtype: object

In [13]: 1 in s
Out[13]: True

In [14]: 'a' in s
Out[14]: False

One option is to see if it's in unique values:

In [21]: s.unique()
Out[21]: array(['a', 'b', 'c'], dtype=object)

In [22]: 'a' in s.unique()
Out[22]: True

or a python set:

In [23]: set(s)
Out[23]: {'a', 'b', 'c'}

In [24]: 'a' in set(s)
Out[24]: True

As pointed out by @DSM, it may be more efficient (especially if you're just doing this for one value) to just use in directly on the values:

In [31]: s.values
Out[31]: array(['a', 'b', 'c'], dtype=object)

In [32]: 'a' in s.values
Out[32]: True

What is unit testing?

Unit testing simply verifies that individual units of code (mostly functions) work as expected. Usually you write the test cases yourself, but some can be automatically generated.

The output from a test can be as simple as a console output, to a "green light" in a GUI such as NUnit, or a different language-specific framework.

Performing unit tests is designed to be simple, generally the tests are written in the form of functions that will determine whether a returned value equals the value you were expecting when you wrote the function (or the value you will expect when you eventually write it - this is called Test Driven Development when you write the tests first).

How do you perform unit tests?

Imagine a very simple function that you would like to test:

int CombineNumbers(int a, int b) {
    return a+b;
}

The unit test code would look something like this:

void TestCombineNumbers() {
    Assert.IsEqual(CombineNumbers(5, 10), 15); // Assert is an object that is part of your test framework
    Assert.IsEqual(CombineNumbers(1000, -100), 900);
}

When you run the tests, you will be informed that these tests have passed. Now that you've built and run the tests, you know that this particular function, or unit, will perform as you expect.

Now imagine another developer comes along and changes the CombineNumbers() function for performance, or some other reason:

int CombineNumbers(int a, int b) {
    return a * b;
}

When the developer runs the tests that you have created for this very simple function, they will see that the first Assert fails, and they now know that the build is broken.

When should you perform unit tests?

They should be done as often as possible. When you are performing tests as part of the development process, your code is automatically going to be designed better than if you just wrote the functions and then moved on. Also, concepts such as Dependency Injection are going to evolve naturally into your code.

The most obvious benefit is knowing down the road that when a change is made, no other individual units of code were affected by it if they all pass the tests.

You can use the google docs OCR reader.

In windows:

pip install tesseract

pip install tesseract-ocr

and check the file which is stored in your system usr/appdata/local/programs/site-pakages/python/python36/lib/pytesseract/pytesseract.py file and compile the file

IF vertical align won't work use padding. padding-top: 10px; it will shift the text to the bottom or padding-bottom: 10px; to shift the text in the text box to top

adjust the padding size till it suit the size you want. Thats the hack

Cannot comment so posting this as an answer, which is somewhat in between @piRSquared/@cyril's solution and @cs95's:

As noted by @cs95, if your data contains NaNs or Nones, converting to string type will throw an error when trying to convert to int afterwards.

However, if your data consists of (numerical) strings, using convert_dtypes will convert it to string type unless you use pd.to_numeric as suggested by @cs95 (potentially combined with df.apply()).

In the case that your data consists only of numerical strings (including NaNs or Nones but without any non-numeric "junk"), a possibly simpler alternative would be to convert first to float and then to one of the nullable-integer extension dtypes provided by pandas (already present in version 0.24) (see also this answer):

df['purchase'].astype(float).astype('Int64')

Note that there has been recent discussion on this on github (currently an -unresolved- closed issue though) and that in the case of very long 64-bit integers you may have to convert explicitly to float128 to avoid approximations during the conversions.

That's not how you do it.

>>> ''.join(['first', 'second', 'other'])
'firstsecondother'

is what you want.

If you do it in a for loop, it's going to be inefficient as string "addition"/concatenation doesn't scale well (but of course it's possible):

>>> mylist = ['first', 'second', 'other']
>>> s = ""
>>> for item in mylist:
...    s += item
...
>>> s
'firstsecondother'

select regexp_replace(field, E'[\\n\\r\\u2028]+', ' ', 'g' )

I had the same problem in my postgres d/b, but the newline in question wasn't the traditional ascii CRLF, it was a unicode line separator, character U2028. The above code snippet will capture that unicode variation as well.

Update... although I've only ever encountered the aforementioned characters "in the wild", to follow lmichelbacher's advice to translate even more unicode newline-like characters, use this:

select regexp_replace(field, E'[\\n\\r\\f\\u000B\\u0085\\u2028\\u2029]+', ' ', 'g' )

Kinda related, you might want to look at Shuttle (http://fitztrev.github.io/shuttle/), it's a SSH shortcut menu for OSX.

When you use background-size: cover the background image will automatically be stretched to cover the entire container. Aspect ratio is maintained however, so you will always lose part of the image, unless the aspect ratio of the image and the element it is applied to are identical.

I see two ways you could solve this:

• Do not maintain the aspect ratio of the image by setting background-size: 100% 100% This will also make the image cover the entire container, but the ratio will not be maintained. Disadvantage is that this distorts your image, and therefore may look very weird, depending on the image. With the image you are using in the fiddle, I think you could get away with it though.

• You could also calculate and set the height of the element with javascript, based on its width, so it gets the same ratio as the image. This calculation would have to be done on load and on resize. It should be easy enough with a few lines of code (feel free to ask if you want an example). Disadvantage of this method is that your width may become very small (on mobile devices), and therfore the calculated height also, which may cause the content of the container to overflow. This could be solved by changing the size of the content as well or something, but it adds some complexity to the solution/

As of JDK6U18 following are configurations for the Heap Size.

In the Client JVM, the default Java heap configuration has been modified to improve the performance of today's rich client applications. Initial and maximum heap sizes are larger and settings related to generational garbage collection are better tuned.

The default maximum heap size is half of the physical memory up to a physical memory size of 192 megabytes and otherwise one fourth of the physical memory up to a physical memory size of 1 gigabyte. For example, if your machine has 128 megabytes of physical memory, then the maximum heap size is 64 megabytes, and greater than or equal to 1 gigabyte of physical memory results in a maximum heap size of 256 megabytes. The maximum heap size is not actually used by the JVM unless your program creates enough objects to require it. A much smaller amount, termed the initial heap size, is allocated during JVM initialization. This amount is at least 8 megabytes and otherwise 1/64 of physical memory up to a physical memory size of 1 gigabyte.

Source : http://www.oracle.com/technetwork/java/javase/6u18-142093.html

As long as you are using CREATE TABLE, if you are creating the primary key on a single field, you can use:

CREATE TABLE mytable (
field1 TEXT,
field2 INTEGER PRIMARY KEY,
field3 BLOB,
);

With CREATE TABLE, you can also always use the following approach to create a primary key on one or multiple fields:

CREATE TABLE mytable (
field1 TEXT,
field2 INTEGER,
field3 BLOB,
PRIMARY KEY (field2, field1)
);

Reference: http://www.sqlite.org/lang_createtable.html

This answer does not address table alteration.

try

id == list[pos].getItemNumber()

instead of

id.equals(list[pos].getItemNumber()

All the other answers have described how to explicitly specify the location of the java platform, which is fine if you really want to use a specific version of java. However, if you just want to use the most up-to-date version of jdk, and you have that installed in a "normal" place for your operating system, then the best solution is to NOT specify a jdk location. Instead, let the Netbeans launcher search for jdk every time you start it up.

To do this, do not specify jdkhome on the command line, and comment out the line setting netbeans_jdkhome variable in any netbeans.conf files. (See other answers for where to look for these files.)

If you do this, when you install a new version of java, your netbeans will automagically use it. In most cases, that's probably exactly what you want.

You can create a Blob from your base64 data, and then read it asDataURL:

var img_b64 = canvas.toDataURL('image/png');
var png = img_b64.split(',')[1];

var the_file = new Blob([window.atob(png)],  {type: 'image/png', encoding: 'utf-8'});

var fr = new FileReader();
fr.onload = function ( oFREvent ) {
    var v = oFREvent.target.result.split(',')[1]; // encoding is messed up here, so we fix it
    v = atob(v);
    var good_b64 = btoa(decodeURIComponent(escape(v)));
    document.getElementById("uploadPreview").src = "data:image/png;base64," + good_b64;
};
fr.readAsDataURL(the_file);

Full example (includes junk code and console log): http://jsfiddle.net/tTYb8/

Alternatively, you can use .readAsText, it works fine, and its more elegant.. but for some reason text does not sound right ;)

fr.onload = function ( oFREvent ) {
    document.getElementById("uploadPreview").src = "data:image/png;base64,"
    + btoa(oFREvent.target.result);
};
fr.readAsText(the_file, "utf-8"); // its important to specify encoding here

Full example: http://jsfiddle.net/tTYb8/3/

One way could be by unchecking Bar Visibility "Shows Navigation Bar" In Attribute Inspector.Hope this help someone.

A little more information on XOR operation.

• XOR a number with itself odd number of times the result is number itself.
• XOR a number even number of times with itself, the result is 0.
• Also XOR with 0 is always the number itself.

I have covered this in another answer but you can do:

public static Map<TimeUnit,Long> computeDiff(Date date1, Date date2) {
    long diffInMillies = date2.getTime() - date1.getTime();
    List<TimeUnit> units = new ArrayList<TimeUnit>(EnumSet.allOf(TimeUnit.class));
    Collections.reverse(units);
    Map<TimeUnit,Long> result = new LinkedHashMap<TimeUnit,Long>();
    long milliesRest = diffInMillies;
    for ( TimeUnit unit : units ) {
        long diff = unit.convert(milliesRest,TimeUnit.MILLISECONDS);
        long diffInMilliesForUnit = unit.toMillis(diff);
        milliesRest = milliesRest - diffInMilliesForUnit;
        result.put(unit,diff);
    }
    return result;
}

The output is something like Map:{DAYS=1, HOURS=3, MINUTES=46, SECONDS=40, MILLISECONDS=0, MICROSECONDS=0, NANOSECONDS=0}, with the units ordered.

It's up to you to figure out how to internationalize this data according to the target locale.

You may try with below query :

INSERT INTO errortable (dateupdated,table1id)
VALUES (to_date(to_char(sysdate,'dd/mon/yyyy hh24:mi:ss'), 'dd/mm/yyyy hh24:mi:ss' ),1083 );

To view the result of it:

SELECT to_char(hire_dateupdated, 'dd/mm/yyyy hh24:mi:ss') 
FROM errortable 
    WHERE table1id = 1083;

Found it, MSDTC on the remote server was a clone of the local server.

From the Windows Application Events Log:

Event Type: Error
Event Source: MSDTC
Event Category: CM
Event ID: 4101
Date: 9/19/2011
Time: 1:32:59 PM
User: N/A
Computer: ASITESTSERVER
Description:

The local MS DTC detected that the MS DTC on ASICMSTEST has the same unique identity as the local MS DTC. This means that the two MS DTC will not be able to communicate with each other. This problem typically occurs if one of the systems were cloned using unsupported cloning tools. MS DTC requires that the systems be cloned using supported cloning tools such as SYSPREP. Running 'msdtc -uninstall' and then 'msdtc -install' from the command prompt will fix the problem. Note: Running 'msdtc -uninstall' will result in the system losing all MS DTC configuration information.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Running

msdtc -uninstall
msdtc -install

and then stopping and restarting SQL Server service fixed it.

If you use numpy,

if np.zeros(3)==None: pass

will give you error when numpy does elementwise comparison

You want the argument unpacking operator *.

Sometimes the application is bad generated: bad signed or bad aligned and report a mistake.

Check your jarsigner and zipaligned commands.

A nice solution that I've found is to do on UI something like:

<div *ngIf="isDataLoaded">
 ...Your page...
</div

Only when: isDataLoaded is true the page is rendered.

git checkout -b NEW_BRANCH_NAME COMMIT_ID

This will create a new branch called 'NEW_BRANCH_NAME' and check it out.

("check out" means "to switch to the branch")

git branch NEW_BRANCH_NAME COMMIT_ID

This just creates the new branch without checking it out.

in the comments many people seem to prefer doing this in two steps. here's how to do so in two steps:

git checkout COMMIT_ID
# you are now in the "detached head" state
git checkout -b NEW_BRANCH_NAME

try this code, it will work for all version of URLs like

• website.com
• www.website.com
• http://website.com

• http://www.website.com

  RewriteCond %{HTTPS} off
  RewriteCond %{HTTPS_HOST} !^www.website.com$ [NC]
  RewriteRule ^(.*)$ https://www.website.com/$1 [L,R=301]
  

if (!s.match(/abc|def/g)) {
    alert("match");
}
else {
    alert("no match");
}

Here's the mysql reference for cursors. So I'm guessing it's something like this:

  DECLARE done INT DEFAULT 0;
  DECLARE products_id INT;
  DECLARE result varchar(4000);
  DECLARE cur1 CURSOR FOR SELECT products_id FROM sets_products WHERE set_id = 1;
  DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;

  OPEN cur1;

  REPEAT
    FETCH cur1 INTO products_id;
    IF NOT done THEN
      CALL generate_parameter_list(@product_id, @result);
      SET param = param + "," + result; -- not sure on this syntax
    END IF;
  UNTIL done END REPEAT;

  CLOSE cur1;

  -- now trim off the trailing , if desired

You need to use <!DOCTYPE html> for :hover to work with anything other than the <a> tag. Try adding that to the top of your HTML.

Fully example to demonstrate how jQuery query all data in HTML table.

Assume there is a table like the following in your HTML code.

<table id="someTable">
  <thead>
    <tr>
      <td>title 0</td>
      <td>title 1</td>
      <td>title 2</td>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>row 0 td 0</td>
      <td>row 0 td 1</td>
      <td>row 0 td 2</td>
    </tr>
    <tr>
      <td>row 1 td 0</td>
      <td>row 1 td 1</td>
      <td>row 1 td 2</td>
    </tr>
    <tr>
      <td>row 2 td 0</td>
      <td>row 2 td 1</td>
      <td>row 2 td 2</td>
    </tr>
    <tr> ... </tr>
    <tr> ... </tr>
    ...
    <tr> ... </tr>
    <tr>
      <td>row n td 0</td>
      <td>row n td 1</td>
      <td>row n td 2</td>
    </tr>
  </tbody>
</table>

Then, The Answer, the code to print all row all column, should like this

$('#someTable tbody tr').each( (tr_idx,tr) => {
    $(tr).children('td').each( (td_idx, td) => {
        console.log( '[' +tr_idx+ ',' +td_idx+ '] => ' + $(td).text());
    });                 
});

After running the code, the result will show

[0,0] => row 0 td 0
[0,1] => row 0 td 1
[0,2] => row 0 td 2
[1,0] => row 1 td 0
[1,1] => row 1 td 1
[1,2] => row 1 td 2
[2,0] => row 2 td 0
[2,1] => row 2 td 1
[2,2] => row 2 td 2
...
[n,0] => row n td 0
[n,1] => row n td 1
[n,2] => row n td 2

Summary.
In the code,
tr_idx is the row index start from 0.
td_idx is the column index start from 0.

From this double-loop code,
you can get all loop-index and data in each td cell after comparing the Answer's source code and the output result.

Something I found later which helped, is the .ReadWriteTimeout property. This, in addition to the .Timeout property seemed to finally cut down on the time threads would spend trying to download from a problematic server. The default time for .ReadWriteTimeout is 5 minutes, which for my application was far too long.

So, it seems to me:

.Timeout = time spent trying to establish a connection (not including lookup time) .ReadWriteTimeout = time spent trying to read or write data after connection established

More info: HttpWebRequest.ReadWriteTimeout Property

Edit:

Per @KyleM's comment, the Timeout property is for the entire connection attempt, and reading up on it at MSDN shows:

Timeout is the number of milliseconds that a subsequent synchronous request made with the GetResponse method waits for a response, and the GetRequestStream method waits for a stream. The Timeout applies to the entire request and response, not individually to the GetRequestStream and GetResponse method calls. If the resource is not returned within the time-out period, the request throws a WebException with the Status property set to WebExceptionStatus.Timeout.

(Emphasis mine.)

<Style x:Key="MySeparatorStyle" TargetType="{x:Type Separator}">
                <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}"/>
                <Setter Property="Margin" Value="10,0,10,0"/>
                <Setter Property="Focusable" Value="false"/>
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="{x:Type Separator}">
                            <Border 
                                  BorderBrush="{TemplateBinding BorderBrush}" 
                                  BorderThickness="{TemplateBinding BorderThickness}" 
                                  Background="{TemplateBinding Background}" 
                                  Height="20" 
                                  Width="3" 
                                  SnapsToDevicePixels="true"/>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>

use

<StackPanel  Orientation="Horizontal"  >
       <TextBlock>name</TextBlock>
           <Separator Style="{StaticResource MySeparatorStyle}" ></Separator>
       <Button>preview</Button>
 </StackPanel>

While this usage of the PageName property on an object does in fact allow you to customize the exported sheet names in Excel, be warned that it can also update your report's namespace definitions, which could affect the ability to redeploy the report to your server.

I had a report that I applied this to within BIDS and it updated my namespace from 2008 to 2010. When I tried to publish the report to a 2008R2 report server, I got an error that the namespace was not valid and had to revert everything back. I am sure that my circumstance may be unique and perhaps this won't always happen, but I thought it worthy to post about. Once I found the problem, this page helped to revert the namespace back (There are tags that must also be removed in addition to resetting the namespace):

http://beatheadagainstwall.blogspot.com/2011/03/invalid-target-namespace-when-deploying.html?showComment=1440647962263#c5741523651495876761

Write the column name in between DOUBLE quote as in "columnName".

If the error message shows a different character case than what you wrote, it is very likely that your sql client performed an automatic case conversion for you. Use double quote to bypass that. (This works on Squirrell Client 3.0).

I had a similar issue, I was using the ViewBag and Element name as same. (Typing mistake)

If like me you are on debian and you want to move the mysql dir to your home or a path on /home/..., the solution is :

• Stop mysql by "sudo service mysql stop"
• change the "datadir" variable to the new path in "/etc/mysql/mariadb.conf.d/50-server.cnf"
• Do a backup of /var/lib/mysql : "cp -R -p /var/lib/mysql /path_to_my_backup"
• delete this dir : "sudo rm -R /var/lib/mysql"
• Move data to the new dir : "cp -R -p /path_to_my_backup /path_new_dir
• Change access by "sudo chown -R mysql:mysql /path_new_dir"
• Change variable "ProtectHome" by "false" on "/etc/systemd/system/mysqld.service"
• Reload systemd by "sudo systemctl daemon-reload"
• Restart mysql by "service mysql restart"

One day to find the solution for me on the mariadb documentation. Hope this help some guys!

The problem can be solved with a media query and some math. Here's a solution for a portait orientation:

@media (max-device-aspect-ratio: 3/4) {
  height: calc(100vw * 1.333 - 9%);
}
@media (max-device-aspect-ratio: 2/3) {
  height: calc(100vw * 1.5 - 9%);
}
@media (max-device-aspect-ratio: 10/16) {
  height: calc(100vw * 1.6 - 9%);
}
@media (max-device-aspect-ratio: 9/16) {
  height: calc(100vw * 1.778 - 9%);
}

Since vh will change when the url bar dissapears, you need to determine the height another way. Thankfully, the width of the viewport is constant and mobile devices only come in a few different aspect ratios; if you can determine the width and the aspect ratio, a little math will give you the viewport height exactly as vh should work. Here's the process

1) Create a series of media queries for aspect ratios you want to target.

• use device-aspect-ratio instead of aspect-ratio because the latter will resize when the url bar dissapears

• I added 'max' to the device-aspect-ratio to target any aspect ratios that happen to follow in between the most popular. THey won't be as precise, but they will be only for a minority of users and will still be pretty close to the proper vh.

• remember the media query using horizontal/vertical , so for portait you'll need to flip the numbers

2) for each media query multiply whatever percentage of vertical height you want the element to be in vw by the reverse of the aspect ratio.

• Since you know the width and the ratio of width to height, you just multiply the % you want (100% in your case) by the ratio of height/width.

3) You have to determine the url bar height, and then minus that from the height. I haven't found exact measurements, but I use 9% for mobile devices in landscape and that seems to work fairly well.

This isn't a very elegant solution, but the other options aren't very good either, considering they are:

• Having your website seem buggy to the user,

• having improperly sized elements, or

• Using javascript for some basic styling,

The drawback is some devices may have different url bar heights or aspect ratios than the most popular. However, using this method if only a small number of devices suffer the addition/subtraction of a few pixels, that seems much better to me than everyone having a website resize when swiping.

To make it easier, I also created a SASS mixin:

@mixin vh-fix {
  @media (max-device-aspect-ratio: 3/4) {
    height: calc(100vw * 1.333 - 9%);
  }
  @media (max-device-aspect-ratio: 2/3) {
    height: calc(100vw * 1.5 - 9%);
  }
  @media (max-device-aspect-ratio: 10/16) {
    height: calc(100vw * 1.6 - 9%);
  }
  @media (max-device-aspect-ratio: 9/16) {
    height: calc(100vw * 1.778 - 9%);
  }
}

The difference between GET and POST should not be viewed in terms of security, but rather in their intentions towards the server. GET should never change data on the server - at least other than in logs - but POST can create new resources.

Nice proxies won't cache POST data, but they may cache GET data from the URL, so you could say that POST is supposed to be more secure. But POST data would still be available to proxies that don't play nicely.

As mentioned in many of the answers, the only sure bet is via SSL.

But DO make sure that GET methods do not commit any changes, such as deleting database rows, etc.

db.adminCommand( { getLog: "*" } )

Then

db.adminCommand( { getLog : "global" } )

It is worth noting that if you fork a GitHub project and then rename the newly spawned copy, the new name appears in the members network graph of the parent project. The complementary relationship is preserved as well. This should address any reservations associated with the first point in the original question related to redirects, i.e. you can still get here from there, so to speak. I, too, was hesitant because of the irrevocability implied by the warning, so hopefully this will save others that delay.

The way I implemented automatical reformating like in Microsoft Visual Studio (It doesn't work perfect):

1. Edit > Macros > Start Macro Recording
2. Press continuously: Enter + Ctrl+Alt+I
3. Edit > Macros > Stop Macro Recording (Name it for example ReformatingByEnter)

Now we need to perform same actions but for Ctrl+Alt+L+;

4. Edit > Macros > Start Macro Recording
5. Press continuously: ; + Ctrl+Alt+I
6. Edit > Macros > Stop Macro Recording (Name it for example ReformatingBy;)

Now we need to assign HotKeys to these macros:

7. File > Settings > Keymap > press on a gear button > Duplicate...
8. Unfold a macro button (beneath) and by right clicking on two 
ours macros assign HotKeys for them: "Enter" and ";" correspondingly.

Json has to have key-value pairs. Tho you can still have an array as the value part. Thus add a "key" of your chousing:

var json = JSON.stringify({whatver: test});

Yes, via extensions. Try Bookmarks extension on marketplace.visualstudio.com

Hit Ctrl+Shift+P and type the install extensions and press enter, then type Bookmark and press enter.

Next you may wish to customize what keys are used to make a bookmark and move to it. For that see this question.

You can follow the image i shared to unstash if u accidentally tapped stashing.

The problem may lie in you don't have enabled openssl extention in your php.ini file

go to your php.ini file end remove ; in line where extension=openssl is

Of course in question code there is a part of code responsible for checking whether extension is loaded or not but maybe some uncautious forget about it

This works: The way it's set up I called it from the immediate pane, but you can easily create a sub() that will call MoveData once for each month, then just invoke the sub.

You may want to add logic to sort your monthly data after it's all been copied

Public Sub MoveData(MonthNumber As Integer, SheetName As String)

Dim sharePoint As Worksheet
Dim Month As Worksheet
Dim spRange As Range
Dim cell As Range

Set sharePoint = Sheets("Sharepoint")
Set Month = Sheets(SheetName)
Set spRange = sharePoint.Range("A2")
Set spRange = sharePoint.Range("A2:" & spRange.End(xlDown).Address)
For Each cell In spRange
    If Format(cell.Value, "MM") = MonthNumber Then
        copyRowTo sharePoint.Range(cell.Row & ":" & cell.Row), Month
    End If
Next cell

End Sub

Sub copyRowTo(rng As Range, ws As Worksheet)
    Dim newRange As Range
    Set newRange = ws.Range("A1")
    If newRange.Offset(1).Value <> "" Then
        Set newRange = newRange.End(xlDown).Offset(1)
        Else
        Set newRange = newRange.Offset(1)
    End If
    rng.Copy
    newRange.PasteSpecial (xlPasteAll)
End Sub

Adding a column using SSMS or ALTER TABLE .. ADD will not drop any existing data.

I am copy pasting from the Jupyter/IPython Notebook Quick Start Guide Documentation, released on Feb 13, 2018. http://jupyter-notebook-beginner-guide.readthedocs.io/en/latest/execute.html

1.3.3 Close a notebook: kernel shut down When a notebook is opened, its “computational engine” (called the kernel) is automatically started. Closing the notebook browser tab, will not shut down the kernel, instead the kernel will keep running until is explicitly shut down. To shut down a kernel, go to the associated notebook and click on menu File -> Close and Halt. Alternatively, the Notebook Dashboard has a tab named Running that shows all the running notebooks (i.e. kernels) and allows shutting them down (by clicking on a Shutdown button).

Summary: First close and halt the notebooks running.

1.3.2 Shut down the Jupyter Notebook App Closing the browser (or the tab) will not close the Jupyter Notebook App. To completely shut it down you need to close the associated terminal. In more detail, the Jupyter Notebook App is a server that appears in your browser at a default address (http://localhost:8888). Closing the browser will not shut down the server. You can reopen the previous address and the Jupyter Notebook App will be redisplayed. You can run many copies of the Jupyter Notebook App and they will show up at a similar address (only the number after “:”, which is the port, will increment for each new copy). Since with a single Jupyter Notebook App you can already open many notebooks, we do not recommend running multiple copies of Jupyter Notebook App.

Summary: Second, quit the terminal from which you fired Jupyter.

In AndroidManifest.xml, set android:theme="@android:style/Theme.NoTitleBar.Fullscreen"in application tag.

Individual activities can override the default by setting their own theme attributes.

With all credit to LukeH, I've put together some extension methods for easy use:

public static DateTime FromUnixTime(this long unixTime)
{
    var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
    return epoch.AddSeconds(unixTime);
}

public static long ToUnixTime(this DateTime date)
{
    var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
    return Convert.ToInt64((date - epoch).TotalSeconds);
}

Note the comment below from CodesInChaos that the above FromUnixTime returns a DateTime with a Kind of Utc, which is fine, but the above ToUnixTime is much more suspect in that doesn't account for what kind of DateTime the given date is. To allow for date's Kind being either Utc or Local, use ToUniversalTime:

public static long ToUnixTime(this DateTime date)
{
    var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
    return Convert.ToInt64((date.ToUniversalTime() - epoch).TotalSeconds);
}

ToUniversalTime will convert a Local (or Unspecified) DateTime to Utc.

if you dont want to create the epoch DateTime instance when moving from DateTime to epoch you can also do:

public static long ToUnixTime(this DateTime date)
{
    return (date.ToUniversalTime().Ticks - 621355968000000000) / 10000000;
}

When you have a lot of insertion or deletion in the middle of the sequence. e.g. a memory manager.

In response to jt. You are correct, the HTML with just the password is susceptible to the Man in the middle attack. However, you can seed it with a GUID from the server ...

$.post(
  'includes/login.php', 
  { user: username, pass: $.md5(password + GUID) },
   onLogin, 
  'json' );

This would defeat the Man-In-The middle ... in that the server would generate a new GUID for each attempt.

I set the PHPRC variable and uncommented zend_extension=php_opcache.dll in php.ini and all works well.

var matches = [];
$(".className:checked").each(function() {
    matches.push(this.value);
});

I know this is pretty late but I don't see it as an answer and have been using this trick for years.

Simply subtract .005 from your value and use Round(@num,2).

Your example:

declare @num decimal(9,5) = 123.456

select round(@num-.005,2)

returns 123.45

It will automatically adjust the rounding to the correct value you are looking for.

By the way, are you recreating the program from the movie Office Space?

In my case, the auto-generated project appcompat_v7 was closed. So just open up that project in Package Explorer.

Hope this help.

First of all ASP.NET MVC does not work the same way WebForms does. You don't have the whole runat="server" thing. MVC does not offer the abstraction layer that WebForms offered. Probabaly you should try to understand what controllers and actions are and then you should look at model binding. Any beginner level tutorial about MVC shows how you can pass data between the client and the server.

I made a simple test:

int b;
for (int i = 0; i < 10; i++) {
    b = i;
}

vs

for (int i = 0; i < 10; i++) {
    int b = i;
}

I compiled these codes with gcc - 5.2.0. And then I disassembled the main () of these two codes and that's the result:

1º:

   0x00000000004004b6 <+0>:     push   rbp
   0x00000000004004b7 <+1>:     mov    rbp,rsp
   0x00000000004004ba <+4>:     mov    DWORD PTR [rbp-0x4],0x0
   0x00000000004004c1 <+11>:    jmp    0x4004cd <main+23>
   0x00000000004004c3 <+13>:    mov    eax,DWORD PTR [rbp-0x4]
   0x00000000004004c6 <+16>:    mov    DWORD PTR [rbp-0x8],eax
   0x00000000004004c9 <+19>:    add    DWORD PTR [rbp-0x4],0x1
   0x00000000004004cd <+23>:    cmp    DWORD PTR [rbp-0x4],0x9
   0x00000000004004d1 <+27>:    jle    0x4004c3 <main+13>
   0x00000000004004d3 <+29>:    mov    eax,0x0
   0x00000000004004d8 <+34>:    pop    rbp
   0x00000000004004d9 <+35>:    ret

vs

2º

   0x00000000004004b6 <+0>: push   rbp
   0x00000000004004b7 <+1>: mov    rbp,rsp
   0x00000000004004ba <+4>: mov    DWORD PTR [rbp-0x4],0x0
   0x00000000004004c1 <+11>:    jmp    0x4004cd <main+23>
   0x00000000004004c3 <+13>:    mov    eax,DWORD PTR [rbp-0x4]
   0x00000000004004c6 <+16>:    mov    DWORD PTR [rbp-0x8],eax
   0x00000000004004c9 <+19>:    add    DWORD PTR [rbp-0x4],0x1
   0x00000000004004cd <+23>:    cmp    DWORD PTR [rbp-0x4],0x9
   0x00000000004004d1 <+27>:    jle    0x4004c3 <main+13>
   0x00000000004004d3 <+29>:    mov    eax,0x0
   0x00000000004004d8 <+34>:    pop    rbp
   0x00000000004004d9 <+35>:    ret 

Which are exaclty the same asm result. isn't a proof that the two codes produce the same thing?

You could just use a HashSet<String> to maintain a collection of unique objects. If the Integer values in your map are important, then you can instead use the containsKey method of maps to test whether your key is already in the map.

You need to encode Unicode explicitly before writing to a file, otherwise Python does it for you with the default ASCII codec.

Pick an encoding and stick with it:

f.write(printinfo.encode('utf8') + '\n')

or use io.open() to create a file object that'll encode for you as you write to the file:

import io

f = io.open(filename, 'w', encoding='utf8')

You may want to read:

• The Python Unicode HOWTO

• Pragmatic Unicode by Ned Batchelder

• The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) by Joel Spolsky

before continuing.

For anyone trying to this in react. There is a slight difference.

// Document of 8.5 inch width and 11 inch high
new jsPDF('p', 'in', [612, 792]);

or

// Document of 8.5 inch width and 11 inch high
new jsPDF({
        orientation: 'p', 
        unit: 'in', 
        format: [612, 792]
});

When i tried the @Aidiakapi solution the pages were tiny. For a difference size take size in inches * 72 to get the dimensions you need. For example, i wanted 8.5 so 8.5 * 72 = 612. This is for [email protected].

change

});


$(document).ready(function () {
    $('.smallTabsHeader a').pluginbutton();
});

to

})(jQuery); //<-- ADD THIS


$(document).ready(function () {
    $('.smallTabsHeader a').pluginbutton();
});

This is needed because, you need to call the anonymous function that you created with

(function($){

and notice that it expects an argument that it will use internally as $, so you need to pass a reference to the jQuery object.

Additionally, you will need to change all the this. to $(this)., except the first one, in which you do return this.each

In the first one (where you do not need the $()) it is because in the plugin body, this holds a reference to the jQuery object matching your selector, but anywhere deeper than that, this refers to the specific DOM element, so you need to wrap it in $().

Full code at http://jsfiddle.net/gaby/NXESk/

try this,

package example.txtRead;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import java.util.Vector;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class txtRead extends Activity {
    String labels="caption";
    String text="";
    String[] s;
    private Vector<String> wordss;
    int j=0;
    private StringTokenizer tokenizer;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        wordss = new Vector<String>();
        TextView helloTxt = (TextView)findViewById(R.id.hellotxt);
        helloTxt.setText(readTxt());
 }

    private String readTxt(){

     InputStream inputStream = getResources().openRawResource(R.raw.toc);
//     InputStream inputStream = getResources().openRawResource(R.raw.internals);
     System.out.println(inputStream);
     ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

     int i;
  try {
   i = inputStream.read();
   while (i != -1)
      {
       byteArrayOutputStream.write(i);
       i = inputStream.read();
      }
      inputStream.close();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

     return byteArrayOutputStream.toString();
    }
}

As of version 0.5, the GitHub plugin for Jenkins can trigger a build when a change is pushed to GitHub.

I see examples with both DOM and SimpleXML, but none with the XMLWriter.

Please keep in mind that from the tests I've done, both DOM and SimpleXML are almost twice slower then the XMLWriter and for larger files you should consider using the later one.

Here's a full working example, clear and simple that meets the requirements, written with XMLWriter (I'm sure it will help other users):

// array with the key / value pairs of the information to be added (can be an array with the data fetched from db as well)
$songs = [
    'song1.mp3' => 'Track 1 - Track Title',
    'song2.mp3' => 'Track 2 - Track Title',
    'song3.mp3' => 'Track 3 - Track Title',
    'song4.mp3' => 'Track 4 - Track Title',
    'song5.mp3' => 'Track 5 - Track Title',
    'song6.mp3' => 'Track 6 - Track Title',
    'song7.mp3' => 'Track 7 - Track Title',
    'song8.mp3' => 'Track 8 - Track Title',
];

$xml = new XMLWriter();
$xml->openURI('songs.xml');
$xml->setIndent(true);
$xml->setIndentString('    ');
$xml->startDocument('1.0', 'UTF-8');
    $xml->startElement('xml');
            foreach($songs as $song => $track){
                $xml->startElement('track');
                    $xml->writeElement('path', $song);
                    $xml->writeElement('title', $track);
                $xml->endElement();
            }
    $xml->endElement();
$xml->endDocument();
$xml->flush();
unset($xml);

I read all the answers and still found it difficult to extract what I was supposed to do. If a picture is worth 1k words I hope this helps others implement a secure persistent storage based on Barry Jaspan's Improved Persistent Login Cookie Best Practice

If you have questions, feedback, or suggestions, I will try to update the diagram to reflect for the newbie trying to implement a secure persistent login.

ORG.APACHE.HADOOP.HIVE.SERDE2.OPENCSVSERDE Serde worked for me. My delimiter was '|' and one of the columns is enclosed in double quotes.

Query:

CREATE EXTERNAL TABLE EMAIL(MESSAGE_ID STRING, TEXT STRING, TO_ADDRS STRING, FROM_ADDRS STRING, SUBJECT STRING, DATE STRING)
ROW FORMAT SERDE 'ORG.APACHE.HADOOP.HIVE.SERDE2.OPENCSVSERDE'
WITH SERDEPROPERTIES (
     "SEPARATORCHAR" = "|",
     "QUOTECHAR"     = "\"",
     "ESCAPECHAR"    = "\""
)    
STORED AS TEXTFILE location '/user/abc/csv_folder';

1) Others (especially dirkgently) have noted that buffer needs to be allocated some memory space. For smallish values of N (say, N <= 4096), you can also allocate it on the stack:

#define BUFFER_SIZE 4096
char buffer[BUFFER_SIZE]

This saves you the worry of ensuring that you delete[] the buffer should an exception be thrown.

But remember that stacks are finite in size (so are heaps, but stacks are finiter), so you don't want to put too much there.

2) On a -1 return code, you should not simply return immediately (throwing an exception immediately is even more sketchy.) There are certain normal conditions that you need to handle, if your code is to be anything more than a short homework assignment. For example, EAGAIN may be returned in errno if no data is currently available on a non-blocking socket. Have a look at the man page for read(2).

Why your code didn't work

You code for i in range (100, 0) is fine, except

the third parameter (step) is by default +1. So you have to specify 3rd parameter to range() as -1 to step backwards.

for i in range(100, -1, -1):
    print(i)

NOTE: This includes 100 & 0 in the output.

There are multiple ways.

Better Way

For pythonic way, check PEP 0322.

This is Python3 pythonic example to print from 100 to 0 (including 100 & 0).

for i in reversed(range(101)):
    print(i)

The answer depends on your server's week-start set up, so it's either

SELECT [date_created] FROM table WHERE DATEPART(w,[date_created]) NOT IN (7,1)

if Sunday is the first day of the week for your server

or

SELECT [date_created] FROM table WHERE DATEPART(w,[date_created]) NOT IN (6,7)

if Monday is the first day of the week for your server

Comment if you've got any questions :-)

You can use this class simply:

public class DoodleCanvas  extends View{

    private Paint mPaint;
    private Path mPath;

    public DoodleCanvas(Context context, AttributeSet attrs) {
        super(context, attrs);
        mPaint = new Paint();
        mPaint.setColor(Color.RED);
        mPaint.setStyle(Paint.Style.STROKE);
        mPaint.setStrokeJoin(Paint.Join.ROUND);
        mPaint.setStrokeCap(Paint.Cap.ROUND);
        mPaint.setStrokeWidth(10);
        mPath = new Path();
    }


    @Override
    protected void onDraw(Canvas canvas) {
        canvas.drawPath(mPath, mPaint);
        super.onDraw(canvas);
    }


    @Override
    public boolean onTouchEvent(MotionEvent event) {

        switch (event.getAction()){

            case MotionEvent.ACTION_DOWN:
                mPath.moveTo(event.getX(), event.getY());
                break;

            case MotionEvent.ACTION_MOVE:
                mPath.lineTo(event.getX(), event.getY());
                invalidate();
                break;

            case MotionEvent.ACTION_UP:
                break;
        }

        return true;
    }
}

length of an array(type int) with sizeof: sizeof(array)/sizeof(int)

I don't think you can. I always go with height and width.

textarea{
width:400px;
height:100px;
}

the nice thing about doing it the CSS way is that you can completely style it up. Now you can add things like:

textarea{
width:400px;
height:100px;
border:1px solid #000000;
background-color:#CCCCCC;
}

I believe you are now able to use Window.getComputedStyle()

Documentation MDN

var style = window.getComputedStyle(element[, pseudoElt]);

Example to get width of an element:

window.getComputedStyle(document.querySelector('#mainbar')).width

@Test
public void testSearchManagementStaff() throws SQLException
{
    boolean res=true;
    ManagementDaoImp mdi=new ManagementDaoImp();
    boolean b=mdi.searchManagementStaff("[email protected]"," 123456");
    assertEquals(res,b);
}

This can be done very easily using a PostBackUrl and a regular button.

<asp:Button ID="Button1" runat="server" Text="Name of web location" PostBackUrl="web address" />

// @HostListener('scroll', ['$event']) // for scroll events of the current element
@HostListener('window:scroll', ['$event']) // for window scroll events
onScroll(event) {
  ...
}

or

<div (scroll)="onScroll($event)"></div>

Had this error when importing project from Eclipse. The reason was some of the xml files had errors. Check ALL your XML files for errors. Including androidmanifest.xml, and values, themes, styles, layouts folders, etc. Warnings in xml are ok, but errors will generate this error.

Afterwards, do a Clean Project and rebuild.

This is solved easily by removing you previous app from your device. And start to reinstall again. This works fine for me.

Try:

NSString *myString = [NSNumber stringValue];

On an inner join, they mean the same thing. However you will get different results in an outer join depending on if you put the join condition in the WHERE vs the ON clause. Take a look at this related question and this answer (by me).

I think it makes the most sense to be in the habit of always putting the join condition in the ON clause (unless it is an outer join and you actually do want it in the where clause) as it makes it clearer to anyone reading your query what conditions the tables are being joined on, and also it helps prevent the WHERE clause from being dozens of lines long.

This is my take on the various answers. I wanted to actually see the logged messages, even if I did not have the IE console open when they were fired, so I push them into a console.messages array that I create. I also added a function console.dump() to facilitate viewing the whole log. console.clear() will empty the message queue.

This solutions also "handles" the other Console methods (which I believe all originate from the Firebug Console API)

Finally, this solution is in the form of an IIFE, so it does not pollute the global scope. The fallback function argument is defined at the bottom of the code.

I just drop it in my master JS file which is included on every page, and forget about it.

(function (fallback) {    

    fallback = fallback || function () { };

    // function to trap most of the console functions from the FireBug Console API. 
    var trap = function () {
        // create an Array from the arguments Object           
        var args = Array.prototype.slice.call(arguments);
        // console.raw captures the raw args, without converting toString
        console.raw.push(args);
        var message = args.join(' ');
        console.messages.push(message);
        fallback(message);
    };

    // redefine console
    if (typeof console === 'undefined') {
        console = {
            messages: [],
            raw: [],
            dump: function() { return console.messages.join('\n'); },
            log: trap,
            debug: trap,
            info: trap,
            warn: trap,
            error: trap,
            assert: trap,
            clear: function() { 
                  console.messages.length = 0; 
                  console.raw.length = 0 ;
            },
            dir: trap,
            dirxml: trap,
            trace: trap,
            group: trap,
            groupCollapsed: trap,
            groupEnd: trap,
            time: trap,
            timeEnd: trap,
            timeStamp: trap,
            profile: trap,
            profileEnd: trap,
            count: trap,
            exception: trap,
            table: trap
        };
    }

})(null); // to define a fallback function, replace null with the name of the function (ex: alert)

Some extra info

The line var args = Array.prototype.slice.call(arguments); creates an Array from the arguments Object. This is required because arguments is not really an Array.

trap() is a default handler for any of the API functions. I pass the arguments to message so that you get a log of the arguments that were passed to any API call (not just console.log).

Edit

I added an extra array console.raw that captures the arguments exactly as passed to trap(). I realized that args.join(' ') was converting objects to the string "[object Object]" which may sometimes be undesirable. Thanks bfontaine for the suggestion.

https://github.com/visionmedia/express/blob/ee228f7aea6448cf85cc052697f8d831dce785d5/lib/response.js#L174

res.json eventually calls res.send, but before that it:

• respects the json spaces and json replacer app settings
• ensures the response will have utf8 charset and application/json content-type

Toni's answer is good, but I'd rather drop the ID and explicitly use input, that way all inputs with placeholder get the behavior:

<input type="text" placeholder="your text" />

Note that $(function(){ }); is the shorthand for $(document).ready(function(){ });:

$(function(){
    $('input').data('holder',$('input').attr('placeholder'));
    $('input').focusin(function(){
        $(this).attr('placeholder','');
    });
    $('input').focusout(function(){
        $(this).attr('placeholder',$(this).data('holder'));
    });
})

Demo.

For larger s&r tasks it's better and faster to use grep and xargs, so, for example;

grep -rl 'apples' /dir_to_search_under | xargs sed -i 's/apples/oranges/g'

If you want to write fast to file streams then you could make stream the read buffer larger:

wfstream f;
const size_t nBufferSize = 16184;
wchar_t buffer[nBufferSize];
f.rdbuf()->pubsetbuf(buffer, nBufferSize);

Also, when writing lots of data to files it is sometimes faster to logically extend the file size instead of physically, this is because when logically extending a file the file system does not zero the new space out before writing to it. It is also smart to logically extend the file more than you actually need to prevent lots of file extentions. Logical file extention is supported on Windows by calling SetFileValidData or xfsctl with XFS_IOC_RESVSP64 on XFS systems.

PHP allows "hinting" where you supply a class to specify an object. According to the PHP manual, "Type Hints can only be of the object and array (since PHP 5.1) type. Traditional type hinting with int and string isn't supported." The error is confusing because of your choice of "string" - put "myClass" in its place and the error will read differently: "Argument 1 passed to phpwtf() must be an instance of myClass, string given"

I did it like this :

// Your JSON
{"event":"forgot password"}

// Your class to map 
public class LoggingDto {
    @JsonProperty(value = "event")
    private FooEnum logType;
}

//Your enum
public enum FooEnum {

    DATA_LOG ("Dummy 1"),
    DATA2_LOG ("Dummy 2"),
    DATA3_LOG ("forgot password"),
    DATA4_LOG ("Dummy 4"),
    DATA5_LOG ("Dummy 5"),
    UNKNOWN ("");

    private String fullName;

    FooEnum(String fullName) {
        this.fullName = fullName;
    }

    public String getFullName() {
        return fullName;
    }

    @JsonCreator
    public static FooEnum getLogTypeFromFullName(String fullName) {
        for (FooEnum logType : FooEnum.values()) {
            if (logType.fullName.equals(fullName)) {
                return logType;
            }
        }
        return UNKNOWN;
    }


}

So the value of the property "logType" for class LoggingDto will be DATA3_LOG

In scala, you can:

  abstract class Tree
  case class Node(a:Int, left:Tree, right:Tree) extends Tree
  case class Leaf(a:Int) extends Tree

  def lca(tree:Tree, a:Int, b:Int):Tree = {
    tree match {
      case Node(ab,l,r) => {
        if(ab==a || ab ==b) tree else {
          val temp = lca(l,a,b);
          val temp2 = lca(r,a,b);
          if(temp!=null && temp2 !=null)
            tree
          else if (temp==null && temp2==null)
            null
          else if (temp==null) r else l
        }

      }
      case Leaf(ab) => if(ab==a || ab ==b) tree else null
    }
  }

new SecondForm().setVisible(true);

You can either use setVisible(false) or dispose() method to disappear current form.

@OP,

Is glob pettern not only used for file names?

No, "glob" pattern is not only used for file names. you an use it to compare strings as well. In your examples, you can use case/esac to look for strings patterns.

 gg=svm-grid-ch 
 # looking for the word "grid" in the string $gg
 case "$gg" in
    *grid* ) echo "found";;
 esac

 # [[ $gg =~ ^....grid* ]]
 case "$gg" in ????grid*) echo "found";; esac 

 # [[ $gg =~ s...grid* ]]
 case "$gg" in s???grid*) echo "found";; esac

In bash, when to use glob pattern and when to use regular expression? Thanks!

Regex are more versatile and "convenient" than "glob patterns", however unless you are doing complex tasks that "globbing/extended globbing" cannot provide easily, then there's no need to use regex. Regex are not supported for version of bash <3.2 (as dennis mentioned), but you can still use extended globbing (by setting extglob ). for extended globbing, see here and some simple examples here.

Update for OP: Example to find files that start with 2 characters (the dots "." means 1 char) followed by "g" using regex

eg output

$ shopt -s dotglob
$ ls -1 *
abg
degree
..g

$ for file in *; do [[ $file =~ "..g" ]] && echo $file ; done
abg
degree
..g

In the above, the files are matched because their names contain 2 characters followed by "g". (ie ..g).

The equivalent with globbing will be something like this: (look at reference for meaning of ? and * )

$ for file in ??g*; do echo $file; done
abg
degree
..g

import {MatButtonModule} from '@angular/material/button';

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        Intent i = new Intent(getActivity(), DiscussAddValu.class);
        startActivity(i);
    }
});

To test file existence, the parameter can be any one of the following:

-e: Returns true if file exists (regular file, directory, or symlink)
-f: Returns true if file exists and is a regular file
-d: Returns true if file exists and is a directory
-h: Returns true if file exists and is a symlink

All the tests below apply to regular files, directories, and symlinks:

-r: Returns true if file exists and is readable
-w: Returns true if file exists and is writable
-x: Returns true if file exists and is executable
-s: Returns true if file exists and has a size > 0

Example script:

#!/bin/bash
FILE=$1

if [ -f "$FILE" ]; then
   echo "File $FILE exists"
else
   echo "File $FILE does not exist"
fi

path.resolve('.') is also a reliable and clean option, because we almost always require('path'). It will give you absolute path of the directory from where it is called.

Specifying a default value would also work, assuming a default value is appropriate.

Use Rescue mode with cd and mount the filesystem. Try to check if any binary files or folder are deleted. If deleted you will have to manually install the rpms to get those files back.

https://askubuntu.com/questions/92946/cannot-boot-because-kernel-panic-not-syncing-attempted-to-kill-init

XMLStarlet or another XPath engine is the correct tool for this job.

For instance, with data.xml containing the following:

<root>
  <item> 
    <title>15:54:57 - George:</title>
    <description>Diane DeConn? You saw Diane DeConn!</description> 
  </item> 
  <item> 
    <title>15:55:17 - Jerry:</title> 
    <description>Something huh?</description>
  </item>
</root>

...you can extract only the first title with the following:

xmlstarlet sel -t -m '//title[1]' -v . -n <data.xml

Trying to use sed for this job is troublesome. For instance, the regex-based approaches won't work if the title has attributes; won't handle CDATA sections; won't correctly recognize namespace mappings; can't determine whether a portion of the XML documented is commented out; won't unescape attribute references (such as changing Brewster & Jobs to Brewster & Jobs), and so forth.

|| is the or operator.

if(A || B){ do something }

I know I'm a bit late to the game, but I thought I might provide the following snippet as an example of how I decode HTML entities using jQuery:

var varTitleE = "Chris' corner";
var varTitleD = $("<div/>").html(varTitleE).text();

console.log(varTitleE + " vs. " + varTitleD);???????????

Don't forget to fire-up your inspector/firebug to see the console results -- or simply replace console.log(...) w/alert(...)

That said, here's what my console via the Google Chrome inspector read:

Chris' corner vs. Chris' corner

Class objects support two kinds of operations: attribute references and instantiation

Attribute references use the standard syntax used for all attribute references in Python: obj.name. Valid attribute names are all the names that were in the class’s namespace when the class object was created. So, if the class definition looked like this:

class MyClass:
    """A simple example class"""
    i = 12345

    def f(self):
        return 'hello world'

then MyClass.i and MyClass.f are valid attribute references, returning an integer and a function object, respectively. Class attributes can also be assigned to, so you can change the value of MyClass.i by assignment. __doc__ is also a valid attribute, returning the docstring belonging to the class: "A simple example class".

Class instantiation uses function notation. Just pretend that the class object is a parameterless function that returns a new instance of the class. For example:

x = MyClass()

The instantiation operation (“calling” a class object) creates an empty object. Many classes like to create objects with instances customized to a specific initial state. Therefore a class may define a special method named __init__(), like this:

def __init__(self):
    self.data = []

When a class defines an __init__() method, class instantiation automatically invokes __init__() for the newly-created class instance. So in this example, a new, initialized instance can be obtained by:

x = MyClass()

Of course, the __init__() method may have arguments for greater flexibility. In that case, arguments given to the class instantiation operator are passed on to __init__(). For example,

class Complex:
    def __init__(self, realpart, imagpart):
        self.r = realpart
        self.i = imagpart

x = Complex(3.0, -4.5)
x.r, x.i

Taken from official documentation which helped me the most in the end.

Here is my example

class Bill():
    def __init__(self,apples,figs,dates):
        self.apples = apples
        self.figs = figs
        self.dates = dates
        self.bill = apples + figs + dates
        print ("Buy",self.apples,"apples", self.figs,"figs 
                and",self.dates,"dates. 
                Total fruitty bill is",self.bill," pieces of fruit :)")

When you create instance of class Bill:

purchase = Bill(5,6,7)

You get:

> Buy 5 apples 6 figs and 7 dates. Total fruitty bill is 18  pieces of
> fruit :)

IEEE 754 defines 1.0 / 0.0 as Infinity and -1.0 / 0.0 as -Infinity and 0.0 / 0.0 as NaN.

By the way, floating point values also have -0.0 and so 1.0/ -0.0 is -Infinity.

Integer arithmetic doesn't have any of these values and throws an Exception instead.

To check for all possible values (e.g. NaN, 0.0, -0.0) which could produce a non finite number you can do the following.

if (Math.abs(tab[i] = 1 / tab[i]) < Double.POSITIVE_INFINITY)
   throw new ArithmeticException("Not finite");

One way to insert text inside a rectangle is to insert a foreign object, wich is a DIV, inside rect object.

This way, the text will respct the limits of the DIV.

var g = d3.select("svg");_x000D_
     _x000D_
g.append("rect")_x000D_
.attr("x", 0)_x000D_
.attr("y", 0)_x000D_
.attr("width","100%")_x000D_
.attr("height","100%")_x000D_
.attr("fill","#000");_x000D_
_x000D_
_x000D_
var fo = g.append("foreignObject")_x000D_
 .attr("width","100%");_x000D_
_x000D_
fo.append("xhtml:div")_x000D_
  .attr("style","width:80%;color:#FFF;margin-right: auto;margin-left: auto;margin-top:40px")_x000D_
  .text("Mussum Ipsum, cacilds vidis litro abertis Mussum Ipsum, cacilds vidis litro abertis Mussum Ipsum, cacilds vidis litro abertis");

<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.9.1/d3.js"></script>_x000D_
<svg width="200" height="200"></svg>

You can use assign (doc) to change the value of perf.a1:

> assign(paste("perf.a", "1", sep=""),5)
> perf.a1
[1] 5

run npm install jquery --save

then on your root component, place this

global.jQuery = require('../node_modules/jquery/dist/jquery.js');
var $ = global.jQuery;

Do not forget to export it to enable you to use it with other components

export default {
  name: 'App',
  components: {$}
}

Convert minutes to hour:min:sec format

SELECT 
   TO_CHAR(TRUNC((MINUTES * 60) / 3600), 'FM9900') || ':' ||
   TO_CHAR(TRUNC(MOD((MINUTES * 60), 3600) / 60), 'FM00') || ':' ||
   TO_CHAR(MOD((MINUTES * 60), 60), 'FM00') AS MIN_TO_HOUR FROM DUAL

let's suppose

x=50
y=5

then

z=$((x/y))

this will work properly . But if you want to use / operator in case statements than it can't resolve it. In that case use simple strings like div or devide or something else. See the code

The reversed() builtin. It makes iterating much cleaner in many cases.

quick example:

for i in reversed([1, 2, 3]):
    print(i)

produces:

3
2
1

However, reversed() also works with arbitrary iterators, such as lines in a file, or generator expressions.

You can use following approach:

import org.apache.commons.codec.binary.Base64;

// Encode data on your side using BASE64
byte[] bytesEncoded = Base64.encodeBase64(str.getBytes());
System.out.println("encoded value is " + new String(bytesEncoded));

// Decode data on other side, by processing encoded data
byte[] valueDecoded = Base64.decodeBase64(bytesEncoded);
System.out.println("Decoded value is " + new String(valueDecoded));

Hope this answers your doubt.

I am not sure since I am not an Oracle user, but I assume that the difference lies when you use multi-byte character sets such as Unicode (UTF-16/32). In this case, 11 Bytes could account for less than 11 characters.

Also those field types might be treated differently in regard to accented characters or case, for example 'binaryField(ete) = "été"' will not match while 'charField(ete) = "été"' might (again not sure about Oracle).

Please set the request Content Type before you read the response stream;

 request.ContentType = "text/xml";

Something like this?

int[][] pixels = new int[w][h];

for( int i = 0; i < w; i++ )
    for( int j = 0; j < h; j++ )
        pixels[i][j] = img.getRGB( i, j );

If you want SSMS to maintain a query history, use the SSMS Tool Pack add on.

If you want to monitor the SQL Server for currently running queries, use SQL PRofiler as other have already suggested.

First you need to git init to create your own .git file, otherwise if you clone someones git folder it will not recognize your git credential. After you started git, then continue with git add. and git commit ...

I met the same problem and I resolved it by setting CopyLocal to true for the following libs:

System.Web.Http.dll
System.Web.Http.WebHost.dll
System.Net.Http.Formatting.dll

I must add that I use MVC4 and NET 4

Simpler, shorter, faster: EXISTS.

IF EXISTS (SELECT 1 FROM people p WHERE p.person_id = my_person_id) THEN
  -- do something
END IF;

The query planner can stop at the first row found - as opposed to count(), which will scan all matching rows regardless. Makes a difference with big tables. Hardly matters with a condition on a unique column - only one row qualifies anyway (and there is an index to look it up quickly).

^{Improved with input from @a_horse_with_no_name in the comments below.}

You could even use an empty SELECT list:

IF EXISTS (SELECT FROM people p WHERE p.person_id = my_person_id) THEN ...

Since the SELECT list is not relevant to the outcome of EXISTS. Only the existence of at least one qualifying row matters.

Setp 1 : Download the following apk files. 1)com.google.android.gms.apk (https://androidfilehost.com/?fid=95916177934534438) 2)com.android.vending-4.4.22.apk (https://androidfilehost.com/?fid=23203820527945795)

Step 2 : Create a new AVD without the google API's

Step 3 : Run the AVD (Start the emulator)

Step 4 : Install the downloaded apks using adb .

     1)adb install com.google.android.gms-6.7.76_\(1745988-038\)-6776038-minAPI9.apk  
     2)adb install com.android.vending-4.4.22.apk

adb come up with android sdks/studio

Step 5 : Create the application in google developer console

Step 6 : Configure the api key in your Androidmanifest.xml and google api version.

Note : In step1 you need to download the apk based on your Android API level(..18,19,21..) and google play services version (5,5.1,6,6.5......)

This will work 100%.

The following worked for me (Windows 7):

oradim -shutdown -sid enter_sid_here
oradim -startup -sid enter_sid_here

(with enter_sid_here replaced by the SID)

You are all wrong! Why? Because all you need is this code to work:

(image View) / C# Img is : your Image box

Keep this as is, without change ("ms-appx:///) this is code not your app name Images is your folder in your project you can change it. dog.png is your file in your folder, as well as i do my folder 'Images' and file 'dog.png' So the uri is :"ms-appx:///Images/dog.png" and my code :

private void Button_Click(object sender, RoutedEventArgs e)
    {
         img.Source = new BitmapImage(new Uri("ms-appx:///Images/dog.png"));
    }

Figured it out by testing all the stuff by myself. Couldn't find any topics about it tho, so I'll just leave the solution here. This might not be the only or even the best solution, but it works for my purposes (within getch's limits) and is better than nothing.

Note: proper keyDown() which would recognize all the keys and actual key presses, is still valued.

Solution: using ord()-function to first turn the getch() into an integer (I guess they're virtual key codes, but not too sure) works fine, and then comparing the result to the actual number representing the wanted key. Also, if I needed to, I could add an extra chr() around the number returned so that it would convert it to a character. However, I'm using mostly down arrow, esc, etc. so converting those to a character would be stupid. Here's the final code:

from msvcrt import getch
while True:
    key = ord(getch())
    if key == 27: #ESC
        break
    elif key == 13: #Enter
        select()
    elif key == 224: #Special keys (arrows, f keys, ins, del, etc.)
        key = ord(getch())
        if key == 80: #Down arrow
            moveDown()
        elif key == 72: #Up arrow
            moveUp()

Also if someone else needs to, you can easily find out the keycodes from google, or by using python and just pressing the key:

from msvcrt import getch
while True:
    print(ord(getch()))

Gson is also good for it: http://code.google.com/p/google-gson/

" Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object. Gson can work with arbitrary Java objects including pre-existing objects that you do not have source-code of. "

Check the API examples: https://sites.google.com/site/gson/gson-user-guide#TOC-Overview More examples: http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format-gson-api/

For UNIX, at least, this works...

import commands
username = commands.getoutput("echo $(whoami)")
print username

edit: I just looked it up and this works on Windows and UNIX:

import commands
username = commands.getoutput("whoami")

On UNIX it returns your username, but on Windows, it returns your user's group, slash, your username.

--

I.E.

UNIX returns: "username"

Windows returns: "domain/username"

--

It's interesting, but probably not ideal unless you are doing something in the terminal anyway... in which case you would probably be using os.system to begin with. For example, a while ago I needed to add my user to a group, so I did (this is in Linux, mind you)

import os
os.system("sudo usermod -aG \"group_name\" $(whoami)")
print "You have been added to \"group_name\"! Please log out for this to take effect"

I feel like that is easier to read and you don't have to import pwd or getpass.

I also feel like having "domain/user" could be helpful in certain applications in Windows.

Spent 3 hours trying the various options on Ubuntu 14.04LTS mentioned here and in another referenced tutorial to no avail. For a while tried with OpenCV3.0.0 but eventually switched to 3.1.0. The following worked:

cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D PYTHON3_LIBRARY=/usr/lib/x86_64-linux-gnu/libpython3.4m.so \
-D PYTHON3_EXECUTABLE=/usr/bin/python3.4m \
-D PYTHON3_INCLUDE_DIR=/usr/include/python3.4m/ \
-D PYTHON_INCLUDE_DIR=/usr/include/python3.4m/ \
-D PYTHON3_INCLUDE_DIRS=/usr/include/python3.4m/ \
-D PYTHON_INCLUDE_DIRS=/usr/include/python3.4m/ \
-D BUILD_opencv_python3=ON \
.

output:

--   OpenCV modules:
--     To be built:                 core flann imgproc ml photo video imgcodecs shape videoio highgui objdetect superres ts features2d calib3d stitching videostab python3
--     Disabled:                    java world
--     Disabled by dependency:      -
--     Unavailable:                 cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev python2 viz

--   Python 3:
--     Interpreter:                 /usr/bin/python3.4m (ver 3.4.3)
--     Libraries:                   /usr/lib/x86_64-linux-gnu/libpython3.4m.so (ver 3.4.3)
--     numpy:                       /usr/lib/python3/dist-packages/numpy/core/include (ver 1.8.2)
--     packages path:               /usr/lib/python3/dist-packages
-- 
--   Python (for build):      

And with virtualenv used the following cmake options:

cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=$VIRTUAL_ENV \
-D PYTHON3_EXECUTABLE=$VIRTUAL_ENV/bin/python3 \
-D PYTHON3_PACKAGES_PATH=$VIRTUAL_ENV/lib/python3.4/site-packages \
-D PYTHON3_LIBRARY=/usr/lib/x86_64-linux-gnu/libpython3.4m.so \
-D PYTHON3_INCLUDE_DIR=$VIRTUAL_ENV/include/python3.4m \
-D PYTHON_INCLUDE_DIR=$VIRTUAL_ENV/include/python3.4m \
-D PYTHON3_INCLUDE_DIRS=$VIRTUAL_ENV/include/python3.4m \
-D PYTHON_INCLUDE_DIRS=$VIRTUAL_ENV/include/python3.4m \
-D BUILD_opencv_python3=ON \
.

If you have issues with ffmpeg includes add the following to remove video support:

-D WITH_FFMPEG=OFF \
-D WITH_GSTREAMER=OFF \
-D WITH_V4L=OFF \
-D WITH_1394=OFF \

Also take heed of the warning from cmake about using make clean. If you ran make clean you might have to uncompress the original package anew. Cmake is dead, long live the Cmake

You need to use double apostrophe instead of single in the "You''re", eg:

String text = java.text.MessageFormat.format("You''re about to delete {0} rows.", 5);
System.out.println(text);

You need a spring-security-config.jar on your classpath.

The exception means that the security: xml namescape cannot be handled by spring "parsers". They are implementations of the NamespaceHandler interface, so you need a handler that knows how to process <security: tags. That's the SecurityNamespaceHandler located in spring-security-config

Per the Javadoc:

Returns the value of a request parameter as a String, or null if the parameter does not exist.

Do note that it is possible to submit an empty parameter - such that the parameter exists, but has no value. For example, I could include &log=&somethingElse into the URL to enable logging, without needing to specify &log=true. In this case, the value will be an empty String ("").

See this page: https://slai.github.io/posts/powershell-and-external-commands-done-right/

Summary using vshadow as the external executable:

$exe = "H:\backup\scripts\vshadow.exe"
&$exe -p -script=H:\backup\scripts\vss.cmd E: M: P:

I believe the best way to change the password is simply to use:

\password

in the Postgres console.

Per ALTER USER documentation:

Caution must be exercised when specifying an unencrypted password with this command. The password will be transmitted to the server in cleartext, and it might also be logged in the client's command history or the server log. psql contains a command \password that can be used to change a role's password without exposing the cleartext password.

Note: ALTER USER is an alias for ALTER ROLE

From PowerShell version 5 onwards (included in Windows Server 2016, downloadable as part of WMF 5 for earlier versions), this is possible with remoting. The benefit of this is that it works even if, for whatever reason, you can't access shares.

For this to work, the local session where copying is initiated must have PowerShell 5 or higher installed. The remote session does not need to have PowerShell 5 installed -- it works with PowerShell versions as low as 2, and Windows Server versions as low as 2008 R2.^[1]

From server A, create a session to server B:

$b = New-PSSession B

And then, still from A:

Copy-Item -FromSession $b C:\Programs\temp\test.txt -Destination C:\Programs\temp\test.txt

Copying items to B is done with -ToSession. Note that local paths are used in both cases; you have to keep track of what server you're on.

[1]: when copying from or to a remote server that only has PowerShell 2, beware of this bug in PowerShell 5.1, which at the time of writing means recursive file copying doesn't work with -ToSession, an apparently copying doesn't work at all with -FromSession.

This will convert to a numeric value without the need to cast or specify length or digits:

STRING_COL+0.0

If your column is an INT, can leave off the .0 to avoid decimals:

STRING_COL+0

ngRoute is a module built by the Angular team that provides basic client-side routing functionality. This module provides a fairly powerful base for routing, and can be built upon pretty easily to give solid routing functionality, as exemplified in this blog post (be sure to read the comment trail between Ward Bell and Ben Nadel, the author - they are a couple of Angular pros)

ui-router shifts the focus from url-centric routes to application "states", which may or may not be reflected in the url.

The primary features added by ui-router are nested states and named views.

Nested states allow you to separate controller logic for the various pieces of the application. A very simple example of this would be an app with primary navigation across the top, a secondary navigation list along the left, and content on the right. Without nested states, a single controller would typically have to handle the display logic for the secondary navigation as well as the content. Nested routing allows you to separate these concerns.

Named views are another additional feature of ui-router. With ngRoute, you can only have a single ngView directive on a page, whereas with named views in ui-router you can specify multiple ui-view directives, and then each state is able to affect the template and controller of the names views. A super simple example of this would be to have the main content of your app be the primary view, and then to also have a footer bar that would be a separate ui-view. In this scenario, the footer's controller no longer has to listen for state/route changes.

A good comparison of ngRoute and ui-router can be found on this podcast episode.

Just to make things more confusing, keep an eye on the new "official" routing module that the Angular team is expecting to release for versions 1.5 and 2.0 of Angular. This will be replacing the ngRoute module. Here is the current documentation for the new Router module - it is fairly sparse as of this posting since the implementation has not yet been finalized. Watch here for more news on when this module will actually be released.

cat files.txt | awk '{ total += $1} END {print total}'

You can use the awk to do the same it even skips the non integers

$ cat files.txt
1
2.3
3.4
ew
1

$ cat files.txt | awk '{ total += $1} END {print total}'
7.7

or you can use ls command and calculate human readable output

$ ls -l | awk '{ sum += $5} END  {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; }'
15.69 Mb

$ ls -l *.txt | awk '{ sum += $5} END  {hum[1024^3]="Gb"; hum[1024^2]="Mb"; hum[1024]="Kb"; for (x=1024^3; x>=1024; x/=1024) { if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x]; break; } } if (sum<1024) print "1kb"; }'
2.10 Mb

The latest set of guidance is as follows: (from https://docs.microsoft.com/en-us/azure/azure-functions/functions-dotnet-class-library#environment-variables)

Use:

System.Environment.GetEnvironmentVariable(name, EnvironmentVariableTarget.Process);

From the docs:

public static class EnvironmentVariablesExample
{
    [FunctionName("GetEnvironmentVariables")]
    public static void Run([TimerTrigger("0 */5 * * * *")]TimerInfo myTimer, ILogger log)
    {
        log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}");
        log.LogInformation(GetEnvironmentVariable("AzureWebJobsStorage"));
        log.LogInformation(GetEnvironmentVariable("WEBSITE_SITE_NAME"));
    }

    public static string GetEnvironmentVariable(string name)
    {
        return name + ": " +
            System.Environment.GetEnvironmentVariable(name, EnvironmentVariableTarget.Process);
    }
}

App settings can be read from environment variables both when developing locally and when running in Azure. When developing locally, app settings come from the Values collection in the local.settings.json file. In both environments, local and Azure, GetEnvironmentVariable("<app setting name>") retrieves the value of the named app setting. For instance, when you're running locally, "My Site Name" would be returned if your local.settings.json file contains { "Values": { "WEBSITE_SITE_NAME": "My Site Name" } }.

The System.Configuration.ConfigurationManager.AppSettings property is an alternative API for getting app setting values, but we recommend that you use GetEnvironmentVariable as shown here.

http uses port 80, and understandably, your internet browser will automatically use that port when you type in an address - unless you specify another port. Now, when running a web server on your computer, you need to access that server somehow - and since port 80 is already busy, you need to use a different port to successfully connect to it. Although any open port is fair game, usually such a server is configured to use port 8080, hence when accessing your server you type in:

http:// (protocol) localhost (your computer) :8080 (port 8080) / (path pointing to the root of the public folder of your server)

Update (2020)

My biggest issue with external tools (e.g. Python) was that you have to deal with package managers and dependencies to install them.

However, now that we have jq as a standalone, static tool that's easy to install cross-platform via Github Releases and Webi (webinstall.dev/jq), I'd recommend that:

Mac, Linux:

curl -sS https://webinstall.dev/jq | bash

Windows 10:

curl.exe -A MS https://webinstall.dev/jq | powershell

Original (2011)

TickTick is a JSON parser written in bash (<250 lines of code)

Here's the author's snippit from his article, Imagine a world where Bash supports JSON:

#!/bin/bash
. ticktick.sh

``  
  people = { 
    "Writers": [
      "Rod Serling",
      "Charles Beaumont",
      "Richard Matheson"
    ],  
    "Cast": {
      "Rod Serling": { "Episodes": 156 },
      "Martin Landau": { "Episodes": 2 },
      "William Shatner": { "Episodes": 2 } 
    }   
  }   
``  

function printDirectors() {
  echo "  The ``people.Directors.length()`` Directors are:"

  for director in ``people.Directors.items()``; do
    printf "    - %s\n" ${!director}
  done
}   

`` people.Directors = [ "John Brahm", "Douglas Heyes" ] ``
printDirectors

newDirector="Lamont Johnson"
`` people.Directors.push($newDirector) ``
printDirectors

echo "Shifted: "``people.Directors.shift()``
printDirectors

echo "Popped: "``people.Directors.pop()``
printDirectors