You can add the src
folder to build path by:
- Select Java perspective.
- Right click on
src
folder. - Select Build Path > Use a source folder.
And you are done. Hope this help.
EDIT: Refer to the Eclipse documentation
The simplest answer to the meaning of deprecated
when used to describe software APIs is:
- Stop using APIs marked as deprecated!
- They will go away in a future release!!
- Start using the new versions ASAP!!!
It's all about the input seed. Same seed give the same results all the time. Even you re-run your program again and again it's the same output.
public static void main(String[] args) {
randomString(-229985452);
System.out.println("------------");
randomString(-229985452);
}
private static void randomString(int i) {
Random ran = new Random(i);
System.out.println(ran.nextInt());
System.out.println(ran.nextInt());
System.out.println(ran.nextInt());
System.out.println(ran.nextInt());
System.out.println(ran.nextInt());
}
Output
-755142161
-1073255141
-369383326
1592674620
-1524828502
------------
-755142161
-1073255141
-369383326
1592674620
-1524828502
There is a small difference between both.
Second declaration assignates the reference associated to the constant SOME
to the variable str
First declaration creates a new String having for value the value of the constant SOME
and assignates its reference to the variable str
.
In the first case, a second String has been created having the same value that SOME
which implies more inititialization time. As a consequence, you should avoid it. Furthermore, at compile time, all constants SOME
are transformed into the same instance, which uses far less memory.
As a consequence, always prefer second syntax.
I had same problem to find a way to check whether ASP.NET 4.5 is on the Server. Because v4.5 is in place replace to v4.0, if you look at c:\windows\Microsoft.NET\Framework, you will not see v4.5 folder. Actually there is a simple way to see the version installed in the machine. Under Windows Server 2008 or Windows 7, just go to control panel -> Programs and Features, you will find "Microsoft .NET Framework 4.5" if it is installed.
Go to terminal
$ adb -s UDID shell
$ ip addr | grep inet
or
$ netcfg | grep inet
You can do this be using a new Subject
too:
Typescript:
let subject = new Subject();
get_categories(...) {
this.http.post(...).subscribe(
(response) => {
this.total = response.json();
subject.next();
}
);
return subject; // can be subscribed as well
}
get_categories(...).subscribe(
(response) => {
// ...
}
);
try this Dim Arraystr() as String ={}
I've written a gem that does this for Rails ActiveRecord objects. The example uses created_at, but it will also work on updated_at or anything with the class ActiveSupport::TimeWithZone.
Just gem install and call the 'pretty' method on your TimeWithZone instance.
This works for multiple occurrences per line:
grep -o string * | wc -l
It is always a good coding practice to make your one argument constructors (including those with default values for arg2
,arg3
,...) as already stated.
Like always with C++: if you don't - you'll wish you did...
Another good practice for classes is to make copy construction and assignment private (a.k.a. disable it) unless you really need to implement it. This avoids having eventual copies of pointers when using the methods that C++ will create for you by default. An other way to do this is derive from boost::noncopyable
.
Or
Navigate to project root folder and use following commands :
mvn clean install -U or mvn clean install --update-snapshots
Here -U will Forces a check for missing releases and updated snapshots on remote repositories
to prevent Nullpointerexceptions on the listFiles() function and recursivly get all files from subdirectories too..
public void listFilesForFolder(final File folder,List<File> fileList) {
File[] filesInFolder = folder.listFiles();
if (filesInFolder != null) {
for (final File fileEntry : filesInFolder) {
if (fileEntry.isDirectory()) {
listFilesForFolder(fileEntry,fileList);
} else {
fileList.add(fileEntry);
}
}
}
}
List<File> fileList = new List<File>();
final File folder = new File("/home/you/Desktop");
listFilesForFolder(folder);
In python \
(backslash) is used as an escape character. What this means that in places where you wish to insert a special character (such as newline), you would use the backslash and another character (\n
for newline)
With your example string you would notice that when you put "C:\Users\Josh\Desktop\20130216"
in the repl you will get "C:\\Users\\Josh\\Desktop\x8130216"
. This is because \2
has a special meaning in a python string. If you wish to specify \
then you need to put two \\
in your string.
"C:\\Users\\Josh\\Desktop\\28130216"
The other option is to notify python that your entire string must NOT use \
as an escape character by pre-pending the string with r
r"C:\Users\Josh\Desktop\20130216"
This is a "raw" string, and very useful in situations where you need to use lots of backslashes such as with regular expression strings.
In case you still wish to replace that single \
with \\
you would then use:
directory = string.replace(r"C:\Users\Josh\Desktop\20130216", "\\", "\\\\")
Notice that I am not using r'
in the last two strings above. This is because, when you use the r'
form of strings you cannot end that string with a single \
Why can't Python's raw string literals end with a single backslash?
To show more than one inputs inline without using "form-inline" class you can use the next code:
<div class="input-group">
<input type="text" class="form-control" value="First input" />
<span class="input-group-btn"></span>
<input type="text" class="form-control" value="Second input" />
</div>
Then using CSS selectors:
/* To remove space between text inputs */
.input-group > .input-group-btn:empty {
width: 0px;
}
Basically you have to insert an empty span tag with "input-group-btn" class between input tags.
If you want to see more examples of input groups and bootstrap-select groups take a look at this URL: http://jsfiddle.net/vkhusnulina/gze0Lcm0
Could use the following and then explode the post result explode(",", $_POST['data']);
to give an array of results.
var data = new Array();
$("input[name='checkBoxesName']:checked").each(function(i) {
data.push($(this).val());
});
Just in case you are (for whatever reason) unable to use curl
nor file_get_contents
, you can work around:
$img = imagecreatefrompng('...');
ob_start();
imagepng($img);
$bin = ob_get_clean();
$b64 = base64_encode($bin);
If you have both Python2 and Python3 installed on your Mac, you can use
python --version
to check the version of Python2, and
python3 --version
to check the version of Python3.
However, if only Python3 is installed, then your system might use python
instead of python3
for Python3. In this case, you can just use
python --version
to check the version of Python3.
First step to get The Library:
Open terminal and execute pip install mysql-python-connector
.
After the installation go the second step.
Second Step to import the library:
Open your python file and write the following code:
import mysql.connector
Third step to connect to the server: Write the following code:
conn = mysql.connector.connect(host=
you host name like localhost or 127.0.0.1
, username=your username like root
, password =your password
)
Third step Making the cursor:
Making a cursor makes it easy for us to run queries.
To make the cursor use the following code:
cursor = conn.cursor()
Executing queries:
For executing queries you can do the following:
cursor.execute(query)
If the query changes any thing in the table you need to add the following code after the execution of the query:
conn.commit()
Getting values from a query:
If you want to get values from a query then you can do the following:
cursor.excecute('SELECT * FROM
table_name') for i in cursor: print(i) #Or for i in cursor.fetchall(): print(i)
The fetchall() method returns a list with many tuples that contain the values that you requested ,row after row .
Closing the connection:
To close the connection you should use the following code:
conn.close()
Handling exception:
To Handel exception you can do it Vai the following method:
try: #Logic pass except mysql.connector.errors.Error: #Logic pass
To use a database:
For example you are a account creating system where you are storing the data in a database named blabla, you can just add a database parameter to the connect() method ,like
mysql.connector.connect(database =
database name)
don't remove other informations like host,username,password.
Action
is a Type of Delegate provided by the .NET framework. The Action
points to a method with no parameters and does not return a value.
() =>
is lambda expression syntax. Lambda expressions are not of Type Delegate
. Invoke requires Delegate
so Action
can be used to wrap the lambda expression and provide the expected Type
to Invoke()
Invoke
causes said Action
to execute on the thread that created the Control's window handle. Changing threads is often necessary to avoid Exceptions
. For example, if one tries to set the Rtf
property on a RichTextBox
when an Invoke is necessary, without first calling Invoke, then a Cross-thread operation not valid
exception will be thrown. Check Control.InvokeRequired
before calling Invoke.
BeginInvoke
is the Asynchronous version of Invoke
. Asynchronous means the thread will not block the caller as opposed to a synchronous call which is blocking.
If you went throught alot of pain installing macos on vmware I recommend this tutorial which also provides you with all the file you need. it's straight forward tutorial and works all the way without any problem.
Two years old, but for completeness...
Standard, inline approach: (i.e. behaviour you'd get when using &
in Linux)
START /B CMD /C CALL "foo.bat" [args [...]]
Notes: 1. CALL
is paired with the .bat file because that where it usually goes.. (i.e. This is just an extension to the CMD /C CALL "foo.bat"
form to make it asynchronous. Usually, it's required to correctly get exit codes, but that's a non-issue here.); 2. Double quotes around the .bat file is only needed if the name contains spaces. (The name could be a path in which case there's more likelihood of that.).
If you don't want the output:
START /B CMD /C CALL "foo.bat" [args [...]] >NUL 2>&1
If you want the bat to be run on an independent console: (i.e. another window)
START CMD /C CALL "foo.bat" [args [...]]
If you want the other window to hang around afterwards:
START CMD /K CALL "foo.bat" [args [...]]
Note: This is actually poor form unless you have users that specifically want to use the opened window as a normal console. If you just want the window to stick around in order to see the output, it's better off putting a PAUSE
at the end of the bat file. Or even yet, add ^& PAUSE
after the command line:
START CMD /C CALL "foo.bat" [args [...]] ^& PAUSE
I know this article is ten years old and therefore probably dead, but here's what I'd try doing:
Use the IEnumerable.Skip() method, found in System.Linq. It will skip the selected element from the array, and return another copy of the array that only contains everything except the selected object. Then just repeat that for every element you want removed and after that save it to a variable.
For example, if we have an array named "Sample" (of type int[]) with 5 numbers. We want to remove the 2nd one, so trying "Sample.Skip(2);" should return the same array except without the 2nd number.
Select "File" -> "Project Structure".
Under "Project Settings" select "Project"
From there you can select the "Project SDK".
Note, as illustrated in the commit e703d7 or commit b6c2a0d (March 2014), now part of Git 2.0, you will find another naming convention (that you can apply to branches).
"When you need to use space, use dash" is a strange way to say that you must not use a space.
Because it is more common for the command line descriptions to use dashed-multi-words, you do not even want to use spaces in these places.
A branch name cannot have space (see "Which characters are illegal within a branch name?" and git check-ref-format
man page).
So for every branch name that would be represented by a multi-word expression, using a '-
' (dash) as a separator is a good idea.
If you do not want to define a separate class for nested json , Defining nested json object as JsonNode should work ,for example :
{"id":2,"socket":"0c317829-69bf-43d6-b598-7c0c550635bb","type":"getDashboard","data":{"workstationUuid":"ddec1caa-a97f-4922-833f-632da07ffc11"},"reply":true}
@JsonProperty("data")
private JsonNode data;
The answers here are worth a try, but you should also review your code. Specifically have a read of Polyfun's answer here: How to get rid of deadlock in a SQL Server 2005 and C# application?
It explains the concurrency issue, and how the usage of "with (updlock)" in your queries might correct your deadlock situation - depending really on exactly what your code is doing. If your code does follow this pattern, this is likely a better fix to make, before resorting to dirty reads, etc.
Recursion gets a bad rep, I'm always surprised by the number of developers that wont even touch recursion because someone told them it was evil incarnate.
I've learned through trial and error that when done properly recursion can be one of the fastest ways to iterate over something, it is not a steadfast rule and each language/ compiler/ engine has it's own quirks so mileage will vary.
In javascript I can reliably speed up almost any iterative process by introducing recursion with the added benefit of reducing side effects and making the code more clear concise and reusable. Also pro tip its possible to get around the stack overflow issue (and no you dont disable the warning).
My personal Pros & Cons:
Pros:
- Reduces side effects.
- Makes code more concise and easier to reason about.
- Reduces system resource usage and performs better than the traditional for loop.
Cons:
- Can lead to stack overflow.
- More complicated to setup than a traditional for loop.
Mileage will vary depending on language/ complier/ engine.
Create new project in Android studio;
Press Ctrl+Shift+Alt+S
Proceed to "Project" section
You can see actual gradle version and android pluging version. Copy that to your project.
Simply do:
mkdir /path/to/your/potentially/existing/folder
mkdir will throw an error if the folder already exists. To ignore the errors write:
mkdir -p /path/to/your/potentially/existing/folder
No need to do any checking or anything like that.
For reference:
-p, --parents no error if existing, make parent directories as needed
http://man7.org/linux/man-pages/man1/mkdir.1.html
array_values does the job :
$myArray = array_values($myArray);
Also some other php function do not preserve the keys, i.e. reset the index.
I removed the tag in the .project .
<buildCommand>
<name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
<arguments>
</arguments>
</buildCommand>
It's worked very well for me.
Just wanted to point out one thing missing in LazyOne's answer (I would have just commented under the answer but don't have enough rep)
In rule #2 for permanent redirect there is thing missing:
redirectType="Permanent"
So rule #2 should look like this:
<system.webServer>
<rewrite>
<rules>
<rule name="SpecificRedirect" stopProcessing="true">
<match url="^page$" />
<action type="Redirect" url="/page.html" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
Edit
For more information on how to use the URL Rewrite Module see this excellent documentation: URL Rewrite Module Configuration Reference
In response to @kneidels question from the comments; To match the url: topic.php?id=39
something like the following could be used:
<system.webServer>
<rewrite>
<rules>
<rule name="SpecificRedirect" stopProcessing="true">
<match url="^topic.php$" />
<conditions logicalGrouping="MatchAll">
<add input="{QUERY_STRING}" pattern="(?:id)=(\d{2})" />
</conditions>
<action type="Redirect" url="/newpage/{C:1}" appendQueryString="false" redirectType="Permanent" />
</rule>
</rules>
</rewrite>
</system.webServer>
This will match topic.php?id=ab
where a
is any number between 0-9
and b is also any number between 0-9
.
It will then redirect to /newpage/xy
where xy
comes from the original url.
I have not tested this but it should work.
They are related values, and kept consistent by the property setter/getter methods (and using the fact that frame is a purely synthesized value, not backed by an actual instance variable).
The main equations are:
frame.origin = center - bounds.size / 2
(which is the same as)
center = frame.origin + bounds.size / 2
(and there’s also)
frame.size = bounds.size
That's not code, just equations to express the invariant between the three properties. These equations also assume your view's transform is the identity, which it is by default. If it's not, then bounds and center keep the same meaning, but frame can change. Unless you're doing non-right-angle rotations, the frame will always be the transformed view in terms of the superview's coordinates.
This stuff is all explained in more detail with a useful mini-library here:
All my experience tells me that safest way of persisting enums anywhere is to use additional code value or id (some kind of evolution of @jeebee answer). This could be a nice example of an idea:
enum Race {
HUMAN ("human"),
ELF ("elf"),
DWARF ("dwarf");
private final String code;
private Race(String code) {
this.code = code;
}
public String getCode() {
return code;
}
}
Now you can go with any persistence referencing your enum constants by it's code. Even if you'll decide to change some of constant names, you always can save code value (e.g. DWARF("dwarf")
to GNOME("dwarf")
)
Ok, dive some more deeper with this conception. Here is some utility method, that helps you find any enum value, but first lets extend our approach.
interface CodeValue {
String getCode();
}
And let our enum implement it:
enum Race implement CodeValue {...}
This is the time for magic search method:
static <T extends Enum & CodeValue> T resolveByCode(Class<T> enumClass, String code) {
T[] enumConstants = enumClass.getEnumConstants();
for (T entry : enumConstants) {
if (entry.getCode().equals(code)) return entry;
}
// In case we failed to find it, return null.
// I'd recommend you make some log record here to get notified about wrong logic, perhaps.
return null;
}
And use it like a charm: Race race = resolveByCode(Race.class, "elf")
There are two ways to achieve this.
1- As already proposed u can set the background of your spinner as custom 9 patch Image with all the adjustments made into it .
android:background="@drawable/btn_dropdown"
android:clickable="true"
android:dropDownVerticalOffset="-10dip"
android:dropDownHorizontalOffset="0dip"
android:gravity="center"
If you want your Spinner to show With various different background colors i would recommend making the drop down image transparent, & loading that spinner in a relative layout with your color set in.
btn _dropdown is as:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_window_focused="false" android:state_enabled="true"
android:drawable="@drawable/spinner_default" />
<item
android:state_window_focused="false" android:state_enabled="false"
android:drawable="@drawable/spinner_default" />
<item
android:state_pressed="true"
android:drawable="@drawable/spinner_pressed" />
<item
android:state_focused="true" android:state_enabled="true"
android:drawable="@drawable/spinner_pressed" />
<item
android:state_enabled="true"
android:drawable="@drawable/spinner_default" />
<item
android:state_focused="true"
android:drawable="@drawable/spinner_pressed" />
<item
android:drawable="@drawable/spinner_default" />
</selector>
where the various states of pngwould define your various States of spinner seleti
I created .pfx file from .key and .pem files.
Like this openssl pkcs12 -inkey rootCA.key -in rootCA.pem -export -out rootCA.pfx
That's not the direct answer but still maybe it helps out someone else.
<div class="navbar navbar-default navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li><a href="#">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
</div>
and for the css
@media ( min-width: 768px ) {
.navbar > .container {
text-align: center;
}
.navbar-header,.navbar-brand,.navbar .navbar-nav,.navbar .navbar-nav > li {
float: none;
display: inline-block;
}
.collapse.navbar-collapse {
width: auto;
clear: none;
}
}
see it live http://www.bootply.com/103172
When your activity is recreated after it was previously destroyed, you can recover your saved state from the Bundle that the system passes your activity. Both the onCreate() and onRestoreInstanceState() callback methods receive the same Bundle that contains the instance state information.
Because the onCreate() method is called whether the system is creating a new instance of your activity or recreating a previous one, you must check whether the state Bundle is null before you attempt to read it. If it is null, then the system is creating a new instance of the activity, instead of restoring a previous one that was destroyed.
static final String STATE_USER = "user";
private String mUser;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Check whether we're recreating a previously destroyed instance
if (savedInstanceState != null) {
// Restore value of members from saved state
mUser = savedInstanceState.getString(STATE_USER);
} else {
// Probably initialize members with default values for a new instance
mUser = "NewUser";
}
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
savedInstanceState.putString(STATE_USER, mUser);
// Always call the superclass so it can save the view hierarchy state
super.onSaveInstanceState(savedInstanceState);
}
http://developer.android.com/training/basics/activity-lifecycle/recreating.html
I know it's not Node, but I've used Python's SimpleHTTPServer:
python -m SimpleHTTPServer [port]
It works well and comes with Python.
(1) Use str.isalpha() when you print the string.
(2) Please check below program for your reference:-
str = "this"; # No space & digit in this string
print str.isalpha() # it gives return True
str = "this is 2";
print str.isalpha() # it gives return False
Note:- I checked above example in Ubuntu.
There are multiple ways you can do this but I am not sure which one is the best practice. The first approach is you can append an iFrame in the dialog container on the fly with your given link:
$("#dialog").append($("<iframe />").attr("src", "your link")).dialog({dialogoptions});
Another would be to load the content of your external link into the dialog container using ajax.
$("#dialog").load("yourajaxhandleraddress.htm").dialog({dialogoptions});
Both works fine but depends on the external content.
The question is: How do you define if a week is in 2012 or in 2013? Your supposition, I guess, is that since 6 days of the week are in 2013, this week should be marked as the first week of 2013.
Not sure if this is the right way to go. That week started on 2012 (On monday 31th Dec), so it should be marked as the last week of 2012, therefore it should be the 53rd of 2012. The first week of 2013 should start on monday the 7th.
Now, you can handle the particular case of edge weeks (first and last week of the year) using the day of week information. It all depends on your logic.
ah homework...
So wait, you need to deduct the balance of items in stock from the total number of those items that have been ordered? I have to tell you that sounds a bit backwards. Generally I think people do it the other way round. Deduct the total number of items ordered from the balance.
If you really need to do that though... Assuming that ITEM is unique in stock_bal...
SELECT s.ITEM, SUM(m.QTY) - s.QTY AS result
FROM stock_bal s
INNER JOIN master_table m ON m.ITEM = s.ITEM
GROUP BY s.ITEM, s.QTY
Download/Install/Use VMWare Workstation and create new VM Based on your current vmdk file and then you can resize your vmdk. For details regarding this matter google for VMWare.
If you want to join the selected lines (you are in visual mode), then just press gJ
to join your lines with no spaces whatsoever.
This is described in greater detail on the vi/Vim Stack Exchange site.
Think of the window in Windows as being a struct that describes it. This struct is an internal part of Windows and you don't need to know the details of it. Instead, Windows provides a typedef for pointer to struct for that struct. That's the "handle" by which you can get hold on the window.,
It's hard to know for sure without seeing the mappings (see @Juha's comment), but I think you want something like the following:
Criteria c = session.createCriteria(Cat.class);
Criteria c2 = c.createCriteria("mother");
Criteria c3 = c2.createCriteria("kind");
c3.addOrder(Order.asc("value"));
return c.list();
There is no need to add any extra div wrapper as others suggest.
The simplest way is to wrap your input element inside a related label tag and set input style to display:block
.
Bonus point earned: now you don't need to set the labels for
attribute. Because every label target the nested input.
<form name="message" method="post">
<section>
<label class="left">
Name
<input id="name" type="text" name="name">
</label>
<label class="right">
Email
<input id="email" type="text" name="email">
</label>
</section>
</form>
if (code.indexOf("ST1")>=0) { location = "stoke central"; }
Try like this..
NameVirtualHost *:80
<VirtualHost *:80>
ServerAdmin [email protected]
ServerName www.cmsplus.dev
ServerAlias cmsplus.dev
DocumentRoot /var/www/cmsplus.dev/public
LogLevel warn
ErrorLog /var/www/cmsplus.dev/log/error.log
CustomLog /var/www/cmsplus.dev/log/access.log combined
</VirtualHost>
and add entry in /etc/hosts
127.0.0.1 www.cmsplus.dev
restart apache..
Ok, this was asked 7 years ago, but I think the best solution here is to forego the new table entirely and just do this as a custom view. That way you're not duplicating data, there's no worry about unique data, and it doesn't touch the actual database structure. Something like this:
CREATE VIEW vw_competitions
AS
SELECT
Id int
CompetitionName nvarchar(75)
CompetitionType nvarchar(50)
OtherField1 int
OtherField2 nvarchar(64) --add the fields you want viewed from the Competition table
FROM Competitions
GO
Other items can be added here like joins on other tables, WHERE clauses, etc. This is most likely the most elegant solution to this problem, as you now can just query the view:
SELECT *
FROM vw_competitions
...and add any WHERE, IN, or EXISTS clauses to the view query.
You may at times need to get different values from URL.
Below example shows different ways of extracting different parts of URL
EXAMPLE: (Sample URL)
http://localhost:60527/WebSite1test/Default2.aspx?QueryString1=1&QueryString2=2
CODE
Response.Write("<br/> " + HttpContext.Current.Request.Url.Host);
Response.Write("<br/> " + HttpContext.Current.Request.Url.Authority);
Response.Write("<br/> " + HttpContext.Current.Request.Url.Port);
Response.Write("<br/> " + HttpContext.Current.Request.Url.AbsolutePath);
Response.Write("<br/> " + HttpContext.Current.Request.ApplicationPath);
Response.Write("<br/> " + HttpContext.Current.Request.Url.AbsoluteUri);
Response.Write("<br/> " + HttpContext.Current.Request.Url.PathAndQuery);
OUTPUT
localhost
localhost:60527
60527
/WebSite1test/Default2.aspx
/WebSite1test
http://localhost:60527/WebSite1test/Default2.aspx?QueryString1=1&QueryString1=2
/WebSite1test/Default2.aspx?QueryString1=1&QueryString2=2
You can copy paste above sample code & run it in asp.net web form application with different URL.
I also recommend reading ASP.Net Routing in case you may use ASP Routing then you don't need to use traditional URL with query string.
http://msdn.microsoft.com/en-us/library/cc668201%28v=vs.100%29.aspx
string str = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";
str = str.Replace("@", Environment.NewLine);
richTextBox1.Text = str;
If you are using Kotlin for Android development then you can add TextChangedListener()
using this code:
myTextField.addTextChangedListener(object : TextWatcher{
override fun afterTextChanged(s: Editable?) {}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {}
})
Please note that the proposed code is only valid with Python 2
Here is an example:
from Tkinter import * # from x import * is bad practice
from ttk import *
# http://tkinter.unpythonic.net/wiki/VerticalScrolledFrame
class VerticalScrolledFrame(Frame):
"""A pure Tkinter scrollable frame that actually works!
* Use the 'interior' attribute to place widgets inside the scrollable frame
* Construct and pack/place/grid normally
* This frame only allows vertical scrolling
"""
def __init__(self, parent, *args, **kw):
Frame.__init__(self, parent, *args, **kw)
# create a canvas object and a vertical scrollbar for scrolling it
vscrollbar = Scrollbar(self, orient=VERTICAL)
vscrollbar.pack(fill=Y, side=RIGHT, expand=FALSE)
canvas = Canvas(self, bd=0, highlightthickness=0,
yscrollcommand=vscrollbar.set)
canvas.pack(side=LEFT, fill=BOTH, expand=TRUE)
vscrollbar.config(command=canvas.yview)
# reset the view
canvas.xview_moveto(0)
canvas.yview_moveto(0)
# create a frame inside the canvas which will be scrolled with it
self.interior = interior = Frame(canvas)
interior_id = canvas.create_window(0, 0, window=interior,
anchor=NW)
# track changes to the canvas and frame width and sync them,
# also updating the scrollbar
def _configure_interior(event):
# update the scrollbars to match the size of the inner frame
size = (interior.winfo_reqwidth(), interior.winfo_reqheight())
canvas.config(scrollregion="0 0 %s %s" % size)
if interior.winfo_reqwidth() != canvas.winfo_width():
# update the canvas's width to fit the inner frame
canvas.config(width=interior.winfo_reqwidth())
interior.bind('<Configure>', _configure_interior)
def _configure_canvas(event):
if interior.winfo_reqwidth() != canvas.winfo_width():
# update the inner frame's width to fill the canvas
canvas.itemconfigure(interior_id, width=canvas.winfo_width())
canvas.bind('<Configure>', _configure_canvas)
if __name__ == "__main__":
class SampleApp(Tk):
def __init__(self, *args, **kwargs):
root = Tk.__init__(self, *args, **kwargs)
self.frame = VerticalScrolledFrame(root)
self.frame.pack()
self.label = Label(text="Shrink the window to activate the scrollbar.")
self.label.pack()
buttons = []
for i in range(10):
buttons.append(Button(self.frame.interior, text="Button " + str(i)))
buttons[-1].pack()
app = SampleApp()
app.mainloop()
It does not yet have the mouse wheel bound to the scrollbar but it is possible. Scrolling with the wheel can get a bit bumpy, though.
edit:
to 1)
IMHO scrolling frames is somewhat tricky in Tkinter and does not seem to be done a lot. It seems there is no elegant way to do it.
One problem with your code is that you have to set the canvas size manually - that's what the example code I posted solves.
to 2)
You are talking about the data function? Place works for me, too. (In general I prefer grid).
to 3)
Well, it positions the window on the canvas.
One thing I noticed is that your example handles mouse wheel scrolling by default while the one I posted does not. Will have to look at that some time.
An other approach using borders and no CSS3 properties :
div, div:after{_x000D_
border-width: 80px 0 80px 80px;_x000D_
border-color: transparent transparent transparent #000;_x000D_
border-style:solid;_x000D_
position:relative;_x000D_
}_x000D_
div:after{_x000D_
content:'';_x000D_
position:absolute;_x000D_
left:-115px; top:-80px;_x000D_
border-left-color:#fff;_x000D_
}
_x000D_
<div></div>
_x000D_
Keep track of your index: That's how it is done in Java:
int index = 0;
for (Element song: question){
// Do whatever
index++;
}
Technically, and from Comintern's accepted workaround,
I believe you actually want to Delete all the Cells in the Sheet. Which removes Formatting (See footnote for exceptions), etc. as well as the Cells Contents.
I.e. Sheets("Zeroes").Cells.Delete
Combined also with UsedRange, ScreenUpdating and Calculation skipping it should be nearly intantaneous:
Sub DeleteCells ()
Application.Calculation = XlManual
Application.ScreenUpdating = False
Sheets("Zeroes").UsedRange.Delete
Application.ScreenUpdating = True
Application.Calculation = xlAutomatic
End Sub
Or if you prefer to respect the Calculation State Excel is currently in:
Sub DeleteCells ()
Dim SaveCalcState
SaveCalcState = Application.Calculation
Application.Calculation = XlManual
Application.ScreenUpdating = False
Sheets("Zeroes").UsedRange.Delete
Application.ScreenUpdating = True
Application.Calculation = SaveCalcState
End Sub
Footnote: If formatting was applied for an Entire Column, then it is not deleted. This includes Font Colour, Fill Colour and Borders, the Format Category (like General, Date, Text, Etc.) and perhaps other properties too, but
Conditional formatting IS deleted, as is Entire Row formatting.
(Entire Column formatting is quite useful if you are importing raw data repeatedly to a sheet as it will conform to the Formats originally applied if a simple Paste-Values-Only type import is done.)
just put a breakpoint on the last curly bracket of main.
int main () {
//...your code...
return 0;
} //<- breakpoint here
it works for me, no need to run without debugging. It also executes destructors before hitting the breakpoint so you can check any messages print on these destructors if you have any.
Use the instanceof
operator:
if(a instanceof MyClass)
{
//do something
}
Since java 7 you can the java.nio package to achieve the same result:
Path dir = ...;
List<File> files = new ArrayList<>();
try (DirectoryStream<Path> stream = Files.newDirectoryStream(dir, "*.{java,class,jar}")) {
for (Path entry: stream) {
files.add(entry.toFile());
}
return files;
} catch (IOException x) {
throw new RuntimeException(String.format("error reading folder %s: %s",
dir,
x.getMessage()),
x);
}
For those who are using Visual Studio 2017 version, it seems like the preprocessor definition required to run unsafe operations has changed. Use instead:
#define _CRT_SECURE_NO_WARNINGS
It will compile then.
\r
can do the work here for you.
To extend upon the answer and comment by Yiannis Xanthopoulos and Hot Licks (sorry, I cannot comment yet!), you can set VM options like this example:
-XX:+UseG1GC -XX:MinHeapFreeRatio=15 -XX:MaxHeapFreeRatio=30
In my jdk 7 this will then release unused VM memory if more than 30% of the heap becomes free after GC when the VM is idle. You will probably need to tune these parameters.
While I didn't see it emphasized in the link below, note that some garbage collectors may not obey these parameters and by default java may pick one of these for you, should you happen to have more than one core (hence the UseG1GC argument above).
Update: For java 1.8.0_73 I have seen the JVM occasionally release small amounts with the default settings. Appears to only do it if ~70% of the heap is unused though.. don't know if it would be more aggressive releasing if the OS was low on physical memory.
i tought it's because the connection but i use this:
git push --force origin master
As of 2018,
use MiniCssExtractPlugin
for Webpack(> 4.0) will solve this problem.
https://github.com/webpack-contrib/mini-css-extract-plugin
Using extract-text-webpack-plugin
in the accepted answer is NOT recommended for Webpack 4.0+.
I used
System.Data.Linq.SqlClient.SqlMethods.Like(row.Name, "test")
in my query.
This performs a case-insensitive comparison.
lubos hasko's method fails for nullables. The method below will work for nullables. I didn't come up with it, though. I found it via Google: http://web.archive.org/web/20101214042641/http://dogaoztuzun.com/post/C-Generic-Type-Conversion.aspx Credit to "Tuna Toksoz"
Usage first:
TConverter.ChangeType<T>(StringValue);
The class is below.
public static class TConverter
{
public static T ChangeType<T>(object value)
{
return (T)ChangeType(typeof(T), value);
}
public static object ChangeType(Type t, object value)
{
TypeConverter tc = TypeDescriptor.GetConverter(t);
return tc.ConvertFrom(value);
}
public static void RegisterTypeConverter<T, TC>() where TC : TypeConverter
{
TypeDescriptor.AddAttributes(typeof(T), new TypeConverterAttribute(typeof(TC)));
}
}
please, something went xxx*x, and that's not true at all, check that
JButton Size - java.awt.Dimension[width=400,height=40]
JPanel Size - java.awt.Dimension[width=640,height=480]
JFrame Size - java.awt.Dimension[width=646,height=505]
code (basic stuff from Trail: Creating a GUI With JFC/Swing , and yet I still satisfied that that would be outdated )
EDIT: forget setDefaultCloseOperation()
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class FrameSize {
private JFrame frm = new JFrame();
private JPanel pnl = new JPanel();
private JButton btn = new JButton("Get ScreenSize for JComponents");
public FrameSize() {
btn.setPreferredSize(new Dimension(400, 40));
btn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println("JButton Size - " + btn.getSize());
System.out.println("JPanel Size - " + pnl.getSize());
System.out.println("JFrame Size - " + frm.getSize());
}
});
pnl.setPreferredSize(new Dimension(640, 480));
pnl.add(btn, BorderLayout.SOUTH);
frm.add(pnl, BorderLayout.CENTER);
frm.setLocation(150, 100);
frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // EDIT
frm.setResizable(false);
frm.pack();
frm.setVisible(true);
}
public static void main(String[] args) {
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
FrameSize fS = new FrameSize();
}
});
}
}
If your code is prepared to deal with overflow errors, you can throw an exception if data
is too large.
size_t data = 99999999;
if ( data > INT_MAX )
{
throw std::overflow_error("data is larger than INT_MAX");
}
int convertData = static_cast<int>(data);
There's opencv
for python (documentation here).
import cv2
import numpy as np
img = ... # Your image as a numpy array
cv2.imwrite("filename.png", img)
useful if you need to do more processing other than saving.
If you want to remove all pending tasks and also the active and reserved ones to completely stop Celery, this is what worked for me:
from proj.celery import app
from celery.task.control import inspect, revoke
# remove pending tasks
app.control.purge()
# remove active tasks
i = inspect()
jobs = i.active()
for hostname in jobs:
tasks = jobs[hostname]
for task in tasks:
revoke(task['id'], terminate=True)
# remove reserved tasks
jobs = i.reserved()
for hostname in jobs:
tasks = jobs[hostname]
for task in tasks:
revoke(task['id'], terminate=True)
ALTER FUNCTION [dbo].[split_string](
@delimited NVARCHAR(MAX),
@delimiter NVARCHAR(100)
) RETURNS @t TABLE (id INT IDENTITY(1,1), val NVARCHAR(MAX))
AS
BEGIN
DECLARE @xml XML
SET @xml = N'<t>' + REPLACE(@delimited,@delimiter,'</t><t>') + '</t>'
INSERT INTO @t(val)
SELECT r.value('.','varchar(MAX)') as item
FROM @xml.nodes('/t') as records(r)
RETURN
END
Per MDN:
Object.assign({}, a)
JSON.parse(JSON.stringify(a))
There is no need for external libraries but you need to check browser compatibility first.
You can use:
@foreach (var item in Model)
{
...
@Html.DisplayFor(modelItem => item.address + " " + item.city)
...
ulimit max memory size and virtual memory set to unlimited?
MobileSafari supports the orientationchange
event on the window
object. Unfortunately there doesn't seem to be a way to directly control the zoom via JavaScript. Perhaps you could dynamically write/change the meta
tag which controls the viewport — but I doubt that would work, it only affects the initial state of the page. Perhaps you could use this event to actually resize your content using CSS. Good luck!
Here is the way works for me.
mysql> show databases ;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> uninstall plugin validate_password;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> alter user 'root'@'localhost' identified by 'root';
Query OK, 0 rows affected (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.03 sec)
These days something like the following will suffice:
HttpHeaders headers = new HttpHeaders();
headers.setBearerAuth(accessToken);
restTemplate.exchange(RequestEntity.get(new URI(url)).headers(headers).build(), returnType);
I created a more comprehensive and cleaner version that some people might find useful for remembering which name corresponds to which value. I used Chrome Dev Tool's color code and labels are organized symmetrically to pick up analogies faster:
Note 1: clientLeft
also includes the width of the vertical scroll
bar if the direction of the text is set to right-to-left (since the
bar is displayed to the left in that case)
Note 2: the outermost line represents the closest positioned parent
(an element whose position
property is set to a value different than
static
or initial
). Thus, if the direct container isn’t a positioned
element, then the line doesn’t represent the first container in
the hierarchy but another element higher in the hierarchy. If no
positioned parent is found, the browser will take the html
or body
element as reference
Hope somebody finds it useful, just my 2 cents ;)
System.Data.SqlClient
is the .NET Framework Data Provider for SQL Server. ie .NET library for SQL Server.
I don't know where providerName=SqlServer
comes from. Could you be getting this confused with the provider keyword in your connection string? (I know I was :) )
In the web.config you should have the System.Data.SqlClient
as the value of the providerName attribute. It is the .NET Framework Data Provider you are using.
<connectionStrings>
<add
name="LocalSqlServer"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true"
providerName="System.Data.SqlClient"
/>
</connectionStrings>
See http://msdn.microsoft.com/en-US/library/htw9h4z3(v=VS.80).aspx
>>> command = "echo a; echo b"
>>> shlex.split(command);
['echo', 'a; echo', 'b']
so, the problem is shlex module do not handle ";"
AndroidManifest.xml
example:
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name="com.pritesh.resourceidentifierexample.MainActivity"
android:label="@string/app_name"
android:launchMode="singleTask">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<!--<category android:name="android.intent.category.LAUNCHER"/>-->
</intent-filter>
</activity>
<activity-alias android:label="RED"
android:icon="@drawable/ic_android_red"
android:name="com.pritesh.resourceidentifierexample.MainActivity-Red"
android:enabled="true"
android:targetActivity="com.pritesh.resourceidentifierexample.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
<activity-alias android:label="GREEN"
android:icon="@drawable/ic_android_green"
android:name="com.pritesh.resourceidentifierexample.MainActivity-Green"
android:enabled="false"
android:targetActivity="com.pritesh.resourceidentifierexample.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
<activity-alias android:label="BLUE"
android:icon="@drawable/ic_android_blue"
android:name="com.pritesh.resourceidentifierexample.MainActivity-Blue"
android:enabled="false"
android:targetActivity="com.pritesh.resourceidentifierexample.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity-alias>
</application>
Then follow below given code in MainActivity
:
ImageView imageView = (ImageView)findViewById(R.id.imageView);
int imageResourceId;
String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
int hours = new Time(System.currentTimeMillis()).getHours();
Log.d("DATE", "onCreate: " + hours);
getPackageManager().setComponentEnabledSetting(
getComponentName(), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP);
if(hours == 13)
{
imageResourceId = this.getResources().getIdentifier("ic_android_red", "drawable", this.getPackageName());
getPackageManager().setComponentEnabledSetting(
new ComponentName("com.pritesh.resourceidentifierexample", "com.pritesh.resourceidentifierexample.MainActivity-Red"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
}else if(hours == 14)
{
imageResourceId = this.getResources().getIdentifier("ic_android_green", "drawable", this.getPackageName());
getPackageManager().setComponentEnabledSetting(
new ComponentName("com.pritesh.resourceidentifierexample", "com.pritesh.resourceidentifierexample.MainActivity-Green"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
}else
{
imageResourceId = this.getResources().getIdentifier("ic_android_blue", "drawable", this.getPackageName());
getPackageManager().setComponentEnabledSetting(
new ComponentName("com.pritesh.resourceidentifierexample", "com.pritesh.resourceidentifierexample.MainActivity-Blue"),
PackageManager.COMPONENT_ENABLED_STATE_ENABLED, PackageManager.DONT_KILL_APP);
}
imageView.setImageResource(imageResourceId);
Try this-
CREATE PROCEDURE simpleproc (IN name varchar(50),IN user_name varchar(50),IN branch varchar(50))
BEGIN
insert into student (name,user_name,branch) values (name ,user_name,branch);
END
If it helps anyone, I was having an issue where I wanted to treat an object as another type with a similar interface. I attempted the following:
Didn't pass linting
const x = new Obj(a as b);
The linter was complaining that a
was missing properties that existed on b
. In other words, a
had some properties and methods of b
, but not all. To work around this, I followed VS Code's suggestion:
Passed linting and testing
const x = new Obj(a as unknown as b);
Note that if your code attempts to call one of the properties that exists on type b
that is not implemented on type a
, you should realize a runtime fault.
If you can use PL/SQL, try (EDIT: Incorporates Neil's xlnt suggestion to start at next higher value):
SELECT 'CREATE SEQUENCE transaction_sequence MINVALUE 0 START WITH '||MAX(trans_seq_no)+1||' INCREMENT BY 1 CACHE 20'
INTO v_sql
FROM transaction_log;
EXECUTE IMMEDIATE v_sql;
Another point to consider: By setting the CACHE parameter to 20, you run the risk of losing up to 19 values in your sequence if the database goes down. CACHEd values are lost on database restarts. Unless you're hitting the sequence very often, or, you don't care that much about gaps, I'd set it to 1.
One final nit: the values you specified for CACHE and INCREMENT BY are the defaults. You can leave them off and get the same result.
You're missing an ending anchor.
if(Regex.IsMatch(myString, "^[A-Za-z]{2}[0-9]{2}\z")) {
// ...
}
EDIT: If you can have anything between an initial 2 letters and a final 2 numbers:
if(Regex.IsMatch(myString, @"^[A-Za-z]{2}.*\d{2}\z")) {
// ...
}
There is a very good case for using "adding existing file links" when reusing code across projects, and that is when you need to reference and support different versions of dependent libraries.
Making multiple assemblies with references to different external assemblies isn't easy to do otherwise without duplicating your code, or utilizing tricks with source code control.
I believe that it's easiest to maintain one project for development and unit test, then to create 'build' projects using existing file links when you need to create the assemblies which reference different versions of those external assemblies.
As mentioned by @marc_s, @Cloud, et al. they're basically the same for a closed range.
But any fractional time values may cause issues with a closed range (greater-or-equal and less-or-equal) as opposed to a half-open range (greater-or-equal and less-than) with an end value after the last possible instant.
So to avoid that the query should be rewritten as:
SELECT EventId, EventName
FROM EventMaster
WHERE (EventDate >= '2009-10-15' AND
EventDate < '2009-10-19') /* <<<== 19th, not 18th */
Since BETWEEN
doesn't work for half-open intervals I always take a hard look at any date/time query that uses it, since its probably an error.
You can add the src
folder to build path by:
src
folder.And you are done. Hope this help.
EDIT: Refer to the Eclipse documentation
<html>
<body onload = "load()">
<script>
function load(){
try {
var ax = new ActiveXObject("WScript.Network");
alert('User: ' + ax.UserName );
alert('Computer: ' + ax.ComputerName);
}
catch (e) {
document.write('Permission to access computer name is denied' + '<br />');
}
}
</script>
</body>
</html>
That is not an error; the make command in unix works based on the timestamps. I.e let's say if you have made certain changes to factorial.cpp
and compile using make
then make shows
the information that only the cc -o factorial.cpp
command is executed. Next time if you execute the same command i.e make
without making any changes to any file with .cpp
extension the compiler says that the output file is up to date. The compiler gives this information until we make certain changes to any file.cpp
.
The advantage of the makefile
is that it reduces the recompiling time by compiling the only files that are modified and by using the object (.o
) files of the unmodified files directly.
In my particular project I couldn't get it to work, and used declare var $;
. Not a clean/recommended solution, it doesnt recognise the JQuery variables, but I had no errors after using that (and had to for my automatic builds to succeed).
Jrad solution is good but I don't like that he doesn't use array copy. Internally System.arraycopy() does a native call so you will a get faster results.
public static int[] addPos(int[] a, int index, int num) {
int[] result = new int[a.length];
System.arraycopy(a, 0, result, 0, index);
System.arraycopy(a, index, result, index + 1, a.length - index - 1);
result[index] = num;
return result;
}
In Linux, this information is available in the /proc file system. I'm not a big fan of the text file format used, as each Linux distribution seems to customize at least one important file. A quick look as the source to 'ps' reveals the mess.
But here is where to find the information you seek:
/proc/meminfo contains the majority of the system-wide information you seek. Here it looks like on my system; I think you are interested in MemTotal, MemFree, SwapTotal, and SwapFree:
Anderson cxc # more /proc/meminfo
MemTotal: 4083948 kB
MemFree: 2198520 kB
Buffers: 82080 kB
Cached: 1141460 kB
SwapCached: 0 kB
Active: 1137960 kB
Inactive: 608588 kB
HighTotal: 3276672 kB
HighFree: 1607744 kB
LowTotal: 807276 kB
LowFree: 590776 kB
SwapTotal: 2096440 kB
SwapFree: 2096440 kB
Dirty: 32 kB
Writeback: 0 kB
AnonPages: 523252 kB
Mapped: 93560 kB
Slab: 52880 kB
SReclaimable: 24652 kB
SUnreclaim: 28228 kB
PageTables: 2284 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 4138412 kB
Committed_AS: 1845072 kB
VmallocTotal: 118776 kB
VmallocUsed: 3964 kB
VmallocChunk: 112860 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
Hugepagesize: 2048 kB
For CPU utilization, you have to do a little work. Linux makes available overall CPU utilization since system start; this probably isn't what you are interested in. If you want to know what the CPU utilization was for the last second, or 10 seconds, then you need to query the information and calculate it yourself.
The information is available in /proc/stat, which is documented pretty well at http://www.linuxhowtos.org/System/procstat.htm; here is what it looks like on my 4-core box:
Anderson cxc # more /proc/stat
cpu 2329889 0 2364567 1063530460 9034 9463 96111 0
cpu0 572526 0 636532 265864398 2928 1621 6899 0
cpu1 590441 0 531079 265949732 4763 351 8522 0
cpu2 562983 0 645163 265796890 682 7490 71650 0
cpu3 603938 0 551790 265919440 660 0 9040 0
intr 37124247
ctxt 50795173133
btime 1218807985
processes 116889
procs_running 1
procs_blocked 0
First, you need to determine how many CPUs (or processors, or processing cores) are available in the system. To do this, count the number of 'cpuN' entries, where N starts at 0 and increments. Don't count the 'cpu' line, which is a combination of the cpuN lines. In my example, you can see cpu0 through cpu3, for a total of 4 processors. From now on, you can ignore cpu0..cpu3, and focus only on the 'cpu' line.
Next, you need to know that the fourth number in these lines is a measure of idle time, and thus the fourth number on the 'cpu' line is the total idle time for all processors since boot time. This time is measured in Linux "jiffies", which are 1/100 of a second each.
But you don't care about the total idle time; you care about the idle time in a given period, e.g., the last second. Do calculate that, you need to read this file twice, 1 second apart.Then you can do a diff of the fourth value of the line. For example, if you take a sample and get:
cpu 2330047 0 2365006 1063853632 9035 9463 96114 0
Then one second later you get this sample:
cpu 2330047 0 2365007 1063854028 9035 9463 96114 0
Subtract the two numbers, and you get a diff of 396, which means that your CPU had been idle for 3.96 seconds out of the last 1.00 second. The trick, of course, is that you need to divide by the number of processors. 3.96 / 4 = 0.99, and there is your idle percentage; 99% idle, and 1% busy.
In my code, I have a ring buffer of 360 entries, and I read this file every second. That lets me quickly calculate the CPU utilization for 1 second, 10 seconds, etc., all the way up to 1 hour.
For the process-specific information, you have to look in /proc/pid; if you don't care abut your pid, you can look in /proc/self.
CPU used by your process is available in /proc/self/stat. This is an odd-looking file consisting of a single line; for example:
19340 (whatever) S 19115 19115 3084 34816 19115 4202752 118200 607 0 0 770 384 2
7 20 0 77 0 266764385 692477952 105074 4294967295 134512640 146462952 321468364
8 3214683328 4294960144 0 2147221247 268439552 1276 4294967295 0 0 17 0 0 0 0
The important data here are the 13th and 14th tokens (0 and 770 here). The 13th token is the number of jiffies that the process has executed in user mode, and the 14th is the number of jiffies that the process has executed in kernel mode. Add the two together, and you have its total CPU utilization.
Again, you will have to sample this file periodically, and calculate the diff, in order to determine the process's CPU usage over time.
Edit: remember that when you calculate your process's CPU utilization, you have to take into account 1) the number of threads in your process, and 2) the number of processors in the system. For example, if your single-threaded process is using only 25% of the CPU, that could be good or bad. Good on a single-processor system, but bad on a 4-processor system; this means that your process is running constantly, and using 100% of the CPU cycles available to it.
For the process-specific memory information, you ahve to look at /proc/self/status, which looks like this:
Name: whatever
State: S (sleeping)
Tgid: 19340
Pid: 19340
PPid: 19115
TracerPid: 0
Uid: 0 0 0 0
Gid: 0 0 0 0
FDSize: 256
Groups: 0 1 2 3 4 6 10 11 20 26 27
VmPeak: 676252 kB
VmSize: 651352 kB
VmLck: 0 kB
VmHWM: 420300 kB
VmRSS: 420296 kB
VmData: 581028 kB
VmStk: 112 kB
VmExe: 11672 kB
VmLib: 76608 kB
VmPTE: 1244 kB
Threads: 77
SigQ: 0/36864
SigPnd: 0000000000000000
ShdPnd: 0000000000000000
SigBlk: fffffffe7ffbfeff
SigIgn: 0000000010001000
SigCgt: 20000001800004fc
CapInh: 0000000000000000
CapPrm: 00000000ffffffff
CapEff: 00000000fffffeff
Cpus_allowed: 0f
Mems_allowed: 1
voluntary_ctxt_switches: 6518
nonvoluntary_ctxt_switches: 6598
The entries that start with 'Vm' are the interesting ones:
The only item I'm not sure about is Swapspace currently used by my process. I don't know if this is available.
Relation in User model:
public function photos()
{
return $this->hasMany('Photo');
}
Delete record and related:
$user = User::find($id);
// delete related
$user->photos()->delete();
$user->delete();
First of all, I need to say that sample from Sionnach733 worked flawlessly. Some users complain about absent of actual examples. Here is my two cents. I've been working on mouse click simulation when using this site: https://www.youtube.com/tv. You can open any video and try run this code. It performs switch to next video.
function triggerEvent(el, type, keyCode) {
if ('createEvent' in document) {
// modern browsers, IE9+
var e = document.createEvent('HTMLEvents');
e.keyCode = keyCode;
e.initEvent(type, false, true);
el.dispatchEvent(e);
} else {
// IE 8
var e = document.createEventObject();
e.keyCode = keyCode;
e.eventType = type;
el.fireEvent('on'+e.eventType, e);
}
}
var nextButton = document.getElementsByClassName('icon-player-next')[0];
triggerEvent(nextButton, 'keyup', 13); // simulate mouse/enter key press
curses
will allow you to use colors properly for the type of terminal that is being used.
I believe in your case something like
sort -t@ -k1.1,1.4 -k1.5,1.7 ... <inputfile
will work better. @ is the field separator, make sure it is a character that appears nowhere. then your input is considered as consisting of one column.
Edit: apparently clintp already gave a similar answer, sorry. As he points out, the flags 'n' and 'r' can be added to every -k.... option.
There is nothing wrong with the idea of modifying an element inside a list while traversing it (don't modify the list itself, that's not recommended), but it can be better expressed like this:
for (int i = 0; i < letters.size(); i++) {
letters.set(i, "D");
}
At the end the whole list will have the letter "D"
as its content. It's not a good idea to use an enhanced for
loop in this case, you're not using the iteration variable for anything, and besides you can't modify the list's contents using the iteration variable.
Notice that the above snippet is not modifying the list's structure - meaning: no elements are added or removed and the lists' size remains constant. Simply replacing one element by another doesn't count as a structural modification. Here's the link to the documentation quoted by @ZouZou in the comments, it states that:
A structural modification is any operation that adds or deletes one or more elements, or explicitly resizes the backing array; merely setting the value of an element is not a structural modification
The best workaround for reading CSV files with UTF-8 on Mac is to convert them into XLSX format. I have found a script made by Konrad Foerstner, which I have improved little bit by adding support for different delimiter characters.
Download the script from Github https://github.com/brablc/clit/blob/master/csv2xlsx.py. In order to run it you will need to install a python module openpyxl for Excel file manipulation: sudo easy_install openpyxl
.
You want to iterate through the list, sum all the numbers, and then divide the sum by the number of elements in the list. You can use a for loop to accomplish this.
average = 0
sum = 0
for n in numbers:
sum = sum + n
average = sum / len(numbers)
The for loop looks at each element in the list, and then adds it to the current sum. You then divide by the length of the list (or the number of elements in the list) to find the average.
I would recommend googling a python reference to find out how to use common programming concepts like loops and conditionals so that you feel comfortable when starting out. There are lots of great resources online that you could look up.
Good luck!
This works for me on all my browsers:
.shadow {
-moz-box-shadow: 0 0 30px 5px #999;
-webkit-box-shadow: 0 0 30px 5px #999;
}
then just give any div the shadow class, no jQuery required.
You can write JavaScript code in your file .
Put following code in your client side file:
<script>
window.onload = function(){
window.open(url, "_blank"); // will open new tab on window.onload
}
</script>
using jQuery.ready
<script>
$(document).ready(function(){
window.open(url, "_blank"); // will open new tab on document ready
});
</script>
Try with:
<repositories>
<!-- Repository for ORACLE ojdbc6. -->
<repository>
<id>codelds</id>
<url>https://code.lds.org/nexus/content/groups/main-repo</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.3</version>
</dependency>
</dependencies>
Note that the TIMEDIFF()
solution only works when the datetimes
are less than 35 days apart!
TIMEDIFF()
returns a TIME
datatype, and the max value for TIME is 838:59:59 hours (=34,96 days)
The below code works magic.
SQLALCHEMY_DATABASE_URI = "mssql+pyodbc://<servername>/<dbname>?driver=SQL Server Native Client 11.0?trusted_connection=yes?UID" \
"=<db_name>?PWD=<pass>"
Python 2.7 :
x = None
isinstance(x, type(None))
or
isinstance(None, type(None))
==> True
Here is my simple solution:
If you have python2 and python3 both installed in your system, the pip upgrade will point to python2 by default. Hence, we must specify the version of python(python3) and use the below command:
python3 -m pip install --upgrade pip
This command will uninstall the previously installed pip and install the new version- upgrading your pip.
This will save memory and declutter your system.
Use libraries https://jar-download.com/maven-repository-class-search.php?search_box=org.apache.http.entity.mime Download the library and put it in your project
You can send data through JSON or via normal POST, here is an example for JSON.
var value1 = 1;
var value2 = 2;
var value3 = 3;
$.ajax({
type: "POST",
contentType: "application/json; charset=utf-8",
url: "yoururlhere",
data: { data1: value1, data2: value2, data3: value3 },
success: function (result) {
// do something here
}
});
If you want to use it via normal post try this
$.ajax({
type: "POST",
url: $('form').attr("action"),
data: $('#form0').serialize(),
success: function (result) {
// do something here
}
});
You can pass PHP Variables to your JavaScript by generating it with PHP:
<?php
$someVar = 1;
?>
<script type="text/javascript">
var javaScriptVar = "<?php echo $someVar; ?>";
</script>
Johan is close - it depends on the hardware manufacturer. For example, Samsung Galaxy S phones uses Samsung RFS (proprietary). However, the Nexus S (also made by Samsung) with Android 2.3 uses Ext4 (presumably because Google told them to - the Nexus S is the current Google experience phone). Many community developers have also started moving to Ext4 because of this shift.
Edit: Now compatible with MSVC, C++ and non-GNU compilers (see end).
The question was "most efficient way." The OP doesn't specify platform, he could be compiling for a RISC based ATMEL chip with 256 bytes of flash storage for his code.
For the record, and for those (like me), who appreciate the difference between "the easiest way" and the "most efficient way", and who enjoy learning...
static const long hextable[] = {
[0 ... 255] = -1, // bit aligned access into this table is considerably
['0'] = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, // faster for most modern processors,
['A'] = 10, 11, 12, 13, 14, 15, // for the space conscious, reduce to
['a'] = 10, 11, 12, 13, 14, 15 // signed char.
};
/**
* @brief convert a hexidecimal string to a signed long
* will not produce or process negative numbers except
* to signal error.
*
* @param hex without decoration, case insensitive.
*
* @return -1 on error, or result (max (sizeof(long)*8)-1 bits)
*/
long hexdec(unsigned const char *hex) {
long ret = 0;
while (*hex && ret >= 0) {
ret = (ret << 4) | hextable[*hex++];
}
return ret;
}
It requires no external libraries, and it should be blindingly fast. It handles uppercase, lowercase, invalid characters, odd-sized hex input (eg: 0xfff), and the maximum size is limited only by the compiler.
For non-GCC or C++ compilers or compilers that will not accept the fancy hextable declaration.
Replace the first statement with this (longer, but more conforming) version:
static const long hextable[] = {
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1, 0,1,2,3,4,5,6,7,8,9,-1,-1,-1,-1,-1,-1,-1,10,11,12,13,14,15,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
};
MartinVonMartinsgrün and 4Levels methods confirmed work great on Mac OS X Mountain Lion.
The file I needed to update was ~/.profile.
However, I couldn't leave this question without recommending my favorite application, iTerm 2.
iTerm 2 lets you load global color schemes from a file. Really easy to experiment and try a bunch of color schemes.
Here's a screenshot of the iTerm 2 window and the color preferences.
Once I added the following to my ~/.profile file iTerm 2 was able to override the colors.
export CLICOLOR=1
export LSCOLORS=GxFxCxDxBxegedabagaced
export PS1='\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
Here is a great repository with some nice presets:
iTerm2 Color Schemes on Github by mbadolato
Bonus: Choose "Show/hide iTerm2 with a system-wide hotkey" and bind the key with BetterTouchTool for an instant hide/show the terminal with a mouse gesture.
you can write this line into Controller
json.MaxJsonLength = 2147483644;
you can also write this line into web.config
<configuration>
<system.web.extensions>
<scripting>
<webServices>
<jsonSerialization maxJsonLength="2147483647">
</jsonSerialization>
</webServices>
</scripting>
</system.web.extensions>
`
To be on the safe side, use both.
Killing Excel is not always easy; see this article: 50 Ways to Kill Excel
This article takes the best advice from Microsoft (MS Knowlege Base Article) on how to get Excel to quit nicely, but then also makes sure about it by killing the process if necessary. I like having a second parachute.
Make sure to Close any open workbooks, Quit the application and Release the xlApp object. Finally check to see if the process is still alive and if so then kill it.
This article also makes sure that we don't kill all Excel processes but only kills the exact process that was started.
See also Get Process from Window Handle
Here is the code I use: (works every time)
Sub UsingExcel()
'declare process; will be used later to attach the Excel process
Dim XLProc As Process
'call the sub that will do some work with Excel
'calling Excel in a separate routine will ensure that it is
'out of scope when calling GC.Collect
'this works better especially in debug mode
DoOfficeWork(XLProc)
'Do garbage collection to release the COM pointers
'http://support.microsoft.com/kb/317109
GC.Collect()
GC.WaitForPendingFinalizers()
'I prefer to have two parachutes when dealing with the Excel process
'this is the last answer if garbage collection were to fail
If Not XLProc Is Nothing AndAlso Not XLProc.HasExited Then
XLProc.Kill()
End If
End Sub
'http://msdn.microsoft.com/en-us/library/ms633522%28v=vs.85%29.aspx
<System.Runtime.InteropServices.DllImport("user32.dll", SetLastError:=True)> _
Private Shared Function GetWindowThreadProcessId(ByVal hWnd As IntPtr, _
ByRef lpdwProcessId As Integer) As Integer
End Function
Private Sub ExcelWork(ByRef XLProc As Process)
'start the application using late binding
Dim xlApp As Object = CreateObject("Excel.Application")
'or use early binding
'Dim xlApp As Microsoft.Office.Interop.Excel
'get the window handle
Dim xlHWND As Integer = xlApp.hwnd
'this will have the process ID after call to GetWindowThreadProcessId
Dim ProcIdXL As Integer = 0
'get the process ID
GetWindowThreadProcessId(xlHWND, ProcIdXL)
'get the process
XLProc = Process.GetProcessById(ProcIdXL)
'do some work with Excel here using xlApp
'be sure to save and close all workbooks when done
'release all objects used (except xlApp) using NAR(x)
'Quit Excel
xlApp.quit()
'Release
NAR(xlApp)
End Sub
Private Sub NAR(ByVal o As Object)
'http://support.microsoft.com/kb/317109
Try
While (System.Runtime.InteropServices.Marshal.ReleaseComObject(o) > 0)
End While
Catch
Finally
o = Nothing
End Try
End Sub
That's because the byte[] output
is well, and array of bytes, you may think on it as an array of bytes representing each one an integer, but when you add them all into a single string you get something that is NOT an integer, that's why. You may either have it as an array of integers or try to create an instance of BigInteger.
Starting with PHP 5.4, the echo shortcut is a separate issue from short tags, as the echo shortcut will always be enabled. It's a fact now:
So the echo shortcut itself (<?=
) is safe to use now.
Here's an easy jQuery way:
var el = $('#yourid .yourclass');
el.html(el.html().replace(/Old Text/ig, "New Text"));
use "Content-type: application/x-www-form-urlencoded" instead of "application/json"
In windows 10, just exit out of current login and run this on command line
--> mysqladmin -u root password “newpassword”
where instead of root could be any user.
Use something like this -
SELECT DISTINCT COL_NAME FROM myTable WHERE UPPER(COL_NAME) LIKE UPPER('%PriceOrder%')
or
SELECT DISTINCT COL_NAME FROM myTable WHERE LOWER(COL_NAME) LIKE LOWER('%PriceOrder%')
Your code is correct. Kindly mark small correction.
#rightcolumn {
width: 750px;
background-color: #777;
display: block;
**float: left;(wrong)**
**float: right; (corrected)**
border: 1px solid white;
}
Does it absolutely have to be 100% functional and fluent? If not, how about this, which is about as short as it gets:
Map<String, Integer> output = new HashMap<>();
input.forEach((k, v) -> output.put(k, Integer.valueOf(v));
(if you can live with the shame and guilt of combining streams with side-effects)
Use atoi() from <stdlib.h>
http://linux.die.net/man/3/atoi
Or, write your own atoi()
function which will convert char*
to int
int a2i(const char *s)
{
int sign=1;
if(*s == '-'){
sign = -1;
s++;
}
int num=0;
while(*s){
num=((*s)-'0')+num*10;
s++;
}
return num*sign;
}
Try using the Format
function:
Private Sub btncalc_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles btncalc.Click
txtA.Text = Format(Val(txtD.Text) / Val(txtC.Text) *
Val(txtF.Text) / Val(txtE.Text), "0.00")
txtB.Text = Format(Val(txtA.Text) * 1000 / Val(txtG.Text), "0.00")
End Sub
My problem was in web.xml
file. In one <servlet-mapping>
there was an error inside <url-pattern>
: I forgot to add /
before url.
<?php
class Test {
function MethodA(){
echo __FUNCTION__ ;
}
}
$test = new Test;
echo $test->MethodA();
?>
Result: "MethodA";
I had the same issue on our .NET based website, running on DotNetNuke (DNN) and what solved it for me was basically a simple margin reset of the form tag. .NET based websites are often wrapped in a form and without resetting the margin you can see the strange offset appearing sometimes, mostly when there are some scripts included.
So if you are trying to fix this issue on your site, try enter this into your CSS file:
form {
margin: 0;
}
Yes, this is something that you should worry about. Check the length of your objects with nrow(). R can auto-replicate objects so that they're the same length if they differ, which means you might be performing operations on mismatched data.
In this case you have an obvious flaw in that your subtracting aggregated data from raw data. These will definitely be of different lengths. I suggest that you merge them as time series (using the dates), then locf(), then do your subtraction. Otherwise merge them by truncating the original dates to the same interval as the aggregated series. Just be very careful that you don't drop observations.
Lastly, as some general advice as you get started: look at the result of your computations to see if they make sense. You might even pull them into a spreadsheet and replicate the results.
I got this error this morning, I just did a fresh install of Fedora 14 and was trying to get my local projects back online. I was missing php-mysql, I installed it via yum and the error is now gone.
How about:
window.location.hostname
The location
object actually has a number of attributes referring to different parts of the URL
$('[data-item-id="stand-out"]')
I know it's an old post but I had the same issue today, what I did is simple : changing my script that send my playbook from my local host to the server, before sending it with maven command, I did this :
cat common_vars.yml > vars.yml
cat snapshot_vars.yml >> vars.yml
# or
#cat release_vars.yml >> vars.yml
mvn ....
I've discovered in Excel 2007, if the results are a Table from an embedded query, the ss.000 does not work. I can paste the query results (from SQL Server Management Studio), and format the time just fine. But when I embed the query as a Data Connection in Excel, the format always gives .000 as the milliseconds.
cd /var/log/nginx/
cat error.log
I have seen this problem when the user had set up a scheduled task to run under his account. He forgot to update the password on the task after he changed his account password. The scheduled task was trying to logon with the old password and kept locking out his account.
await Promise.all([someCall(), anotherCall()]); as already mention will act as a thread fence (very common in parallel code as CUDA), hence it will allow all the promises in it to run without blocking each other, but will prevent the execution to continue until ALL are resolved.
another approach that is worth to share is the Node.js async that will also allow you to easily control the amount of concurrency that is usually desirable if the task is directly linked to the use of limited resources as API call, I/O operations, etc.
// create a queue object with concurrency 2
var q = async.queue(function(task, callback) {
console.log('Hello ' + task.name);
callback();
}, 2);
// assign a callback
q.drain = function() {
console.log('All items have been processed');
};
// add some items to the queue
q.push({name: 'foo'}, function(err) {
console.log('Finished processing foo');
});
q.push({name: 'bar'}, function (err) {
console.log('Finished processing bar');
});
// add some items to the queue (batch-wise)
q.push([{name: 'baz'},{name: 'bay'},{name: 'bax'}], function(err) {
console.log('Finished processing item');
});
// add some items to the front of the queue
q.unshift({name: 'bar'}, function (err) {
console.log('Finished processing bar');
});
Credits to the Medium article autor (read more)
Yours:
<div style="height:42px;width:42px">
<img src="http://someimage.jpg">
Is it okay to use this code?
<div class= "box">
<img src= "http://someimage.jpg" class= "img">
</div>
<style type="text/css">
.box{width: 42; height: 42;}
.img{width: 20; height:20;}
</style>
Just trying, though late. :3 For someone else reading this, letme know if the way i wrote the code were not good. im new in this kind of language. and i still want to learn more.
In addition to options suggested by others I can recommend the fmt library which implements string formatting similar to str.format
in Python and String.Format
in C#. Here's an example:
std::string a = "test";
std::string b = "text.txt";
std::string c = "text1.txt";
std::string result = fmt::format("{0} {1} > {2}", a, b, c);
Disclaimer: I'm the author of this library.
After speaking with you in the comments, I believe that you can just do this using numpy/scipy. The ideas is to read the image in the numpy
3d-array and feed it into the variable.
from scipy import misc
import tensorflow as tf
img = misc.imread('01.png')
print img.shape # (32, 32, 3)
img_tf = tf.Variable(img)
print img_tf.get_shape().as_list() # [32, 32, 3]
Then you can run your graph:
init = tf.initialize_all_variables()
sess = tf.Session()
sess.run(init)
im = sess.run(img_tf)
and verify that it is the same:
import matplotlib.pyplot as plt
fig = plt.figure()
fig.add_subplot(1,2,1)
plt.imshow(im)
fig.add_subplot(1,2,2)
plt.imshow(img)
plt.show()
P.S. you mentioned: Since it's supposed to parallelize reading, it seems useful to know.
. To which I can say that rarely in data-analysis reading of the data is the bottleneck. Most of your time you will spend training your model.
Not sure if this is efficient or not, but strings in PowerShell can be referred to using array index syntax, in a similar fashion to Python.
It's not completely intuitive because of the fact the first letter is referred to by index = 0
, but it does:
Here are some examples:
PS > 'Hello World'[0..2]
Yields the result (index values included for clarity - not generated in output):
H [0]
e [1]
l [2]
Which can be made more useful by passing -join ''
:
PS > 'Hello World'[0..2] -join ''
Hel
There are some interesting effects you can obtain by using different indices:
Forwards
Use a first index value that is less than the second and the substring will be extracted in the forwards direction as you would expect. This time the second index value is far in excess of the string length but there is no error:
PS > 'Hello World'[3..300] -join ''
lo World
Unlike:
PS > 'Hello World'.Substring(3,300)
Exception calling "Substring" with "2" argument(s): "Index and length must refer to a location within
the string.
Backwards
If you supply a second index value that is lower than the first, the string is returned in reverse:
PS > 'Hello World'[4..0] -join ''
olleH
From End
If you use negative numbers you can refer to a position from the end of the string. To extract 'World'
, the last 5 letters, we use:
PS > 'Hello World'[-5..-1] -join ''
World
That work for me
this.array.pop(index);
for example index = 3
this.array.pop(3);
This no longer works in Xcode 8.3. It appears to be related to Apple's move to automate provisioning profile and certificate generation:
The simplest "solution" (or workaround) is to make sure Xcode is closed, then via Terminal:
rm ~/Library/MobileDevice/Provisioning\ Profiles/*.mobileprovision
Open Preferences > Accounts
Select your apple ID from the list
On the right-hand side, select the team your provisioning profile belongs to
Click View Details
Under Provisioning Profiles, right-click the one you want to delete and select Move to Trash:
I think you should count the results with FOUND_ROWS() and SQL_CALC_FOUND_ROWS. You'll need two queries: select
, group_by
, etc. You'll add a plus select: SQL_CALC_FOUND_ROWS user_id
. After this query run a query: SELECT FOUND_ROWS()
. This will return the desired number.
You could also use:
<body onload="focusOnInput()">
<form name="passwordForm" action="verify.php" method="post">
<input name="passwordInput" type="password" />
</form>
</body>
And then in your JavaScript:
function focusOnInput() {
document.forms["passwordForm"]["passwordInput"].focus();
}
With my Android 5 tablet, every time I attempt to use adb, to install a signed release apk, I get the [INSTALL_FAILED_ALREADY_EXISTS]
error.
I have to uninstall the debug package first. But, I cannot uninstall using the device's Application Manager!
If do uninstall the debug version with the Application Manager, then I have to re-run the debug build variant from Android Studio, then uninstall it using adb uninstall com.example.mypackagename
Finally, I can use adb install myApp.apk
to install the signed release apk.
You can split and convert like
var strVale = "130,235,342,124 ";
var intValArray=strVale.split(',');
for(var i=0;i<intValArray.length;i++{
intValArray[i]=parseInt(intValArray[i]);
}
Now you can use intValArray in you logic.
Security Warning: AES-256-CBC does not provide authenticated encryption and is vulnerable to padding oracle attacks. You should use something like age instead.
Encrypt:
openssl aes-256-cbc -a -salt -in secrets.txt -out secrets.txt.enc
Decrypt:
openssl aes-256-cbc -d -a -in secrets.txt.enc -out secrets.txt.new
We started finding some machines with IE 11 not playing video (via flash) after we set the emulation mode of our app (web browser control) to 110001. Adding the meta tag to our htm files worked for us.
Toast.makeText(getApplicationContext(), "received", Toast.LENGTH_SHORT);
makes the toast, but doesnt show it.
You have to do Toast.makeText(getApplicationContext(), "received", Toast.LENGTH_SHORT).show();
$("#myid li").click(function() {
alert(this.id); // id of clicked li by directly accessing DOMElement property
alert($(this).attr('id')); // jQuery's .attr() method, same but more verbose
alert($(this).html()); // gets innerHTML of clicked li
alert($(this).text()); // gets text contents of clicked li
});
If you are talking about replacing the ID with something:
$("#myid li").click(function() {
this.id = 'newId';
// longer method using .attr()
$(this).attr('id', 'newId');
});
Demo here. And to be fair, you should have first tried reading the documentation:
I guess you have your css code in a database & you want to render a php file as a CSS. If that is the case...
In your html page:
<html>
<head>
<!- head elements (Meta, title, etc) -->
<!-- Link your php/css file -->
<link rel="stylesheet" href="style.php" media="screen">
<head>
Then, within style.php file:
<?php
/*** set the content type header ***/
/*** Without this header, it wont work ***/
header("Content-type: text/css");
$font_family = 'Arial, Helvetica, sans-serif';
$font_size = '0.7em';
$border = '1px solid';
?>
table {
margin: 8px;
}
th {
font-family: <?=$font_family?>;
font-size: <?=$font_size?>;
background: #666;
color: #FFF;
padding: 2px 6px;
border-collapse: separate;
border: <?=$border?> #000;
}
td {
font-family: <?=$font_family?>;
font-size: <?=$font_size?>;
border: <?=$border?> #DDD;
}
Have fun!
REGEXP_COUNT should do the trick:
select REGEXP_COUNT('123-345-566', '-') from dual;
I think you might be better off using PHP's inbuilt filters - in this particular case:
It can return a true or false when supplied with the FILTER_VALIDATE_EMAIL
param.
For me the problem was tied to having the same file included in the bundle resources twice. Not sure how that happened, but I removed one of them and it compiled fine with the new build system.
if you want to change only the colour of the flag on hover
use this:
.fa-flag:hover {_x000D_
color: red;_x000D_
}
_x000D_
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>_x000D_
_x000D_
<i class="fa fa-flag fa-3x"></i>
_x000D_
The short answer is yes, as long as it is a public IP address.
Issuance of certificates to reserved IP addresses is not allowed, and all certificates previously issued to reserved IP addresses were revoked as of 1 October 2016.
According to the CA Browser forum, there may be compatibility issues with certificates for IP addresses unless the IP address is in both the commonName
and subjectAltName
fields. This is due to legacy SSL implementations which are not aligned with RFC 5280, notably, Windows OS prior to Windows 10.
Sources:
Note: an earlier version of this answer stated that all IP address certificates would be revoked on 1 October 2016. Thanks to Navin for pointing out the error.
This can help without rounding
declare @test float(25)
declare @test1 decimal(10,5)
select @test = 34.0387597207
select @test
set @test1 = convert (decimal(10,5), @test)
select cast((@test1) as varchar(12))
Select LEFT(cast((@test1) as varchar(12)),LEN(cast((@test1) as varchar(12)))-1)
This happened with me yesterday cause I downloaded the code from original repo and try to pushed it on my forked repo, spend so much time on searching for solving "Unable to push error" and pushed it forcefully.
Solution:
Simply Refork the repo by deleting previous one and clone the repo from forked repo to the new folder.
Replace the file with old one in new folder and push it to repo and do a new pull request.
I created a little javascript tool to style elements on screen size without using media queries or recompiling bootstrap css:
https://github.com/Heras/Responsive-Breakpoints
Just add class responsive-breakpoints
to any element, and it will automagically add xs sm md lg xl
classes to those elements.
Depends what you mean by a pattern. If you're thinking Person/Company/Transaction/Product and such, then yes - there are a lot of generic database schemas already available.
If you're thinking Factory, Singleton... then no - you don't need any of these as they're too low level for DB programming.
If you're thinking database object naming, then it's under the category of conventions, not design per se.
BTW, S.Lott, one-to-many and many-to-many relationships aren't "patterns". They're the basic building blocks of the relational model.
Can you learn to draw, sculpt, or paint in ten weeks? Anyone can learn to punch the keys to program, just as anyone can pick up a brush, but it takes time and talent to cultivate the artistry to develop. Do yourself a favor and put the time and effort in to learning, not cramming. The lessons you learn by a concerted effort to know how to develop will serve you much better than binging on it to meet some arbitrary date.
This really useful example. It lacks in the documentation doctrine 2.
Very thank you.
For the proxies functions can be done :
class AlbumTrack extends AlbumTrackAbstract {
... proxy method.
function getTitle() {}
}
class TrackAlbum extends AlbumTrackAbstract {
... proxy method.
function getTitle() {}
}
class AlbumTrackAbstract {
private $id;
....
}
and
/** @OneToMany(targetEntity="TrackAlbum", mappedBy="album") */
protected $tracklist;
/** @OneToMany(targetEntity="AlbumTrack", mappedBy="track") */
protected $albumsFeaturingThisTrack;
Here's probably a quick approach,
With two icons shown above, you shall have a RadioGroup
something like this
RadioGroup
's orientation to horizontalRadioButton
's Properties, try giving the icon for Button
under CompoundButton
,Some extensions like blocksite use the accessibility service API to deploy extension like features to Chrome on Android. Might be worth a look through the play store. Otherwise, Firefox is your best bet, though many extensions don't work on mobile for some reason.
https://play.google.com/store/apps/details?id=co.blocksite&hl=en_US
You'll definitely want to check out this positioning article from 'A List Apart'. Helped demystify CSS positioning (which seemed insane to me, prior to this article).
@perreal's command works great! If you forget, try in two steps...
example: filter top to display only application called yakuake:
$ pgrep yakuake
1755
$ top -p 1755
useful top interactive commands 'c' : toggle full path vs. command name 'k' : kill by PID 'F' : filter by... select with arrows... then press 's' to set the sort
the answer below is good too... I was looking for that today but couldn't find it. Thanks
Another approach in 2020 could be using document.querySelector()
:
const myInput = document.querySelector('input[name="exampleInput"]');
myInput.addEventListener("change", (e) => {
// here we do something
});
You can create an NSIndexPath
using the row and section number then reload it like so:
let indexPath = NSIndexPath(forRow: rowNumber, inSection: 0)
tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Top)
In this example, I've assumed that your table only has one section (i.e. 0) but you may change that value accordingly.
Update for Swift 3.0:
let indexPath = IndexPath(item: rowNumber, section: 0)
tableView.reloadRows(at: [indexPath], with: .top)
Click on options on the connect to Server dialog and on the Connection Properties, you can choose the database to connect to on startup. Its better to leave it default which will make master as default. Otherwise you might inadvertently run sql on a wrong database after connecting to a database.
CSS3 grab
and grabbing
are now allowed values for cursor
.
In order to provide several fallbacks for cross-browser compatibility3 including custom cursor files, a complete solution would look like this:
.draggable {
cursor: move; /* fallback: no `url()` support or images disabled */
cursor: url(images/grab.cur); /* fallback: Internet Explorer */
cursor: -webkit-grab; /* Chrome 1-21, Safari 4+ */
cursor: -moz-grab; /* Firefox 1.5-26 */
cursor: grab; /* W3C standards syntax, should come least */
}
.draggable:active {
cursor: url(images/grabbing.cur);
cursor: -webkit-grabbing;
cursor: -moz-grabbing;
cursor: grabbing;
}
Update 2019-10-07:
.draggable {
cursor: move; /* fallback: no `url()` support or images disabled */
cursor: url(images/grab.cur); /* fallback: Chrome 1-21, Firefox 1.5-26, Safari 4+, IE, Edge 12-14, Android 2.1-4.4.4 */
cursor: grab; /* W3C standards syntax, all modern browser */
}
.draggable:active {
cursor: url(images/grabbing.cur);
cursor: grabbing;
}
Sure you can.
ALTER TABLE myTable ALTER COLUMN myColumn int NULL
Just substitute int for whatever datatype your column is.
What worked for me was going to the article someone else had already mentioned, but keying on this piece:
application.config.backup is not created by automatic backup. The backup files are in %systemdrive%\inetpub\history directory. Automatic backup is also a Vista SP1 and above feature. More information can be found in this blog post, http://blogs.iis.net/bills/archive/2008/03/24/how-to-backup-restore-iis7-configuration.aspx
I was able to find backups of my settings from when I had first installed IIS, and just copy and replace the files in the inetsrv\config directory.
You need to handle it via ajax
submit.
Something like this:
$(function(){
$('#subscribe-email-form').on('submit', function(e){
e.preventDefault();
$.ajax({
url: url, //this is the submit URL
type: 'GET', //or POST
data: $('#subscribe-email-form').serialize(),
success: function(data){
alert('successfully submitted')
}
});
});
});
A better way would be to use a django form, and then render the following snippet:
<form>
<div class="modal-body">
<input type="email" placeholder="email"/>
<p>This service will notify you by email should any issue arise that affects your plivo service.</p>
</div>
<div class="modal-footer">
<input type="submit" value="SUBMIT" class="btn"/>
</div>
</form>
via the context - example : {{form}}
.
On Python 3 numpy.genfromtxt
expects a bytes stream. Use the following:
numpy.genfromtxt(io.BytesIO(x.encode()))
If you just run jmap -histo:live or jmap -histo, it outputs the contents on the console!
This solution is working with Android Studio 4.0.1.
Apart from creating a new module as suggested in above solution, you can try this solution.
If you have multiple modules in your application and want to add aar to just one of the module then this solution come handy.
In your root project build.gradle
add
repositories {
mavenCentral()
flatDir {
dirs 'libs'
}
Then in the module where you want to add the .aar file locally. simply add below lines of code.
dependencies {
api fileTree(include: ['*.aar'], dir: 'libs')
implementation files('libs/<yourAarName>.aar')
}
Happy Coding :)
If you're using SQL Server, after your query you can select the @@RowCount function (or if your result set might have more than 2 billion rows use the RowCount_Big() function). This will return the number of rows selected by the previous statement or number of rows affected by an insert/update/delete statement.
SELECT my_table.my_col
FROM my_table
WHERE my_table.foo = 'bar'
SELECT @@Rowcount
Or if you want to row count included in the result sent similar to Approach #2, you can use the the OVER clause.
SELECT my_table.my_col,
count(*) OVER(PARTITION BY my_table.foo) AS 'Count'
FROM my_table
WHERE my_table.foo = 'bar'
Using the OVER clause will have much better performance than using a subquery to get the row count. Using the @@RowCount will have the best performance because the there won't be any query cost for the select @@RowCount statement
Update in response to comment: The example I gave would give the # of rows in partition - defined in this case by "PARTITION BY my_table.foo". The value of the column in each row is the # of rows with the same value of my_table.foo. Since your example query had the clause "WHERE my_table.foo = 'bar'", all rows in the resultset will have the same value of my_table.foo and therefore the value in the column will be the same for all rows and equal (in this case) this the # of rows in the query.
Here is a better/simpler example of how to include a column in each row that is the total # of rows in the resultset. Simply remove the optional Partition By clause.
SELECT my_table.my_col, count(*) OVER() AS 'Count'
FROM my_table
WHERE my_table.foo = 'bar'
Have a look at this page.
you can try globally adding the flag using: export CXXFLAGS="$CXXFLAGS -fPIC"
I found new Solution without any required certification to call curl only add two line code.
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
lea
is an abbreviation of "load effective address". It loads the address of the location reference by the source operand to the destination operand. For instance, you could use it to:
lea ebx, [ebx+eax*8]
to move ebx
pointer eax
items further (in a 64-bit/element array) with a single instruction. Basically, you benefit from complex addressing modes supported by x86 architecture to manipulate pointers efficiently.
I know I'm late but still it could help someone. I'm just extending the accepted answer and I have also added the comment on it.
Well, the answer itself says it is inefficient
So in order to make it refresh only when required you can do this
private boolean refresh;
public void refreshAdapter() {
refresh = true;
notifyDataSetChanged();
}
@Override
public int getItemPosition(@NonNull Object object) {
if (refresh) {
refresh = false;
return POSITION_NONE;
} else {
return super.getItemPosition(object);
}
}
In my case there's this line in MainActivity.java which was missed when I used react-native-rename
cli (from NPM)
protected String getMainComponentName() {
return "AwesomeApp";
}
Obviously ya gotta rename it to your app's name.
<gradient
android:centerColor="#c1c1c1"
android:endColor="#4f4f4f"
android:gradientRadius="400"
android:startColor="#c1c1c1"
android:type="radial" >
</gradient>
long
can only take string convertibles which can end in a base 10 numeral. So, the decimal is causing the harm. What you can do is, float
the value before calling the long
. If your program is on Python 2.x where int and long difference matters, and you are sure you are not using large integers, you could have just been fine with using int
to provide the key as well.
So, the answer is long(float('234.89'))
or it could just be int(float('234.89'))
if you are not using large integers. Also note that this difference does not arise in Python 3, because int is upgraded to long by default. All integers are long in python3 and call to covert is just int
Maybe this is helpfull to someone after few years.
New way, on Androidx, of getting SharedPreferences()
inside fragment is to implement into gradle dependencies
implementation "androidx.preference:preference:1.1.1"
and then, inside fragment call
SharedPreferences preferences;
preferences = androidx.preference.PreferenceManager.getDefaultSharedPreferences(getActivity());
you can do try lodash
Example code for json object:
var user = {'user':'barney','age':36};
user["newKey"] = true;
console.log(user);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<script src="lodash.js"></script>
_x000D_
for json array elements
Example code:
var users = [
{ 'user': 'barney', 'age': 36 },
{ 'user': 'fred', 'age': 40 }
];
users.map(i=>{i["newKey"] = true});
console.log(users);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<script src="lodash.js"></script>
_x000D_
Wrap the column name in brackets like so, from
becomes [from].
select [from] from table;
It is also possible to use the following (useful when querying multiple tables):
select table.[from] from table;
From angular's documentation,
ng-init SHOULD NOT be used for any initialization. It should be used only for aliasing. https://docs.angularjs.org/api/ng/directive/ngInit
onload should be used if any expression needs to be evaluated after a partial view is loaded (by ng-include). https://docs.angularjs.org/api/ng/directive/ngInclude
The major difference between them is when used with ng-include.
<div ng-include="partialViewUrl" onload="myFunction()"></div>
In this case, myFunction is called everytime the partial view is loaded.
<div ng-include="partialViewUrl" ng-init="myFunction()"></div>
Whereas, in this case, myFunction is called only once when the parent view is loaded.
In latin1 each character is exactly one byte long. In utf8 a character can consist of more than one byte. Consequently utf8 has more characters than latin1 (and the characters they do have in common aren't necessarily represented by the same byte/bytesequence).
Sometime I use such class, when I need to return multiple values from a method. Of course, such object is short lived and with very limited visibility, so it should be OK.
This will work for input, textarea and select in normal, hover, focus and active states.
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active,
textarea:-webkit-autofill,
textarea:-webkit-autofill:hover,
textarea:-webkit-autofill:focus,
textarea:-webkit-autofill:active,
select:-webkit-autofill,
select:-webkit-autofill:hover,
select:-webkit-autofill:focus,
select:-webkit-autofill:active,
{
-webkit-box-shadow: 0 0 0px 1000px white inset !important;
}
Here is SCSS version of the above solution for those who are working with SASS/SCSS.
input:-webkit-autofill,
textarea:-webkit-autofill,
select:-webkit-autofill
{
&, &:hover, &:focus, &:active
{
-webkit-box-shadow: 0 0 0px 1000px white inset !important;
}
}
if let
/if var
optional binding only works when the result of the right side of the expression is an optional. If the result of the right side is not an optional, you can not use this optional binding. The point of this optional binding is to check for nil
and only use the variable if it's non-nil
.
In your case, the tableView
parameter is declared as the non-optional type UITableView
. It is guaranteed to never be nil
. So optional binding here is unnecessary.
func tableView(tableView: UITableView, commitEditingStyle editingStyle:UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == .Delete {
// Delete the row from the data source
myData.removeAtIndex(indexPath.row)
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
All we have to do is get rid of the if let
and change any occurrences of tv
within it to just tableView
.
What you want to do is referred to as "squashing" in git. There are lots of options when you're doing this (too many?) but if you just want to merge all of your unpushed commits into a single commit, do this:
git rebase -i origin/master
This will bring up your text editor (-i
is for "interactive") with a file that looks like this:
pick 16b5fcc Code in, tests not passing
pick c964dea Getting closer
pick 06cf8ee Something changed
pick 396b4a3 Tests pass
pick 9be7fdb Better comments
pick 7dba9cb All done
Change all the pick
to squash
(or s
) except the first one:
pick 16b5fcc Code in, tests not passing
squash c964dea Getting closer
squash 06cf8ee Something changed
squash 396b4a3 Tests pass
squash 9be7fdb Better comments
squash 7dba9cb All done
Save your file and exit your editor. Then another text editor will open to let you combine the commit messages from all of the commits into one big commit message.
Voila! Googling "git squashing" will give you explanations of all the other options available.
Differences between HashSet and HashMap in Java
HashSet internally uses HashMap to store objects.when add(String) method called it calls HahsMap put(key,value) method where key=String object & value=new Object(Dummy).so it maintain no duplicates because keys are nothing but Value Object.
the Objects which are stored as key in Hashset/HashMap should override hashcode & equals contract.
Keys which are used to access/store value objects in HashMap should declared as Final because when it is modified Value object can't be located & returns null.
Using AFNetworking 3.0, you should write:
NSString *strURL = @"https://exampleWeb.com/webserviceOBJ";
NSURL * urlStr = [NSURL URLWithString:strURL];
NSDictionary *dictParameters = @{@"user[height]": height,@"user[weight]": weight};
AFHTTPSessionManager * manager = [AFHTTPSessionManager manager];
[manager POST:url.absoluteString parameters:dictParameters success:^(NSURLSessionTask *task, id responseObject) {
NSLog(@"PLIST: %@", responseObject);
} failure:^(NSURLSessionTask *operation, NSError *error) {
NSLog(@"Error: %@", error);
}];
You can use the below change event to which will trigger when the combobox value will change.
Private Sub ComboBox1_Change()
'your code here
End Sub
Also you can get the selected value using below
ComboBox1.Value