your JBoss configuration has some issues, /opt/jrockit-jdk1.6/bin/java -Xms512m -Xmx512m Xms and Xmx are limiting your JBoss memory usage, to the configured value, so from the 8Gb you have the server is only ussing 512M + some extra for his own purpose, increase that number, remember to leave some free for the OS and other stuff running there and may be you get it running despite de unsavoury code. Fixing the code would be nice too, if you can.
I know this says command line, but just a tidbit of something quick to try that might work, if you've got MySQL workbench and the csv isn't too large, you can simply
I say hope for the best because this is MySQL Workbench. You never know when it's going to explode
If you want to do this on a remote server, you would do
mysql -h<server|ip> -u<username> -p --local-infile bark -e "LOAD DATA LOCAL INFILE '<filename.csv>' INTO TABLE <table> FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n'"
Note, I didn't put a password after -p
as putting one on the command line is considered bad practice
With Sharepoint Designer you can edit the CAML of your XSLT List View.
If you set the Scope attribute of the View element to Recursive or RecursiveAll, which returns all Files and Folders, you can filter the documents by FileDirRef:
<Where>
<Contains>
<FieldRef Name='FileDirRef' />
<Value Type='Lookup'>MyFolder</Value>
</Contains>
</Where>
This returns all documents which contain the string 'MyFolder' in their path.
I found infos about this on http://platinumdogs.wordpress.com/2009/07/21/querying-document-libraries-or-pulling-teeth-with-caml/ and useful information abouts fields at http://blog.thekid.me.uk/archive/2007/03/21/wss-field-display-amp-internal-names-for-lists-amp-document-libraries.aspx
Edit:
Since node v10.0.0
we could use fs.promises.access(...)
Example async code that checks if file exists:
async function checkFileExists(file) {
return fs.promises.access(file, fs.constants.F_OK)
.then(() => true)
.catch(() => false)
}
An alternative for stat might be using the new fs.access(...)
:
minified short promise function for checking:
s => new Promise(r=>fs.access(s, fs.constants.F_OK, e => r(!e)))
Sample usage:
let checkFileExists = s => new Promise(r=>fs.access(s, fs.constants.F_OK, e => r(!e)))
checkFileExists("Some File Location")
.then(bool => console.log(´file exists: ${bool}´))
expanded Promise way:
// returns a promise which resolves true if file exists:
function checkFileExists(filepath){
return new Promise((resolve, reject) => {
fs.access(filepath, fs.constants.F_OK, error => {
resolve(!error);
});
});
}
or if you wanna do it synchronously:
function checkFileExistsSync(filepath){
let flag = true;
try{
fs.accessSync(filepath, fs.constants.F_OK);
}catch(e){
flag = false;
}
return flag;
}
If you are using express.json()
and bodyParser together it will give error as express sets its own limit.
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
remove above code and just add below code
app.use(bodyParser.json({ limit: "200mb" }));
app.use(bodyParser.urlencoded({ limit: "200mb", extended: true, parameterLimit: 1000000 }));
For Current date and time as the name for a file on the file system. Now call the string.Format method, and combine it with DateTime.Now, for a method that outputs the correct string based on the date and time.
using System;
using System.IO;
class Program
{
static void Main()
{
//
// Write file containing the date with BIN extension
//
string n = string.Format("text-{0:yyyy-MM-dd_hh-mm-ss-tt}.bin",
DateTime.Now);
File.WriteAllText(n, "abc");
}
}
Output :
C:\Users\Fez\Documents\text-2020-01-08_05-23-13-PM.bin
"text-{0:yyyy-MM-dd_hh-mm-ss-tt}.bin"
text- The first part of the output required Files will all start with text-
{0: Indicates that this is a string placeholder The zero indicates the index of the parameters inserted here
yyyy- Prints the year in four digits followed by a dash This has a "year 10000" problem
MM- Prints the month in two digits
dd_ Prints the day in two digits followed by an underscore
hh- Prints the hour in two digits
mm- Prints the minute, also in two digits
ss- As expected, it prints the seconds
tt Prints AM or PM depending on the time of day
Short extension for Kotlin
fun Bitmap.rotate(degrees: Float): Bitmap {
val matrix = Matrix().apply { postRotate(degrees) }
return Bitmap.createBitmap(this, 0, 0, width, height, matrix, true)
}
And usage:
val rotatedBitmap = bitmap.rotate(90f)
This method doesn't use any loops and is actually quite simple. It expands the date range to full weeks since we know that each week has 5 business days. It then uses a lookup table to find the number of business days to subtract from the start and end to get the right result. I've expanded out the calculation to help show what's going on, but the whole thing could be condensed into a single line if needed.
Anyway, this works for me and so I thought I'd post it here in case it might help others. Happy coding.
Calculation
Culture
Code assumes a Monday to Friday work week. For other cultures, such as Sunday to Thursday, you'll need to offset the dates prior to calculation.
Method
public int Weekdays(DateTime min, DateTime max)
{
if (min.Date > max.Date) throw new Exception("Invalid date span");
var t = (max.AddDays(1).Date - min.Date).TotalDays;
var a = (int) min.DayOfWeek;
var b = 6 - (int) max.DayOfWeek;
var k = 1.4;
var m = new int[]{0, 0, 1, 2, 3, 4, 5};
var c = m[a] + m[b];
return (int)((t + a + b) / k) - c;
}
With props to Rick (second comment down in the blog post mentioned), here's the MSDN article on httpOnlyCookies.
Bottom line is that you just add the following section in your system.web section in your web.config:
<httpCookies domain="" httpOnlyCookies="true|false" requireSSL="true|false" />
Try this for Windows:
npm uninstall -g cordova
Try this for MAC:
sudo npm uninstall -g cordova
You can also add Cordova like this:
If You Want To install the previous version of Cordova through the Node Package Manager (npm):
npm install -g [email protected]
If You Want To install the latest version of Cordova:
npm install -g cordova
Enjoy!
Check you PATH environment variable once. Make sure the correct location of your JDK is specified there.
I've found that the following works if you're not using jQuery and only interested in cloning simple objects (see comments).
JSON.parse(JSON.stringify(json_original));
Documentation
I had this problem. Couldn't install apk via the Downloads app. However opening the apk in a file manager app allowed me to install it fine. Using OI File Manager on stock Nexus 7 4.2.1
With out typescript
error
const formData = new FormData();
Object.keys(newCategory).map((k,i)=>{
var d =Object.values(newCategory)[i];
formData.append(k,d)
})
Here are three different checkmark styles you can use:
ul:first-child li:before { content:"\2713\0020"; } /* OR */_x000D_
ul:nth-child(2) li:before { content:"\2714\0020"; } /* OR */_x000D_
ul:last-child li:before { content:"\2611\0020"; }_x000D_
ul { list-style-type: none; }
_x000D_
<ul>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
</ul>_x000D_
_x000D_
<ul>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
</ul>_x000D_
_x000D_
<ul><!-- not working on Stack snippet; check fiddle demo -->_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
<li>this is my text</li>_x000D_
</ul>
_x000D_
References:
Since you're using PHP, you will probably need to use the CURLOPT_PORT
option, like so:
curl_setopt($ch, CURLOPT_PORT, 11740);
Bear in mind, you may face problems with SELinux:
For some people this makes more sense if they see it in a couple different languages so I wrote an example in Java, and PHP on my page where I explain some of these modifiers. You might be thinking about this incorrectly.
You should look at my examples if it doesn't make sense below. Go here http://www.siteconsortium.com/h/D0000D.php
The bottom line though is that it is pretty much exactly what it says it is. It's a static member variable that is private. For example if you wanted to create a Singleton object why would you want to make the SingletonExample.instance variable public. If you did a person who was using the class could easily overwrite the value.
That's all it is.
public class SingletonExample { private static SingletonExample instance = null; private static int value = 0; private SingletonExample() { ++this.value; } public static SingletonExample getInstance() { if(instance!=null) return instance; synchronized(SingletonExample.class) { instance = new SingletonExample(); return instance; } } public void printValue() { System.out.print( this.value ); } public static void main(String [] args) { SingletonExample instance = getInstance(); instance.printValue(); instance = getInstance(); instance.printValue(); } }
The error occurs when the DNS resolution fails. Check if you can wget (or curl) the api url from the command line. Changing the DNS server and testing it might help.
from my comment:
position:sticky
needs a coordonate to tel where to stick
nav {_x000D_
position: sticky;_x000D_
top: 0;_x000D_
}_x000D_
_x000D_
.nav-selections {_x000D_
text-transform: uppercase;_x000D_
letter-spacing: 5px;_x000D_
font: 18px "lato", sans-serif;_x000D_
display: inline-block;_x000D_
text-decoration: none;_x000D_
color: white;_x000D_
padding: 18px;_x000D_
float: right;_x000D_
margin-left: 50px;_x000D_
transition: 1.5s;_x000D_
}_x000D_
_x000D_
.nav-selections:hover {_x000D_
transition: 1.5s;_x000D_
color: black;_x000D_
}_x000D_
_x000D_
ul {_x000D_
background-color: #B79b58;_x000D_
overflow: auto;_x000D_
}_x000D_
_x000D_
li {_x000D_
list-style-type: none;_x000D_
}_x000D_
_x000D_
body {_x000D_
height: 200vh;_x000D_
}
_x000D_
<nav>_x000D_
<ul align="left">_x000D_
<li><a href="#/contact" class="nav-selections" style="margin-right:35px;">Contact</a></li>_x000D_
<li><a href="#/about" class="nav-selections">About</a></li>_x000D_
<li><a href="#/products" class="nav-selections">Products</a></li>_x000D_
<li><a href="#" class="nav-selections">Home</a></li>_x000D_
</ul>_x000D_
</nav>
_x000D_
There is polyfill to use for other browsers than FF and Chrome . This is an experimental rules that can be implemented or not at any time through browsers. Chrome add it a couple of years ago and then dropped it, it seems back ... but for how long ?
The closest would be position:relative + coordonates updated while scrolling once reached the sticky point, if you want to turn this into a javascript script
If you just want to rename and don't mind using an external tool, then you can use rnm. The command would be:
#on current folder
rnm -dp -1 -fo -ssf '_dbg' -rs '/_dbg//' *
-dp -1
will make it recursive to all subdirectories.
-fo
implies file only mode.
-ssf '_dbg'
searches for files with _dbg in the filename.
-rs '/_dbg//'
replaces _dbg with empty string.
You can run the above command with the path of the CURRENT_FOLDER too:
rnm -dp -1 -fo -ssf '_dbg' -rs '/_dbg//' /path/to/the/directory
Try this:
<style>
p
{
width:100px;
word-wrap:break-word;
}
</style>
<p>Loremipsumdolorsitamet,consecteturadipiscingelit.Fusce non nisl
non ante malesuada mollis quis ut ipsum. Cum sociis natoque penatibus et magnis dis
parturient montes, nascetur ridiculus mus. Cras ut adipiscing dolor. Nunc congue,
tellus vehicula mattis porttitor, justo nisi sollicitudin nulla, a rhoncus lectus lacus
id turpis. Vivamus diam lacus, egestas nec bibendum eu, mattis eget risus</p>
You could try doing
document.getElementById(id).innerHTML = ajax_response
There is an ES7 proposal for RegExp.escape at https://github.com/benjamingr/RexExp.escape/, with a polyfill available at https://github.com/ljharb/regexp.escape.
Since your keys are strings and since we are talking about readability, I prefer :
mydict = dict(
key1 = 1,
key2 = 2,
key3 = 3
)
You don't have access to the right image as far my knowledge, unless you override the onTouch
event. I suggest to use a RelativeLayout
, with one editText
and one imageView
, and set OnClickListener
over the image view as below:
<RelativeLayout
android:id="@+id/rlSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@android:drawable/edit_text"
android:padding="5dip" >
<EditText
android:id="@+id/txtSearch"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="@+id/imgSearch"
android:background="#00000000"
android:ems="10"/>
<ImageView
android:id="@+id/imgSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="@drawable/btnsearch" />
</RelativeLayout>
I Found the best way to increase Font Size in Eclipse:
Follow this path : Eclipse-Folder\plugins\org.eclipse.ui.themes_1.2.100.v20180514-1547\css
--There are a bunch of Files here and it depends on user system which file to change.
* {
font-size:13;
font-family: Helvetica, Arial, sans-serif;
font-weight: normal;
}
you can even change Font Family if you like.
For Windows Users add the following piece of css at BOTTOM of these files: File Names: e4_default_gtk.css & e4_default_win.css
For Mac Users: e4_default_mac.css
I don't know what the "preferred" method is (ask 100 people and get 100 different opinions) but do what's simplest and what works. GetName
works but requires a lot more keystrokes. ToString()
seems to do the job very well.
This would work on your edited question !
SELECT * FROM (SELECT <Column_List>,
( 6371*1000 * acos( cos( radians(42.3936868308) ) * cos( radians( lat ) ) * cos( radians( lon ) - radians(-72.5277256966) ) + sin( radians(42.3936868308) ) * sin( radians( lat ) ) ) )
AS distance
FROM poi_table) TMP
WHERE distance < 500;
Not something completely different, just a bit rewritten recipe from Cookbook. It's futhermore optimized by retaining setdefault
method, instead of each time getting it through the instance:
def inverse(mapping):
'''
A function to inverse mapping, collecting keys with simillar values
in list. Careful to retain original type and to be fast.
>> d = dict(a=1, b=2, c=1, d=3, e=2, f=1, g=5, h=2)
>> inverse(d)
{1: ['f', 'c', 'a'], 2: ['h', 'b', 'e'], 3: ['d'], 5: ['g']}
'''
res = {}
setdef = res.setdefault
for key, value in mapping.items():
setdef(value, []).append(key)
return res if mapping.__class__==dict else mapping.__class__(res)
Designed to be run under CPython 3.x, for 2.x replace mapping.items()
with mapping.iteritems()
On my machine runs a bit faster, than other examples here
Since Python 3.6 there is a method choices
from the random
module.
Python 3.6.1 (v3.6.1:69c0db5050, Mar 21 2017, 01:21:04)
Type 'copyright', 'credits' or 'license' for more information
IPython 6.0.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import random
In [2]: random.choices(
...: population=[['a','b'], ['b','a'], ['c','b']],
...: weights=[0.2, 0.2, 0.6],
...: k=10
...: )
Out[2]:
[['c', 'b'],
['c', 'b'],
['b', 'a'],
['c', 'b'],
['c', 'b'],
['b', 'a'],
['c', 'b'],
['b', 'a'],
['c', 'b'],
['c', 'b']]
Note that random.choices
will sample with replacement, per the docs:
Return a
k
sized list of elements chosen from the population with replacement.
Note for completeness of answer:
When a sampling unit is drawn from a finite population and is returned to that population, after its characteristic(s) have been recorded, before the next unit is drawn, the sampling is said to be "with replacement". It basically means each element may be chosen more than once.
If you need to sample without replacement, then as @ronan-paixão's brilliant answer states, you can use numpy.choice
, whose replace
argument controls such behaviour.
Comparing dates in JavaScript is quite easy... JavaScript has built-in comparison system for dates which makes it so easy to do the comparison...
Just follow these steps for comparing 2 dates value, for example you have 2 inputs which each has a Date value in String
and you to compare them...
1. you have 2 string values you get from an input and you'd like to compare them, they are as below:
var date1 = '01/12/2018';
var date2 = '12/12/2018';
2. They need to be Date Object
to be compared as date values, so simply convert them to date, using new Date()
, I just re-assign them for simplicity of explanation, but you can do it anyway you like:
date1 = new Date(date1);
date2 = new Date(date2);
3. Now simply compare them, using the >
<
>=
<=
date1 > date2; //false
date1 < date2; //true
date1 >= date2; //false
date1 <= date2; //true
Add this line to your AndroidManifest.xml:
<activity android:name=".OrderScreen" />
A note on the bundle display name -- this is the right way to change the name in your app menu, but you'll likely have to reset content and settings in your iOS simulator before you see the change actually take effect.
The return type of a lambda (in C++11) can be deduced, but only when there is exactly one statement, and that statement is a return
statement that returns an expression (an initializer list is not an expression, for example). If you have a multi-statement lambda, then the return type is assumed to be void.
Therefore, you should do this:
remove_if(rawLines.begin(), rawLines.end(), [&expression, &start, &end, &what, &flags](const string& line) -> bool
{
start = line.begin();
end = line.end();
bool temp = boost::regex_search(start, end, what, expression, flags);
return temp;
})
But really, your second expression is a lot more readable.
SqlConnection conn = new SqlConnection(@"Data Source=TOM-PC\sqlexpress;Initial Catalog=Northwind;User ID=sa;Password=xyz") ;
conn.Open();
SqlCommand sc = new SqlCommand("select customerid,contactname from customers", conn);
SqlDataReader reader;
reader = sc.ExecuteReader();
DataTable dt = new DataTable();
dt.Columns.Add("customerid", typeof(string));
dt.Columns.Add("contactname", typeof(string));
dt.Load(reader);
comboBox1.ValueMember = "customerid";
comboBox1.DisplayMember = "contactname";
comboBox1.DataSource = dt;
conn.Close();
This The Best Code For restore sql by php can use 100% Goooood! Thank A lot
$file_content = file('myfile.sql');
$query = "";
foreach($file_content as $sql_line){
if(trim($sql_line) != "" && strpos($sql_line, "--") === false){
$query .= $sql_line;
if (substr(rtrim($query), -1) == ';'){
echo $query;
$result = mysql_query($query)or die(mysql_error());
$query = "";
}
}
}
The random_state is an integer value which implies the selection of a random combination of train and test. When you set the test_size as 1/4 the there is a set generated of permutation and combination of train and test and each combination has one state. Suppose you have a dataset---> [1,2,3,4]
Train | Test | State
[1,2,3] [4] **0**
[1,3,4] [2] **1**
[4,2,3] [1] **2**
[2,4,1] [3] **3**
We need it because while param tuning of model same state will considered again and again. So that there won't be any inference with the accuracy.
But in case of Random forest there is also similar story but in a different way w.r.t the variables.
// set notification audio
builder.setDefaults(Notification.DEFAULT_VIBRATE);
//OR
builder.setDefaults(Notification.DEFAULT_SOUND);
Windows : ctrl + F12
MacOS : cmd + F12
Above commands will show the functions/methods in the current class.
Press SHIFT TWO times if you want to search both class and method in the whole project.
* This was edited to allow for children of the target class to trigger the events. See bottom of the answer for details. *
An alternative answer to add an event listener to a class where items are frequently being added and removed. This is inspired by jQuery's on
function where you can pass in a selector for a child element that the event is listening on.
var base = document.querySelector('#base'); // the container for the variable content
var selector = '.card'; // any css selector for children
base.addEventListener('click', function(event) {
// find the closest parent of the event target that
// matches the selector
var closest = event.target.closest(selector);
if (closest && base.contains(closest)) {
// handle class event
}
});
Fiddle: https://jsfiddle.net/u6oje7af/94/
This will listen for clicks on children of the base
element and if the target of a click has a parent matching the selector, the class event will be handled. You can add and remove elements as you like without having to add more click listeners to the individual elements. This will catch them all even for elements added after this listener was added, just like the jQuery functionality (which I imagine is somewhat similar under the hood).
This depends on the events propagating, so if you stopPropagation
on the event somewhere else, this may not work. Also, the closest
function has some compatibility issues with IE apparently (what doesn't?).
This could be made into a function if you need to do this type of action listening repeatedly, like
function addChildEventListener(base, eventName, selector, handler) {
base.addEventListener(eventName, function(event) {
var closest = event.target.closest(selector);
if (closest && base.contains(closest)) {
// passes the event to the handler and sets `this`
// in the handler as the closest parent matching the
// selector from the target element of the event
handler.call(closest, event);
}
});
}
=========================================
EDIT: This post originally used the matches
function for DOM elements on the event target, but this restricted the targets of events to the direct class only. It has been updated to use the closest
function instead, allowing for events on children of the desired class to trigger the events as well. The original matches
code can be found at the original fiddle:
https://jsfiddle.net/u6oje7af/23/
Here you go:
<html>_x000D_
<head>_x000D_
<title>Cols</title>_x000D_
<style>_x000D_
#left {_x000D_
width: 200px;_x000D_
float: left;_x000D_
}_x000D_
#right {_x000D_
margin-left: 200px;_x000D_
/* Change this to whatever the width of your left column is*/_x000D_
}_x000D_
.clear {_x000D_
clear: both;_x000D_
}_x000D_
</style>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<div id="container">_x000D_
<div id="left">_x000D_
Hello_x000D_
</div>_x000D_
<div id="right">_x000D_
<div style="background-color: red; height: 10px;">Hello</div>_x000D_
</div>_x000D_
<div class="clear"></div>_x000D_
</div>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
See it in action here: http://jsfiddle.net/FVLMX/
Here is how I have been able to generate multiple maps on the same page using Google Map API V3
. Kindly note that this is an off the cuff code that addresses the issue above.
The HTML bit
<div id="map_canvas" style="width:700px; height:500px; margin-left:80px;"></div>
<div id="map_canvas2" style="width:700px; height:500px; margin-left:80px;"></div>
Javascript for map initialization
<script type="text/javascript">
var map, map2;
function initialize(condition) {
// create the maps
var myOptions = {
zoom: 14,
center: new google.maps.LatLng(0.0, 0.0),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
map2 = new google.maps.Map(document.getElementById("map_canvas2"), myOptions);
}
</script>
It may be concluded from answers here that NOT IN (subquery)
doesn't handle nulls correctly and should be avoided in favour of NOT EXISTS
. However, such a conclusion may be premature. In the following scenario, credited to Chris Date (Database Programming and Design, Vol 2 No 9, September 1989), it is NOT IN
that handles nulls correctly and returns the correct result, rather than NOT EXISTS
.
Consider a table sp
to represent suppliers (sno
) who are known to supply parts (pno
) in quantity (qty
). The table currently holds the following values:
VALUES ('S1', 'P1', NULL),
('S2', 'P1', 200),
('S3', 'P1', 1000)
Note that quantity is nullable i.e. to be able to record the fact a supplier is known to supply parts even if it is not known in what quantity.
The task is to find the suppliers who are known supply part number 'P1' but not in quantities of 1000.
The following uses NOT IN
to correctly identify supplier 'S2' only:
WITH sp AS
( SELECT *
FROM ( VALUES ( 'S1', 'P1', NULL ),
( 'S2', 'P1', 200 ),
( 'S3', 'P1', 1000 ) )
AS T ( sno, pno, qty )
)
SELECT DISTINCT spx.sno
FROM sp spx
WHERE spx.pno = 'P1'
AND 1000 NOT IN (
SELECT spy.qty
FROM sp spy
WHERE spy.sno = spx.sno
AND spy.pno = 'P1'
);
However, the below query uses the same general structure but with NOT EXISTS
but incorrectly includes supplier 'S1' in the result (i.e. for which the quantity is null):
WITH sp AS
( SELECT *
FROM ( VALUES ( 'S1', 'P1', NULL ),
( 'S2', 'P1', 200 ),
( 'S3', 'P1', 1000 ) )
AS T ( sno, pno, qty )
)
SELECT DISTINCT spx.sno
FROM sp spx
WHERE spx.pno = 'P1'
AND NOT EXISTS (
SELECT *
FROM sp spy
WHERE spy.sno = spx.sno
AND spy.pno = 'P1'
AND spy.qty = 1000
);
So NOT EXISTS
is not the silver bullet it may have appeared!
Of course, source of the problem is the presence of nulls, therefore the 'real' solution is to eliminate those nulls.
This can be achieved (among other possible designs) using two tables:
sp
suppliers known to supply partsspq
suppliers known to supply parts in known quantitiesnoting there should probably be a foreign key constraint where spq
references sp
.
The result can then be obtained using the 'minus' relational operator (being the EXCEPT
keyword in Standard SQL) e.g.
WITH sp AS
( SELECT *
FROM ( VALUES ( 'S1', 'P1' ),
( 'S2', 'P1' ),
( 'S3', 'P1' ) )
AS T ( sno, pno )
),
spq AS
( SELECT *
FROM ( VALUES ( 'S2', 'P1', 200 ),
( 'S3', 'P1', 1000 ) )
AS T ( sno, pno, qty )
)
SELECT sno
FROM spq
WHERE pno = 'P1'
EXCEPT
SELECT sno
FROM spq
WHERE pno = 'P1'
AND qty = 1000;
The response from server is JSON String format. If the set dataType as 'json' jquery will attempt to use it directly. You need to set dataType as 'text' and then parse it manually.
$.ajax({
type: 'GET',
dataType: "text", // You need to use dataType text else it will try to parse it.
url: "http://someotherdomain.com/service.svc",
success: function (responseData, textStatus, jqXHR) {
console.log("in");
var data = JSON.parse(responseData['AuthenticateUserResult']);
console.log(data);
},
error: function (responseData, textStatus, errorThrown) {
alert('POST failed.');
}
});
The problem was that you opened the Node.js repl while everyone automatically assumed you were in the command prompt. For what it's worth you can run a javascript file from the repl with the .load
command. For example:
.load c:/users/username/documents/script.js
The same command can also be used in the command prompt if you first start node inside the command prompt by entering node
with no arguments (assuming node is in PATH).
I find it fascinating that 1)everyone assumed you were in the command prompt rather than repl, 2)no one seems to know about .load
, and 3)this has 273 upvotes, proving that a lot of other node.js beginners are similarly confused.
If you have Perl 5.14 or greater, you can use the /r
option with the substitution operator to perform non-destructive substitution:
print "bla: ", $myvar =~ s/a/b/r, "\n";
In earlier versions you can achieve the same using a do()
block with a temporary lexical variable, e.g.:
print "bla: ", do { (my $tmp = $myvar) =~ s/a/b/; $tmp }, "\n";
If you need one item to be left aligned (like a header) but then multiple items right aligned (like 3 images), then you would do something like this:
h1 {
flex-basis: 100%; // forces this element to take up any remaining space
}
img {
margin: 0 5px; // small margin between images
height: 50px; // image width will be in relation to height, in case images are large - optional if images are already the proper size
}
Here's what that will look like (only relavent CSS was included in snippet above)
in case it helps someone, my issue seems to be just because I was using a subfolder under my home directory, even though permissions seem correct and I don't have SELinux or anything like that. changing it to be under /var/www/something/something made it work.
(if I ever found the real cause, and remember this answer, I'll update it)
As per the official documents, it's not anymore advisable to use matrix class since it will be removed in the future.
https://numpy.org/doc/stable/reference/generated/numpy.matrix.html
As other answers already state that you can achieve all the operations with NumPy arrays.
map.at("key") throws exception if missing key
If k does not match the key of any element in the container, the function throws an out_of_range exception.
2007 is more powerful with ribbon..:=) To add new series in chart do: Select Chart, then click Design in Chart Tools on the ribbon, On the Design ribbon, select "Select Data" in Data Group, Then you will see the button for Add to add new series.
Hope that will help.
int g[] = {9,8};
This declares an object of type int[2], and initializes its elements to {9,8}
int (*j) = g;
This declares an object of type int *, and initializes it with a pointer to the first element of g.
The fact that the second declaration initializes j with something other than g is pretty strange. C and C++ just have these weird rules about arrays, and this is one of them. Here the expression g
is implicitly converted from an lvalue referring to the object g into an rvalue of type int*
that points at the first element of g.
This conversion happens in several places. In fact it occurs when you do g[0]
. The array index operator doesn't actually work on arrays, only on pointers. So the statement int x = j[0];
works because g[0]
happens to do that same implicit conversion that was done when j
was initialized.
A pointer to an array is declared like this
int (*k)[2];
and you're exactly right about how this would be used
int x = (*k)[0];
(note how "declaration follows use", i.e. the syntax for declaring a variable of a type mimics the syntax for using a variable of that type.)
However one doesn't typically use a pointer to an array. The whole purpose of the special rules around arrays is so that you can use a pointer to an array element as though it were an array. So idiomatic C generally doesn't care that arrays and pointers aren't the same thing, and the rules prevent you from doing much of anything useful directly with arrays. (for example you can't copy an array like: int g[2] = {1,2}; int h[2]; h = g;
)
Examples:
void foo(int c[10]); // looks like we're taking an array by value.
// Wrong, the parameter type is 'adjusted' to be int*
int bar[3] = {1,2};
foo(bar); // compile error due to wrong types (int[3] vs. int[10])?
// No, compiles fine but you'll probably get undefined behavior at runtime
// if you want type checking, you can pass arrays by reference (or just use std::array):
void foo2(int (&c)[10]); // paramater type isn't 'adjusted'
foo2(bar); // compiler error, cannot convert int[3] to int (&)[10]
int baz()[10]; // returning an array by value?
// No, return types are prohibited from being an array.
int g[2] = {1,2};
int h[2] = g; // initializing the array? No, initializing an array requires {} syntax
h = g; // copying an array? No, assigning to arrays is prohibited
Because arrays are so inconsistent with the other types in C and C++ you should just avoid them. C++ has std::array
that is much more consistent and you should use it when you need statically sized arrays. If you need dynamically sized arrays your first option is std::vector.
The solution for your question is:
public static void restartActivity(Activity act){
Intent intent=new Intent();
intent.setClass(act, act.getClass());
((Activity)act).startActivity(intent);
((Activity)act).finish();
}
You need to cast to activity context to start new activity and as well as to finish the current activity.
Hope this helpful..and works for me.
I have personally found the dzone cheatsheet on core java to be really handy in the beginning. However the needs change as we grow and get used to things.
There are a few listed (at the end of the post) in on this java learning resources article too
For the most practical use, in recent past I have found Java API doc to be the best place to cheat code and learn new api. This helps specially when you want to focus on latest version of java.
mkyong - is one my fav places to cheat a lot of code for quick start - http://www.mkyong.com/
And last but not the least, Stackoverflow is king of all small handy code snippets. Just google a stuff you are trying and there is a chance that a page will be top of search results, most of my google search results end at stackoverflow. Many of the common questions are available here - https://stackoverflow.com/questions/tagged/java?sort=frequent
since the data ex1221new was not given, so I have created a dummy data and added it to a data frame. Also, the question which was asked has few changes in codes like then ggplot package has deprecated the use of
"scale_area()" and nows uses scale_size_area()
"opts()" has changed to theme()
In my answer,I have stored the plot in mygraph variable and then I have used
mygraph$labels$x="Discharge of materials" #changes x axis title
mygraph$labels$y="Area Affected" # changes y axis title
And the work is done. Below is the complete answer.
install.packages("Sleuth2")
library(Sleuth2)
library(ggplot2)
ex1221new<-data.frame(Discharge<-c(100:109),Area<-c(120:129),NO3<-seq(2,5,length.out = 10))
discharge<-ex1221new$Discharge
area<-ex1221new$Area
nitrogen<-ex1221new$NO3
p <- ggplot(ex1221new, aes(discharge, area), main="Point")
mygraph<-p + geom_point(aes(size= nitrogen)) +
scale_size_area() + ggtitle("Weighted Scatterplot of Watershed Area vs. Discharge and Nitrogen Levels (PPM)")+
theme(
plot.title = element_text(color="Blue", size=30, hjust = 0.5),
# change the styling of both the axis simultaneously from this-
axis.title = element_text(color = "Green", size = 20, family="Courier",)
# you can change the axis title from the code below
mygraph$labels$x="Discharge of materials" #changes x axis title
mygraph$labels$y="Area Affected" # changes y axis title
mygraph
Also, you can change the labels title from the same formula used above -
mygraph$labels$size= "N2" #size contains the nitrogen level
I think realpath() may be the best way to validate if a path exist http://www.php.net/realpath
Here is an example function:
<?php
/**
* Checks if a folder exist and return canonicalized absolute pathname (long version)
* @param string $folder the path being checked.
* @return mixed returns the canonicalized absolute pathname on success otherwise FALSE is returned
*/
function folder_exist($folder)
{
// Get canonicalized absolute pathname
$path = realpath($folder);
// If it exist, check if it's a directory
if($path !== false AND is_dir($path))
{
// Return canonicalized absolute pathname
return $path;
}
// Path/folder does not exist
return false;
}
Short version of the same function
<?php
/**
* Checks if a folder exist and return canonicalized absolute pathname (sort version)
* @param string $folder the path being checked.
* @return mixed returns the canonicalized absolute pathname on success otherwise FALSE is returned
*/
function folder_exist($folder)
{
// Get canonicalized absolute pathname
$path = realpath($folder);
// If it exist, check if it's a directory
return ($path !== false AND is_dir($path)) ? $path : false;
}
Output examples
<?php
/** CASE 1 **/
$input = '/some/path/which/does/not/exist';
var_dump($input); // string(31) "/some/path/which/does/not/exist"
$output = folder_exist($input);
var_dump($output); // bool(false)
/** CASE 2 **/
$input = '/home';
var_dump($input);
$output = folder_exist($input); // string(5) "/home"
var_dump($output); // string(5) "/home"
/** CASE 3 **/
$input = '/home/..';
var_dump($input); // string(8) "/home/.."
$output = folder_exist($input);
var_dump($output); // string(1) "/"
Usage
<?php
$folder = '/foo/bar';
if(FALSE !== ($path = folder_exist($folder)))
{
die('Folder ' . $path . ' already exist');
}
mkdir($folder);
// Continue do stuff
For a more detailed answer on creating your own colormaps, I highly suggest visiting this page
If that answer is too much work, you can quickly make your own list of colors and pass them to the color
parameter. All the colormaps are in the cm
matplotlib module. Let's get a list of 30 RGB (plus alpha) color values from the reversed inferno colormap. To do so, first get the colormap and then pass it a sequence of values between 0 and 1. Here, we use np.linspace
to create 30 equally-spaced values between .4 and .8 that represent that portion of the colormap.
from matplotlib import cm
color = cm.inferno_r(np.linspace(.4, .8, 30))
color
array([[ 0.865006, 0.316822, 0.226055, 1. ],
[ 0.851384, 0.30226 , 0.239636, 1. ],
[ 0.832299, 0.283913, 0.257383, 1. ],
[ 0.817341, 0.270954, 0.27039 , 1. ],
[ 0.796607, 0.254728, 0.287264, 1. ],
[ 0.775059, 0.239667, 0.303526, 1. ],
[ 0.758422, 0.229097, 0.315266, 1. ],
[ 0.735683, 0.215906, 0.330245, 1. ],
.....
Then we can use this to plot, using the data from the original post:
import random
x = [{i: random.randint(1, 5)} for i in range(30)]
df = pd.DataFrame(x)
df.plot(kind='bar', stacked=True, color=color, legend=False, figsize=(12, 4))
I use WPF / Caliburn Micro a found that "dfaivre" has made a general and workable solution here: http://caliburnmicro.codeplex.com/discussions/222892
The best solution is to install the different Python versions in multiple paths.
eg. C:\Python27 for 2.7, and C:\Python33 for 3.3.
Read this for more info: How to run multiple Python versions on Windows
Here is my solution with C# in Unity.
private bool _isPointOnLine( Vector2 ptLineStart, Vector2 ptLineEnd, Vector2 ptPoint )
{
bool bRes = false;
if((Mathf.Approximately(ptPoint.x, ptLineStart.x) || Mathf.Approximately(ptPoint.x, ptLineEnd.x)))
{
if(ptPoint.y > ptLineStart.y && ptPoint.y < ptLineEnd.y)
{
bRes = true;
}
}
else if((Mathf.Approximately(ptPoint.y, ptLineStart.y) || Mathf.Approximately(ptPoint.y, ptLineEnd.y)))
{
if(ptPoint.x > ptLineStart.x && ptPoint.x < ptLineEnd.x)
{
bRes = true;
}
}
return bRes;
}
$('#frmTest').submit(function(){
if(!$('#frmTest input[type="checkbox"]').is(':checked')){
alert("Please check at least one.");
return false;
}
});
is(':checked') will return true if at least one or more of the checkboxes are checked.
An explanation from a liberal arts major, not a comp sci major:
When people say that a language or language feature is type safe, they mean that the language will help prevent you from, for example, passing something that isn't an integer to some logic that expects an integer.
For example, in C#, I define a function as:
void foo(int arg)
The compiler will then stop me from doing this:
// call foo
foo("hello world")
In other languages, the compiler would not stop me (or there is no compiler...), so the string would be passed to the logic and then probably something bad will happen.
Type safe languages try to catch more at "compile time".
On the down side, with type safe languages, when you have a string like "123" and you want to operate on it like an int, you have to write more code to convert the string to an int, or when you have an int like 123 and want to use it in a message like, "The answer is 123", you have to write more code to convert/cast it to a string.
What you are looking for is probably this:
ImageView myImageView;
myImageView = mDialog.findViewById(R.id.image_id);
String src = "imageFileName"
int drawableId = this.getResources().getIdentifier(src, "drawable", context.getPackageName())
popupImageView.setImageResource(drawableId);
Let me know if this was helpful :)
Batch files are processed row by row and terminate whenever you call an executable directly.
- To make the batch file wait for the process to terminate and continue, put call
in front of it.
- To make the batch file continue without waiting, put start ""
in front of it.
I recommend using this single line script to accomplish your goal:
@call cscript "%~dp0necdaily.vbs"
(because this is a single line, you can use @ instead of @echo off)
If you believe your script can only be called from the SysWOW64 versions of cmd.exe, you might try:
@%WINDIR%\SysWOW64\cmd.exe /c call cscript "%~dp0necdaily.vbs"
If you need the window to remain, you can replace /c with /k
I'm going to take a chance here and actually advise against this. I suspect that people wanting to view your PDFs will already have their viewers set up the way they want, and will not take kindly to you taking that choice away from them :-)
Why not just stream down the content with the correct content specifier?
That way, newbies will get whatever their browser developer has a a useful default, and those of us that know how to configure such things will see it as we want to.
A class contains data field descriptions (or properties, fields, data members, attributes), i.e., field types and names, that will be associated with either per-instance or per-class state variables at program run time.
Using your example::
list1 <- list()
list1[1] = 1
list1[2] = 2
list2 <- list()
list2[1] = 'a'
list2[2] = 'b'
list_all <- list(list1, list2)
Use '[[' to retrieve an element of a list:
b = list_all[[1]]
b
[[1]]
[1] 1
[[2]]
[1] 2
class(b)
[1] "list"
You can try this:
/*iPad landscape oriented styles */
@media only screen and (device-width:768px)and (orientation:landscape){
.yourstyle{
}
}
/*iPad Portrait oriented styles */
@media only screen and (device-width:768px)and (orientation:portrait){
.yourstyle{
}
}
Add MultipleActiveResultSets=true
to the provider part of your connection string
example in the file appsettings.json
"ConnectionStrings": {
"EmployeeDBConnection": "server=(localdb)\\MSSQLLocalDB;database=YourDatabasename;Trusted_Connection=true;MultipleActiveResultSets=true"}
you will need to specify which branch and which remote when pushing:
? git init ./
? git add Readme.md
? git commit -m "Initial Commit"
? git remote add github <project url>
? git push github master
Will work as expected.
You can set this up by default by doing:
? git branch -u github/master master
which will allow you to do a git push
from master without specifying the remote or branch.
For me, ensuring that I had:
#include <iostream>
#include<string>
using namespace std;
in my file made something like to_string(12345)
work.
First, always sudo nginx -t
to verify your config files are good.
I ran into the same problem. The reason I had the issue was twofold. First, I had accidentally copied a log file into my site-enabled folder. I deleted the log file and made sure that all the files in sites-enabled were proper nginx site configs. I also noticed two of my virtual hosts were listening for the same domain. So I made sure that each of my virtual hosts had unique domain names.
sudo service nginx restart
Then it worked.
My tags were correct but Facebook only scrapes every 24 hours, according to their documentation. Using the Facebook Lint page got the image into Facebook.
Enter your URL here and FB will update the metadata from your page:
https://developers.facebook.com/tools/debug (updated link)
try {
PackageInfo packageInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
String versionName = packageInfo.versionName;
int versionCode = packageInfo.versionCode;
//binding.tvVersionCode.setText("v" + packageInfo.versionName);
}
catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
Classes are simply blueprints to create objects from. The constructor is some code that are run every time you create an object. Therefor it does'nt make sense to have two constructors. What happens is that the second over write the first.
What you typically use them for is create variables for that object like this:
>>> class testing:
... def __init__(self, init_value):
... self.some_value = init_value
So what you could do then is to create an object from this class like this:
>>> testobject = testing(5)
The testobject will then have an object called some_value
that in this sample will be 5.
>>> testobject.some_value
5
But you don't need to set a value for each object like i did in my sample. You can also do like this:
>>> class testing:
... def __init__(self):
... self.some_value = 5
then the value of some_value will be 5 and you don't have to set it when you create the object.
>>> testobject = testing()
>>> testobject.some_value
5
the >>> and ... in my sample is not what you write. It's how it would look in pyshell...
so do the following edit my.cnf:
[mysqld]
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/English
bind-address = xxx.xxx.xxx.xxx
# skip-networking
after edit hit service mysqld restart
login into mysql and hit this query:
GRANT ALL ON foo.* TO bar@'xxx.xxx.xxx.xxx' IDENTIFIED BY 'PASSWORD';
thats it make sure your iptables allow connection from 3306 if not put the following:
iptables -A INPUT -i lo -p tcp --dport 3306 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 3306 -j ACCEPT
As RPM1984 refers to, this is mostly likely caused by the fact that your script is loading before jQuery is loaded.
After adding the ICO file to your apps resources, you can use references it using My.Resources.YourIconNameWithoutExtension
For example if I had a file called Logo-square.ico added to my apps resources, I can set it to an icon with:
NotifyIcon1.Icon = My.Resources.Logo_square
Assuming you have access to them (the properties you've declared are protected
), you use them like this:
Person tom = new Person();
tom.Title = "A title";
string hisTitle = tom.Title;
These are properties. They're basically pairs of getter/setter methods (although you can have just a getter, or just a setter) with appropriate metadata. The example you've given is of automatically implemented properties where the compiler is adding a backing field. You can write the code yourself though. For example, the Title
property you've declared is like this:
private string title; // Backing field
protected string Title
{
get { return title; } // Getter
set { title = value; } // Setter
}
... except that the backing field is given an "unspeakable name" - one you can't refer to in your C# code. You're forced to go through the property itself.
You can make one part of a property more restricted than another. For example, this is quite common:
private string foo;
public string Foo
{
get { return foo; }
private set { foo = value; }
}
or as an automatically implemented property:
public string Foo { get; private set; }
Here the "getter" is public but the "setter" is private.
??!
is a trigraph that translates to |
. So it says:
!ErrorHasOccured() || HandleError();
which, due to short circuiting, is equivalent to:
if (ErrorHasOccured())
HandleError();
Guru of the Week (deals with C++ but relevant here), where I picked this up.
Possible origin of trigraphs or as @DwB points out in the comments it's more likely due to EBCDIC being difficult (again). This discussion on the IBM developerworks board seems to support that theory.
From ISO/IEC 9899:1999 §5.2.1.1, footnote 12 (h/t @Random832):
The trigraph sequences enable the input of characters that are not defined in the Invariant Code Set as described in ISO/IEC 646, which is a subset of the seven-bit US ASCII code set.
Change
<serviceMetadata httpsGetEnabled="true"/>
to
<serviceMetadata httpsGetEnabled="false"/>
You're telling WCF to use https for the metadata endpoint and I see that your'e exposing your service on http, and then you get the error in the title.
You also have to set <security mode="None" />
if you want to use HTTP as your URL suggests.
SURE: Simply,
This is what you need :
io.to(socket.id).emit("event", data);
whenever a user joined to the server, socket details will be generated including ID. This is the ID really helps to send a message to particular people.
first we need to store all the socket.ids in array,
var people={};
people[name] = socket.id;
here name is the receiver name. Example:
people["ccccc"]=2387423cjhgfwerwer23;
So, now we can get that socket.id with the receiver name whenever we are sending message:
for this we need to know the receivername. You need to emit receiver name to the server.
final thing is:
socket.on('chat message', function(data){
io.to(people[data.receiver]).emit('chat message', data.msg);
});
Hope this works well for you.
Good Luck!!
ListBox will try to expand in height that is available.. When you set the Height property of ListBox you get a scrollviewer that actually works...
If you wish your ListBox to accodate the height available, you might want to try to regulate the Height from your parent controls.. In a Grid for example, setting the Height to Auto in your RowDefinition might do the trick...
HTH
it still happens in Android Studio 1.5.1. on Ubuntu and you can solve it simply changing a setting from Gradle:
1) on app/build.gradle dependencies change from:
compile 'com.android.support:design:23.2.0'
to:
compile 'com.android.support:design:23.1.0'
2) rebuild project
3) refresh view
Best regards,
/Angel
The basic difference is that getOne
is lazy loaded and findOne
is not.
Consider the following example:
public static String NON_EXISTING_ID = -1;
...
MyEntity getEnt = myEntityRepository.getOne(NON_EXISTING_ID);
MyEntity findEnt = myEntityRepository.findOne(NON_EXISTING_ID);
if(findEnt != null) {
findEnt.getText(); // findEnt is null - this code is not executed
}
if(getEnt != null) {
getEnt.getText(); // Throws exception - no data found, BUT getEnt is not null!!!
}
Simply add additional characters like "=" or any other and make it a multiple of 4 before you try decoding the target string value. Something like;
if len(value) % 4 != 0: #check if multiple of 4
while len(value) % 4 != 0:
value = value + "="
req_str = base64.b64decode(value)
else:
req_str = base64.b64decode(value)
Optional should mainly be used for results of Services anyway. In the service you know what you have at hand and return Optional.of(someValue) if you have a result and return Optional.empty() if you don't. In this case, someValue should never be null and still, you return an Optional.
Do you mean altering the table after it has been created? If so you need to use alter table, in particular:
ALTER TABLE tablename MODIFY COLUMN new-column-definition
e.g.
ALTER TABLE test MODIFY COLUMN locationExpect VARCHAR(120);
Here is code by AbacusUtil
// ArrayList
List<String> list = N.asList("Buenos Aires", "Córdoba", "La Plata");
// HashSet
Set<String> set = N.asSet("Buenos Aires", "Córdoba", "La Plata");
// HashMap
Map<String, Integer> map = N.asMap("Buenos Aires", 1, "Córdoba", 2, "La Plata", 3);
// Or for Immutable List/Set/Map
ImmutableList.of("Buenos Aires", "Córdoba", "La Plata");
ImmutableSet.of("Buenos Aires", "Córdoba", "La Plata");
ImmutableSet.of("Buenos Aires", 1, "Córdoba", 2, "La Plata", 3);
// The most efficient way, which is similar with Arrays.asList(...) in JDK.
// but returns a flexible-size list backed by the specified array.
List<String> set = Array.asList("Buenos Aires", "Córdoba", "La Plata");
Declaration: I'm the developer of AbacusUtil.
I had the same problem and the solution was to encapsulate the json inside this function
jsonp(
.... your json ...
)
I added 40px-height .vspace
element holding the anchor before each of my h1
elements.
<div class="vspace" id="gherkin"></div>
<div class="page-header">
<h1>Gherkin</h1>
</div>
In the CSS:
.vspace { height: 40px;}
It's working great and the space is not chocking.
USE DataBaseName; GO --------- CREATE ROLE --------- CREATE ROLE Doctors ; GO ---- Assign Role To users ------- CREATE USER [Username] FOR LOGIN [Domain\Username] EXEC sp_addrolemember N'Doctors', N'Username' ----- GRANT Permission to Users Assinged with this Role----- GRANT ALL ON Table1, Table2, Table3 TO Doctors; GO
If you want to show/hide an element based on the status of one {{expression}} you can use ng-switch
:
<p ng-switch="foo.bar">I could be shown, or I could be hidden</p>
The paragraph will be displayed when foo.bar is true, hidden when false.
synchronized
is method level/block level access restriction modifier. It will make sure that one thread owns the lock for critical section. Only the thread,which own a lock can enter synchronized
block. If other threads are trying to access this critical section, they have to wait till current owner releases the lock.
volatile
is variable access modifier which forces all threads to get latest value of the variable from main memory. No locking is required to access volatile
variables. All threads can access volatile variable value at same time.
A good example to use volatile variable : Date
variable.
Assume that you have made Date variable volatile
. All the threads, which access this variable always get latest data from main memory so that all threads show real (actual) Date value. You don't need different threads showing different time for same variable. All threads should show right Date value.
Have a look at this article for better understanding of volatile
concept.
Lawrence Dol cleary explained your read-write-update query
.
Regarding your other queries
When is it more suitable to declare variables volatile than access them through synchronized?
You have to use volatile
if you think all threads should get actual value of the variable in real time like the example I have explained for Date variable.
Is it a good idea to use volatile for variables that depend on input?
Answer will be same as in first query.
Refer to this article for better understanding.
This one is based on the one BobStein-VisiBone provided
#define reverse_1byte(b) ( ((uint8_t)b & 0b00000001) ? 0b10000000 : 0 ) | \
( ((uint8_t)b & 0b00000010) ? 0b01000000 : 0 ) | \
( ((uint8_t)b & 0b00000100) ? 0b00100000 : 0 ) | \
( ((uint8_t)b & 0b00001000) ? 0b00010000 : 0 ) | \
( ((uint8_t)b & 0b00010000) ? 0b00001000 : 0 ) | \
( ((uint8_t)b & 0b00100000) ? 0b00000100 : 0 ) | \
( ((uint8_t)b & 0b01000000) ? 0b00000010 : 0 ) | \
( ((uint8_t)b & 0b10000000) ? 0b00000001 : 0 )
I really like this one a lot because the compiler automatically handle the work for you, thus require no further resources.
this can also be extended to 16-Bits...
#define reverse_2byte(b) ( ((uint16_t)b & 0b0000000000000001) ? 0b1000000000000000 : 0 ) | \
( ((uint16_t)b & 0b0000000000000010) ? 0b0100000000000000 : 0 ) | \
( ((uint16_t)b & 0b0000000000000100) ? 0b0010000000000000 : 0 ) | \
( ((uint16_t)b & 0b0000000000001000) ? 0b0001000000000000 : 0 ) | \
( ((uint16_t)b & 0b0000000000010000) ? 0b0000100000000000 : 0 ) | \
( ((uint16_t)b & 0b0000000000100000) ? 0b0000010000000000 : 0 ) | \
( ((uint16_t)b & 0b0000000001000000) ? 0b0000001000000000 : 0 ) | \
( ((uint16_t)b & 0b0000000010000000) ? 0b0000000100000000 : 0 ) | \
( ((uint16_t)b & 0b0000000100000000) ? 0b0000000010000000 : 0 ) | \
( ((uint16_t)b & 0b0000001000000000) ? 0b0000000001000000 : 0 ) | \
( ((uint16_t)b & 0b0000010000000000) ? 0b0000000000100000 : 0 ) | \
( ((uint16_t)b & 0b0000100000000000) ? 0b0000000000010000 : 0 ) | \
( ((uint16_t)b & 0b0001000000000000) ? 0b0000000000001000 : 0 ) | \
( ((uint16_t)b & 0b0010000000000000) ? 0b0000000000000100 : 0 ) | \
( ((uint16_t)b & 0b0100000000000000) ? 0b0000000000000010 : 0 ) | \
( ((uint16_t)b & 0b1000000000000000) ? 0b0000000000000001 : 0 )
starting from the chad's answer, here is the COMPLETE working solution to parse UML, with propper handling of comments, with just 2 little functions (more than 2 bu you can mix them all). I don't say chad's one didn't work at all, but it had too much issues with badly formated XML files: So you have to be a bit more tricky to handle comments and misplaced spaces/CR/TAB/etc.
The purpose of this answer is to give ready-2-use, out of the box bash functions to anyone needing parsing UML without complex tools using perl, python or anything else. As for me, I cannot install cpan, nor perl modules for the old production OS i'm working on, and python isn't available.
First, a definition of the UML words used in this post:
<!-- comment... -->
<tag attribute="value">content...</tag>
EDIT: updated functions, with handle of:
xml_read_dom() {
# https://stackoverflow.com/questions/893585/how-to-parse-xml-in-bash
local ENTITY IFS=\>
if $ITSACOMMENT; then
read -d \< COMMENTS
COMMENTS="$(rtrim "${COMMENTS}")"
return 0
else
read -d \< ENTITY CONTENT
CR=$?
[ "x${ENTITY:0:1}x" == "x/x" ] && return 0
TAG_NAME=${ENTITY%%[[:space:]]*}
[ "x${TAG_NAME}x" == "x?xmlx" ] && TAG_NAME=xml
TAG_NAME=${TAG_NAME%%:*}
ATTRIBUTES=${ENTITY#*[[:space:]]}
ATTRIBUTES="${ATTRIBUTES//xmi:/}"
ATTRIBUTES="${ATTRIBUTES//xmlns:/}"
fi
# when comments sticks to !-- :
[ "x${TAG_NAME:0:3}x" == "x!--x" ] && COMMENTS="${TAG_NAME:3} ${ATTRIBUTES}" && ITSACOMMENT=true && return 0
# http://tldp.org/LDP/abs/html/string-manipulation.html
# INFO: oh wait it doesn't work on IBM AIX bash 3.2.16(1):
# [ "x${ATTRIBUTES:(-1):1}x" == "x/x" -o "x${ATTRIBUTES:(-1):1}x" == "x?x" ] && ATTRIBUTES="${ATTRIBUTES:0:(-1)}"
[ "x${ATTRIBUTES:${#ATTRIBUTES} -1:1}x" == "x/x" -o "x${ATTRIBUTES:${#ATTRIBUTES} -1:1}x" == "x?x" ] && ATTRIBUTES="${ATTRIBUTES:0:${#ATTRIBUTES} -1}"
return $CR
}
and the second one :
xml_read() {
# https://stackoverflow.com/questions/893585/how-to-parse-xml-in-bash
ITSACOMMENT=false
local MULTIPLE_ATTR LIGHT FORCE_PRINT XAPPLY XCOMMAND XATTRIBUTE GETCONTENT fileXml tag attributes attribute tag2print TAGPRINTED attribute2print XAPPLIED_COLOR PROSTPROCESS USAGE
local TMP LOG LOGG
LIGHT=false
FORCE_PRINT=false
XAPPLY=false
MULTIPLE_ATTR=false
XAPPLIED_COLOR=g
TAGPRINTED=false
GETCONTENT=false
PROSTPROCESS=cat
Debug=${Debug:-false}
TMP=/tmp/xml_read.$RANDOM
USAGE="${C}${FUNCNAME}${c} [-cdlp] [-x command <-a attribute>] <file.xml> [tag | \"any\"] [attributes .. | \"content\"]
${nn[2]} -c = NOCOLOR${END}
${nn[2]} -d = Debug${END}
${nn[2]} -l = LIGHT (no \"attribute=\" printed)${END}
${nn[2]} -p = FORCE PRINT (when no attributes given)${END}
${nn[2]} -x = apply a command on an attribute and print the result instead of the former value, in green color${END}
${nn[1]} (no attribute given will load their values into your shell; use '-p' to print them as well)${END}"
! (($#)) && echo2 "$USAGE" && return 99
(( $# < 2 )) && ERROR nbaram 2 0 && return 99
# getopts:
while getopts :cdlpx:a: _OPT 2>/dev/null
do
{
case ${_OPT} in
c) PROSTPROCESS="${DECOLORIZE}" ;;
d) local Debug=true ;;
l) LIGHT=true; XAPPLIED_COLOR=END ;;
p) FORCE_PRINT=true ;;
x) XAPPLY=true; XCOMMAND="${OPTARG}" ;;
a) XATTRIBUTE="${OPTARG}" ;;
*) _NOARGS="${_NOARGS}${_NOARGS+, }-${OPTARG}" ;;
esac
}
done
shift $((OPTIND - 1))
unset _OPT OPTARG OPTIND
[ "X${_NOARGS}" != "X" ] && ERROR param "${_NOARGS}" 0
fileXml=$1
tag=$2
(( $# > 2 )) && shift 2 && attributes=$*
(( $# > 1 )) && MULTIPLE_ATTR=true
[ -d "${fileXml}" -o ! -s "${fileXml}" ] && ERROR empty "${fileXml}" 0 && return 1
$XAPPLY && $MULTIPLE_ATTR && [ -z "${XATTRIBUTE}" ] && ERROR param "-x command " 0 && return 2
# nb attributes == 1 because $MULTIPLE_ATTR is false
[ "${attributes}" == "content" ] && GETCONTENT=true
while xml_read_dom; do
# (( CR != 0 )) && break
(( PIPESTATUS[1] != 0 )) && break
if $ITSACOMMENT; then
# oh wait it doesn't work on IBM AIX bash 3.2.16(1):
# if [ "x${COMMENTS:(-2):2}x" == "x--x" ]; then COMMENTS="${COMMENTS:0:(-2)}" && ITSACOMMENT=false
# elif [ "x${COMMENTS:(-3):3}x" == "x-->x" ]; then COMMENTS="${COMMENTS:0:(-3)}" && ITSACOMMENT=false
if [ "x${COMMENTS:${#COMMENTS} - 2:2}x" == "x--x" ]; then COMMENTS="${COMMENTS:0:${#COMMENTS} - 2}" && ITSACOMMENT=false
elif [ "x${COMMENTS:${#COMMENTS} - 3:3}x" == "x-->x" ]; then COMMENTS="${COMMENTS:0:${#COMMENTS} - 3}" && ITSACOMMENT=false
fi
$Debug && echo2 "${N}${COMMENTS}${END}"
elif test "${TAG_NAME}"; then
if [ "x${TAG_NAME}x" == "x${tag}x" -o "x${tag}x" == "xanyx" ]; then
if $GETCONTENT; then
CONTENT="$(trim "${CONTENT}")"
test ${CONTENT} && echo "${CONTENT}"
else
# eval local $ATTRIBUTES => eval test "\"\$${attribute}\"" will be true for matching attributes
eval local $ATTRIBUTES
$Debug && (echo2 "${m}${TAG_NAME}: ${M}$ATTRIBUTES${END}"; test ${CONTENT} && echo2 "${m}CONTENT=${M}$CONTENT${END}")
if test "${attributes}"; then
if $MULTIPLE_ATTR; then
# we don't print "tag: attr=x ..." for a tag passed as argument: it's usefull only for "any" tags so then we print the matching tags found
! $LIGHT && [ "x${tag}x" == "xanyx" ] && tag2print="${g6}${TAG_NAME}: "
for attribute in ${attributes}; do
! $LIGHT && attribute2print="${g10}${attribute}${g6}=${g14}"
if eval test "\"\$${attribute}\""; then
test "${tag2print}" && ${print} "${tag2print}"
TAGPRINTED=true; unset tag2print
if [ "$XAPPLY" == "true" -a "${attribute}" == "${XATTRIBUTE}" ]; then
eval ${print} "%s%s\ " "\${attribute2print}" "\${${XAPPLIED_COLOR}}\"\$(\$XCOMMAND \$${attribute})\"\${END}" && eval unset ${attribute}
else
eval ${print} "%s%s\ " "\${attribute2print}" "\"\$${attribute}\"" && eval unset ${attribute}
fi
fi
done
# this trick prints a CR only if attributes have been printed durint the loop:
$TAGPRINTED && ${print} "\n" && TAGPRINTED=false
else
if eval test "\"\$${attributes}\""; then
if $XAPPLY; then
eval echo "\${g}\$(\$XCOMMAND \$${attributes})" && eval unset ${attributes}
else
eval echo "\$${attributes}" && eval unset ${attributes}
fi
fi
fi
else
echo eval $ATTRIBUTES >>$TMP
fi
fi
fi
fi
unset CR TAG_NAME ATTRIBUTES CONTENT COMMENTS
done < "${fileXml}" | ${PROSTPROCESS}
# http://mywiki.wooledge.org/BashFAQ/024
# INFO: I set variables in a "while loop" that's in a pipeline. Why do they disappear? workaround:
if [ -s "$TMP" ]; then
$FORCE_PRINT && ! $LIGHT && cat $TMP
# $FORCE_PRINT && $LIGHT && perl -pe 's/[[:space:]].*?=/ /g' $TMP
$FORCE_PRINT && $LIGHT && sed -r 's/[^\"]*([\"][^\"]*[\"][,]?)[^\"]*/\1 /g' $TMP
. $TMP
rm -f $TMP
fi
unset ITSACOMMENT
}
and lastly, the rtrim, trim and echo2 (to stderr) functions:
rtrim() {
local var=$@
var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters
echo -n "$var"
}
trim() {
local var=$@
var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters
var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters
echo -n "$var"
}
echo2() { echo -e "$@" 1>&2; }
oh and you will need some neat colorizing dynamic variables to be defined at first, and exported, too:
set -a
TERM=xterm-256color
case ${UNAME} in
AIX|SunOS)
M=$(${print} '\033[1;35m')
m=$(${print} '\033[0;35m')
END=$(${print} '\033[0m')
;;
*)
m=$(tput setaf 5)
M=$(tput setaf 13)
# END=$(tput sgr0) # issue on Linux: it can produces ^[(B instead of ^[[0m, more likely when using screenrc
END=$(${print} '\033[0m')
;;
esac
# 24 shades of grey:
for i in $(seq 0 23); do eval g$i="$(${print} \"\\033\[38\;5\;$((232 + i))m\")" ; done
# another way of having an array of 5 shades of grey:
declare -a colorNums=(238 240 243 248 254)
for num in 0 1 2 3 4; do nn[$num]=$(${print} "\033[38;5;${colorNums[$num]}m"); NN[$num]=$(${print} "\033[48;5;${colorNums[$num]}m"); done
# piped decolorization:
DECOLORIZE='eval sed "s,${END}\[[0-9;]*[m|K],,g"'
Either you know how to create functions and load them via FPATH (ksh) or an emulation of FPATH (bash)
If not, just copy/paste everything on the command line.
xml_read [-cdlp] [-x command <-a attribute>] <file.xml> [tag | "any"] [attributes .. | "content"]
-c = NOCOLOR
-d = Debug
-l = LIGHT (no \"attribute=\" printed)
-p = FORCE PRINT (when no attributes given)
-x = apply a command on an attribute and print the result instead of the former value, in green color
(no attribute given will load their values into your shell as $ATTRIBUTE=value; use '-p' to print them as well)
xml_read server.xml title content # print content between <title></title>
xml_read server.xml Connector port # print all port values from Connector tags
xml_read server.xml any port # print all port values from any tags
With Debug mode (-d) comments and parsed attributes are printed to stderr
You can use the following code which is given below;
Collections.sort(list, Collections.reverseOrder());
or if you are going to use custom comparator you can use as it is given below
Collections.sort(list, Collections.reverseOrder(new CustomComparator());
Where CustomComparator is a comparator class that compares the object which is present in the list.
If you are looking for this:
Here is the link:
http://css-tricks.com/overriding-the-default-text-selection-color-with-css/
in AndroidManifest.xml set theme holo like this:
<activity
android:name="your Fragment or activity"
android:label="@string/xxxxxx"
android:theme="@android:style/Theme.Holo" >
Objective-C
@interface PopupView : UIView
@property (nonatomic, copy) void (^onHideComplete)();
@end
@interface PopupView ()
...
- (IBAction)hideButtonDidTouch:(id sender) {
// Do something
...
// Callback
if (onHideComplete) onHideComplete ();
}
@end
PopupView * popupView = [[PopupView alloc] init]
popupView.onHideComplete = ^() {
...
}
Swift
class PopupView: UIView {
var onHideComplete: (() -> Void)?
@IBAction func hideButtonDidTouch(sender: AnyObject) {
// Do something
....
// Callback
if let callback = self.onHideComplete {
callback ()
}
}
}
var popupView = PopupView ()
popupView.onHideComplete = {
() -> Void in
...
}
I use Node version manager (called n) for it.
npm install -g n
then
n latest
OR
n stable
For Swift 5
Remove Cell
let indexPath = [NSIndexPath(row: yourArray-1, section: 0)]
yourArray.remove(at: buttonTag)
self.tableView.beginUpdates()
self.tableView.deleteRows(at: indexPath as [IndexPath] , with: .fade)
self.tableView.endUpdates()
self.tableView.reloadData()// Not mendatory, But In my case its requires
Add new cell
yourArray.append(4)
tableView.beginUpdates()
tableView.insertRows(at: [
(NSIndexPath(row: yourArray.count-1, section: 0) as IndexPath)], with: .automatic)
tableView.endUpdates()
Open services.msc directly from command prompt and disabled SQL Server reporting services
& SQL Server analysis services.
Always have handy the un-minified CSS for bootstrap so you can see what styles they have on their components, then create a CSS file AFTER it, if you don't use LESS and over-write their mixins or whatever
This is the default modal css for 768px and up:
@media (min-width: 768px) {
.modal-dialog {
width: 600px;
margin: 30px auto;
}
...
}
They have a class modal-lg
for larger widths
@media (min-width: 992px) {
.modal-lg {
width: 900px;
}
}
If you need something twice the 600px size, and something fluid, do something like this in your CSS after the Bootstrap css and assign that class to the modal-dialog.
@media (min-width: 768px) {
.modal-xl {
width: 90%;
max-width:1200px;
}
}
HTML
<div class="modal-dialog modal-xl">
Demo: http://jsbin.com/yefas/1
You can use Type.GetType(string)
, but you'll need to know the full class name including namespace, and if it's not in the current assembly or mscorlib you'll need the assembly name instead. (Ideally, use Assembly.GetType(typeName)
instead - I find that easier in terms of getting the assembly reference right!)
For instance:
// "I know String is in the same assembly as Int32..."
Type stringType = typeof(int).Assembly.GetType("System.String");
// "It's in the current assembly"
Type myType = Type.GetType("MyNamespace.MyType");
// "It's in System.Windows.Forms.dll..."
Type formType = Type.GetType ("System.Windows.Forms.Form, " +
"System.Windows.Forms, Version=2.0.0.0, Culture=neutral, " +
"PublicKeyToken=b77a5c561934e089");
Why not serialize the whole list at once?
FileOutputStream fout = new FileOutputStream("G:\\address.ser");
ObjectOutputStream oos = new ObjectOutputStream(fout);
oos.writeObject(MyClassList);
Assuming, of course, that MyClassList is an ArrayList
or LinkedList
, or another Serializable
collection.
In the case of reading it back, in your code you ready only one item, there is no loop to gather all the item written.
Something like...
greetings = 'Hello {name}'.format(name = 'John')
Hello John
You can use an event listener to close the clip after it is played
import java.io.File;
import javax.sound.sampled.*;
public void play(File file)
{
try
{
final Clip clip = (Clip)AudioSystem.getLine(new Line.Info(Clip.class));
clip.addLineListener(new LineListener()
{
@Override
public void update(LineEvent event)
{
if (event.getType() == LineEvent.Type.STOP)
clip.close();
}
});
clip.open(AudioSystem.getAudioInputStream(file));
clip.start();
}
catch (Exception exc)
{
exc.printStackTrace(System.out);
}
}
You should probably set all of the cookie properties not just the value of it. setPath()
, setDomain()
... etc
The answer has already been found although I would also like to share my answer:
int main(void)
{
using namespace std;
short tempC;
cout << "Please enter a Celsius value: ";
cin >> tempC;
double tempF = convert(tempC);
cout << tempC << " degrees Celsius is " << tempF << " degrees Fahrenheit." << endl;
cin.get();
cin.get();
return 0;
}
int convert(short nT)
{
return nT * 1.8 + 32;
}
This is a more proper way to do this; however, it is slightly more complex then what you were going for.
sumr
is implemented in terms of foldRight
:
final def sumr(implicit A: Monoid[A]): A = F.foldRight(self, A.zero)(A.append)
foldRight
is not always tail recursive, so you can overflow the stack if the collection is too long. See Why foldRight and reduceRight are NOT tail recursive? for some more discussion of when this is or isn't true.
Sampling randomizes, so just sample the entire data frame.
df.sample(frac=1)
It's a pointer, so instead try:
a->f();
Basically the operator .
(used to access an object's fields and methods) is used on objects and references, so:
A a;
a.f();
A& ref = a;
ref.f();
If you have a pointer type, you have to dereference it first to obtain a reference:
A* ptr = new A();
(*ptr).f();
ptr->f();
The a->b
notation is usually just a shorthand for (*a).b
.
The operator->
can be overloaded, which is notably used by smart pointers. When you're using smart pointers, then you also use ->
to refer to the pointed object:
auto ptr = make_unique<A>();
ptr->f();
It seems the doc evolved.
One should now use :
$("#datetimepicker1").data("DateTimePicker").date()
.
NB : Doing so return a Moment object, not a Date object
If using ActiveAdmin don't forget that there is also a permit_params in the model register block:
ActiveAdmin.register Api::V1::Person do
permit_params :name, :address, :etc
end
These need to be set along with those in the controller:
def api_v1_person_params
params.require(:api_v1_person).permit(:name, :address, :etc)
end
Otherwise you will get the error:
ActiveModel::ForbiddenAttributesError
In my case, just add @ResponseBody
annotation to solve this issue.
In my case I wanted the "null distribution" amongst multiple columns:
SELECT
(CASE WHEN a IS NULL THEN 'NULL' ELSE 'NOT-NULL' END) AS a_null,
(CASE WHEN b IS NULL THEN 'NULL' ELSE 'NOT-NULL' END) AS b_null,
(CASE WHEN c IS NULL THEN 'NULL' ELSE 'NOT-NULL' END) AS c_null,
...
count(*)
FROM us
GROUP BY 1, 2, 3,...
ORDER BY 1, 2, 3,...
As per the '...' it is easily extendable to more columns, as many as needed
I searched for a solution to parse very large files (gbs) line by line using a stream. All the third-party libraries and examples did not suit my needs since they processed the files not line by line (like 1 , 2 , 3 , 4 ..) or read the entire file to memory
The following solution can parse very large files, line by line using stream & pipe. For testing I used a 2.1 gb file with 17.000.000 records. Ram usage did not exceed 60 mb.
First, install the event-stream package:
npm install event-stream
Then:
var fs = require('fs')
, es = require('event-stream');
var lineNr = 0;
var s = fs.createReadStream('very-large-file.csv')
.pipe(es.split())
.pipe(es.mapSync(function(line){
// pause the readstream
s.pause();
lineNr += 1;
// process line here and call s.resume() when rdy
// function below was for logging memory usage
logMemoryUsage(lineNr);
// resume the readstream, possibly from a callback
s.resume();
})
.on('error', function(err){
console.log('Error while reading file.', err);
})
.on('end', function(){
console.log('Read entire file.')
})
);
Please let me know how it goes!
If searching for an element is important, I'd recommend std::set
instead of std::vector
. Using this:
std::find(vec.begin(), vec.end(), x)
runs in O(n) time, but std::set
has its own find()
member (ie. myset.find(x)
) which runs in O(log n) time - that's much more efficient with large numbers of elements
std::set
also guarantees all the added elements are unique, which saves you from having to do anything like if not contained then push_back()...
.
Go to dev.twitter.com and create an application. This will provide you with the credentials you need. Here is an implementation I've recently written with PHP and cURL.
<?php
function buildBaseString($baseURI, $method, $params) {
$r = array();
ksort($params);
foreach($params as $key=>$value){
$r[] = "$key=" . rawurlencode($value);
}
return $method."&" . rawurlencode($baseURI) . '&' . rawurlencode(implode('&', $r));
}
function buildAuthorizationHeader($oauth) {
$r = 'Authorization: OAuth ';
$values = array();
foreach($oauth as $key=>$value)
$values[] = "$key=\"" . rawurlencode($value) . "\"";
$r .= implode(', ', $values);
return $r;
}
$url = "https://api.twitter.com/1.1/statuses/user_timeline.json";
$oauth_access_token = "YOURVALUE";
$oauth_access_token_secret = "YOURVALUE";
$consumer_key = "YOURVALUE";
$consumer_secret = "YOURVALUE";
$oauth = array( 'oauth_consumer_key' => $consumer_key,
'oauth_nonce' => time(),
'oauth_signature_method' => 'HMAC-SHA1',
'oauth_token' => $oauth_access_token,
'oauth_timestamp' => time(),
'oauth_version' => '1.0');
$base_info = buildBaseString($url, 'GET', $oauth);
$composite_key = rawurlencode($consumer_secret) . '&' . rawurlencode($oauth_access_token_secret);
$oauth_signature = base64_encode(hash_hmac('sha1', $base_info, $composite_key, true));
$oauth['oauth_signature'] = $oauth_signature;
// Make requests
$header = array(buildAuthorizationHeader($oauth), 'Expect:');
$options = array( CURLOPT_HTTPHEADER => $header,
//CURLOPT_POSTFIELDS => $postfields,
CURLOPT_HEADER => false,
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_SSL_VERIFYPEER => false);
$feed = curl_init();
curl_setopt_array($feed, $options);
$json = curl_exec($feed);
curl_close($feed);
$twitter_data = json_decode($json);
//print it out
print_r ($twitter_data);
?>
This can be run from the command line:
$ php <name of PHP script>.php
How about this.finishAffinity()
From the docs,
Finish this activity as well as all activities immediately below it in the current task that have the same affinity. This is typically used when an application can be launched on to another task (such as from an ACTION_VIEW of a content type it understands) and the user has used the up navigation to switch out of the current task and in to its own task. In this case, if the user has navigated down into any other activities of the second application, all of those should be removed from the original task as part of the task switch. Note that this finish does not allow you to deliver results to the previous activity, and an exception will be thrown if you are trying to do so.
((ISomeInterface)Activator.CreateInstance(Assembly.LoadFile("somePath").GetTypes()[0])).SomeInterfaceMethod();
If you prefer using column names, you could do something like this as an alternative:
min(data$column_name)
Write your code in window1
.
private void Button_Click(object sender, RoutedEventArgs e)
{
window2 win2 = new window2();
win2.Show();
}
Here's a very simple free open-source CsvExport class for C#. There's an ASP.NET MVC example at the bottom.
https://github.com/jitbit/CsvExport
It takes care about line-breaks, commas, escaping quotes, MS Excel compatibilty... Just add one short .cs
file to your project and you're good to go.
(disclaimer: I'm one of the contributors)
Let me first attempt to justify my reason for adding yet another answer to this question. In an ideal world, rounding is not really a big deal. However, in real systems, you may need to contend with several issues that can result in rounding that may not be what you expect. For example, you may be performing financial calculations where final results are rounded and displayed to users as 2 decimal places; these same values are stored with fixed precision in a database that may include more than 2 decimal places (for various reasons; there is no optimal number of places to keep...depends on specific situations each system must support, e.g. tiny items whose prices are fractions of a penny per unit); and, floating point computations performed on values where the results are plus/minus epsilon. I have been confronting these issues and evolving my own strategy over the years. I won't claim that I have faced every scenario or have the best answer, but below is an example of my approach so far that overcomes these issues:
Suppose 6 decimal places is regarded as sufficient precision for calculations on floats/doubles (an arbitrary decision for the specific application), using the following rounding function/method:
double Round(double x, int p)
{
if (x != 0.0) {
return ((floor((fabs(x)*pow(double(10.0),p))+0.5))/pow(double(10.0),p))*(x/fabs(x));
} else {
return 0.0;
}
}
Rounding to 2 decimal places for presentation of a result can be performed as:
double val;
// ...perform calculations on val
String(Round(Round(Round(val,8),6),2));
For val = 6.825
, result is 6.83
as expected.
For val = 6.824999
, result is 6.82
. Here the assumption is that the calculation resulted in exactly 6.824999
and the 7th decimal place is zero.
For val = 6.8249999
, result is 6.83
. The 7th decimal place being 9
in this case causes the Round(val,6)
function to give the expected result. For this case, there could be any number of trailing 9
s.
For val = 6.824999499999
, result is 6.83
. Rounding to the 8th decimal place as a first step, i.e. Round(val,8)
, takes care of the one nasty case whereby a calculated floating point result calculates to 6.8249995
, but is internally represented as 6.824999499999...
.
Finally, the example from the question...val = 37.777779
results in 37.78
.
This approach could be further generalized as:
double val;
// ...perform calculations on val
String(Round(Round(Round(val,N+2),N),2));
where N is precision to be maintained for all intermediate calculations on floats/doubles. This works on negative values as well. I do not know if this approach is mathematically correct for all possibilities.
I consider delegates to be Anonymous Interfaces. In many cases you can use them whenever you need an interface with a single method, but you don't want the overhead of defining that interface.
You can use BETWEEN
:
DELETE FROM table
where id between 163 and 265
Let's see the working of a lexical analyser ( also called Scanner )
Let's take an example expression :
INPUT : cout << 3+2+3;
FORMATTING PERFORMED BY SCANNER : {cout}|space|{<<}|space|{3}{+}{2}{+}{3}{;}
not the actual output though .
SCANNER SIMPLY LOOKS REPEATEDLY FOR A LEXEME IN SOURCE-PROGRAM TEXT UNTIL INPUT IS EXHAUSTED
Lexeme is a substring of input that forms a valid string-of-terminals present in grammar . Every lexeme follows a pattern which is explained at the end ( the part that reader may skip at last )
( Important rule is to look for the longest possible prefix forming a valid string-of-terminals until next whitespace is encountered ... explained below )
LEXEMES :
( although "<" is also valid terminal-string but above mentioned rule shall select the pattern for lexeme "<<" in order to generate token returned by scanner )
TOKENS : Tokens are returned one at a time ( by Scanner when requested by Parser ) each time Scanner finds a (valid) lexeme. Scanner creates ,if not already present, a symbol-table entry ( having attributes : mainly token-category and few others ) , when it finds a lexeme, in order to generate it's token
'#' denotes a symbol table entry . I have pointed to lexeme number in above list for ease of understanding but it technically should be actual index of record in symbol table.
The following tokens are returned by scanner to parser in specified order for above example.
< identifier , #1 >
< Operator , #2 >
< Literal , #3 >
< Operator , #4 >
< Literal , #5 >
< Operator , #4 >
< Literal , #3 >
< Punctuator , #6 >
As you can see the difference , a token is a pair unlike lexeme which is a substring of input.
And first element of the pair is the token-class/category
Token Classes are listed below:
And one more thing , Scanner detects whitespaces , ignores them and does not form any token for a whitespace at all. Not all delimiters are whitespaces, a whitespace is one form of delimiter used by scanners for it's purpose . Tabs , Newlines , Spaces , Escaped Characters in input all are collectively called Whitespace delimiters. Few other delimiters are ';' ',' ':' etc, which are widely recognised as lexemes that form token.
Total number of tokens returned are 8 here , however only 6 symbol table entries are made for lexemes . Lexemes are also 8 in total ( see definition of lexeme )
--- You can skip this part
A ***pattern*** is a rule ( say, a regular expression ) that is used to check if a string-of-terminals is valid or not
.
If a substring of input composed only of grammar terminals is
following the rule specified by any of the listed patterns , it is
validated as a lexeme and selected pattern will identify the category
of lexeme, else a lexical error is reported due to either (i) not
following any of the rules or (ii) input consists of a bad
terminal-character not present in grammar itself.
for example :
1. No Pattern Exists : In C++ , "99Id_Var" is grammar-supported string-of-terminals but is not recognised by any of patterns hence lexical error is reported .
2. Bad Input Character : $,@,unicode characters may not be supported as a valid character in few programming languages.`
A 2-tuple
is a pair. You can access the first and second elements like this:
x = ('a', 1) # make a pair
x[0] # access 'a'
x[1] # access 1
There are some very good answers here. I'd like to add the following here as well:
some_dict = {
"foo": "bar",
"lorem": "ipsum"
}
for index, (key, value) in enumerate(some_dict.items()):
print(index, key, value)
results in
0 foo bar
1 lorem ipsum
Appears to work with Python 2.7
and 3.5
This is a revised version from @hounded. My code handles both date and time, something like 43705.591795706
import math
import datetime
def xldate_to_datetime(xldatetime): #something like 43705.6158241088
tempDate = datetime.datetime(1899, 12, 31)
(days, portion) = math.modf(xldatetime)
deltaDays = datetime.timedelta(days=days)
#changing the variable name in the edit
secs = int(24 * 60 * 60 * portion)
detlaSeconds = datetime.timedelta(seconds=secs)
TheTime = (tempDate + deltaDays + detlaSeconds )
return TheTime.strftime("%Y-%m-%d %H:%M:%S")
xldate_to_datetime(43705.6158241088)
# 2019-08-29 14:46:47
In angular using material design sidenav I had to use the following:
let ele = document.getElementsByClassName('md-sidenav-content');
let eleArray = <Element[]>Array.prototype.slice.call(ele);
eleArray.map( val => {
val.scrollTop = val.scrollHeight;
});
For Apache Spark 2+, in order to save dataframe into single csv file. Use following command
query.repartition(1).write.csv("cc_out.csv", sep='|')
Here 1
indicate that I need one partition of csv only. you can change it according to your requirements.
I run this snippet of code every time I go to read the properties file, only actually reading the file if it has been modified since the last time I read it. Hope this helps someone.
private long timeStamp;
private File file;
private boolean isFileUpdated( File file ) {
this.file = file;
this.timeStamp = file.lastModified();
if( this.timeStamp != timeStamp ) {
this.timeStamp = timeStamp;
//Yes, file is updated
return true;
}
//No, file is not updated
return false;
}
Similar approach is used in Log4J FileWatchdog
.
The % (modulo) operator yields the remainder from the division of the first argument by the second. The numeric arguments are first converted to a common type.
3 + 2 + 1 - 5 + 4 % 2 - 1 / 4 + 6 = 7
This is based on operator precedence.
You can prefix the argument in orderBy
with a '-' to have descending order instead of ascending. I would write it like this:
<div class="recent"
ng-repeat="reader in book.reader | orderBy: '-created_at' | limitTo: 1">
</div>
This is also stated in the documentation for the filter orderBy.
You can try modifying this technique to suit your needs:
function isFunction() {
var functionName = window.prompt('Function name: ');
var isDefined = eval('(typeof ' + functionName + '==\'function\');');
if (isDefined)
eval(functionName + '();');
else
alert('Function ' + functionName + ' does not exist');
}
function anotherFunction() {
alert('message from another function.');
}
SELECT tab.*,
row_number() OVER () as rnum
FROM tab;
Here's the relevant section in the docs.
P.S. This, in fact, fully matches the answer in the referenced question.
Simply use the following command,
For Export:
mysqldump -u [user] -p [db_name] | gzip > [filename_to_compress.sql.gz]
For Import:
gunzip < [compressed_filename.sql.gz] | mysql -u [user] -p[password] [databasename]
Note: There is no space between the keyword '-p' and your password.
You need to verify that the SQL Server service is running. You can do this by going to Start > Control Panel > Administrative Tools > Services
, and checking that the service SQL Server (SQLEXPRESS
) is running. If not, start it.
While you're in the services applet, also make sure that the service SQL Browser is started. If not, start it.
You need to make sure that SQL Server is allowed to use TCP/IP or named pipes. You can turn these on by opening the SQL Server Configuration Manager in Start > Programs > Microsoft SQL Server 2012 > Configuration Tools
(or SQL Server Configuration Manager
), and make sure that TCP/IP and Named Pipes are enabled. If you don't find the SQL Server Configuration Manager in the Start Menu you can launch the MMC snap-in manually. Check SQL Server Configuration Manager for the path to the snap-in according to your version.
Verify your SQL Server connection authentication mode matches your connection string:
If you're connecting using a username and password, you need to configure SQL Server to accept "SQL Server Authentication Mode":
-- YOU MUST RESTART YOUR SQL SERVER AFTER RUNNING THIS!
USE [master]
GO
DECLARE @SqlServerAndWindowsAuthenticationMode INT = 2;
EXEC xp_instance_regwrite
N'HKEY_LOCAL_MACHINE',
N'Software\Microsoft\MSSQLServer\MSSQLServer',
N'LoginMode',
REG_DWORD,
@SqlServerAndWindowsAuthenticationMode;
GO
otherwise, run Start -> Run -> Services.msc
If so, is it running?
If it's not running then
It sounds like you didn't get everything installed. Launch the install file and chose the option "New installation or add features to an existing installation". From there you should be able to make sure the database engine service gets installed.
I got the error because of a clumsy typo:
This errors:
knitr::opts_chunk$seet(echo = FALSE)
Error: attempt to apply non-function
After correcting the typo, it works:
knitr::opts_chunk$set(echo = FALSE)
You can use vim -b filename
to edit a file in binary mode, which will show ^M characters for carriage return and a new line is indicative of LF being present, indicating Windows CRLF line endings. By LF I mean \n
and by CR I mean \r
. Note that when you use the -b option the file will always be edited in UNIX mode by default as indicated by [unix]
in the status line, meaning that if you add new lines they will end with LF, not CRLF. If you use normal vim without -b on a file with CRLF line endings, you should see [dos]
shown in the status line and inserted lines will have CRLF as end of line. The vim documentation for fileformats
setting explains the complexities.
Also, I don't have enough points to comment on the Notepad++ answer, but if you use Notepad++ on Windows, use the View / Show Symbol / Show End of Line menu to display CR and LF. In this case LF is shown whereas for vim the LF is indicated by a new line.
I tried below code to find duplicate values from list
1) create a set of duplicate list
2) Iterated through set by looking in duplicate list.
glist=[1, 2, 3, "one", 5, 6, 1, "one"]
x=set(glist)
dup=[]
for c in x:
if(glist.count(c)>1):
dup.append(c)
print(dup)
OUTPUT
[1, 'one']
Now get the all index for duplicate element
glist=[1, 2, 3, "one", 5, 6, 1, "one"]
x=set(glist)
dup=[]
for c in x:
if(glist.count(c)>1):
indices = [i for i, x in enumerate(glist) if x == c]
dup.append((c,indices))
print(dup)
OUTPUT
[(1, [0, 6]), ('one', [3, 7])]
Hope this helps someone
SQL Wildcards are enough for this purpose. Follow this link: http://www.w3schools.com/SQL/sql_wildcards.asp
you need to use a query like this:
select * from mytable where msisdn like '%7%'
or
select * from mytable where msisdn like '56655%'
You can use a TableModel
.
Define a class like this:
public class MyModel extends AbstractTableModel{
//not necessary
}
actually isCellEditable()
is false
by default so you may omit it. (see: http://docs.oracle.com/javase/6/docs/api/javax/swing/table/AbstractTableModel.html)
Then use the setModel()
method of your JTable
.
JTable myTable = new JTable();
myTable.setModel(new MyModel());
Thanks for all the helpful suggestions. I finally made sure that there are no warnings in my code, but again was getting this warning from sqlite3:
Assuming signed overflow does not occur when assuming that (X - c) <= X is always true
which I fixed by adding the following CFLAG:
-fno-strict-overflow
You can load both json strings into Python Dictionaries and then combine. This will only work if there are unique keys in each json string.
import json
a = json.loads(jsonStringA)
b = json.loads(jsonStringB)
c = dict(a.items() + b.items())
# or c = dict(a, **b)
This prints in an easy to read format -
import datetime
time_now = datetime.datetime.now().strftime('%m_%d_%Y_%H_%M_%S')
print(time_now)
Output: 02_03_2021_22_44_50
Even if you write a regular expression that matches exactly the subset "valid phone numbers" out of strings, there is no way to guarantee (by way of a regular expression) that they are valid mobile phone numbers. In several countries, mobile phone numbers are indistinguishable from landline phone numbers without at least a number plan lookup, and in some cases, even that won't help. For example, in Sweden, lots of people have "ported" their regular, landline-like phone number to their mobile phone. It's still the same number as they had before, but now it goes to a mobile phone instead of a landline.
Since valid phone numbers consist only of digits, I doubt that rolling your own would risk missing some obscure case of phone number at least. If you want to have better certainty, write a generator that takes a list of all valid country codes, and requires one of them at the beginning of the phone number to be matched by the generated regular expression.
You are dropping it, then creating it, then trying to create it again by using SELECT INTO
. Change to:
DROP TABLE #TMPGUARDIAN
CREATE TABLE #TMPGUARDIAN(
LAST_NAME NVARCHAR(30),
FRST_NAME NVARCHAR(30))
INSERT INTO #TMPGUARDIAN
SELECT LAST_NAME,FRST_NAME
FROM TBL_PEOPLE
In MS SQL Server you can create a table without a CREATE TABLE
statement by using SELECT INTO
You can use the PHP function addslashes() to any string to make it compatible
if you are using Eclipse watch your POM dependencies and your Eclipse buildpath dependency on junit
if you select use Junit4 eclipse create TestCase using org.junit package but your POM use by default Junit3 (junit.framework package) that is the cause, like this picture:
Just update your Junit dependency in your POM file to Junit4 or your Eclipse BuildPath to Junit3
e.which doesn't work in IE try e.keyCode, also you probably want to use keydown() instead of keypress() if you are targeting IE.
See http://unixpapa.com/js/key.html for more information.
As @alucic mentioned, use:
composer require vendor/package:version
or you can use:
composer update vendor/package:version
You should probably review this StackOverflow post about differences between composer install and composer update.
Related to question about version numbers, you can review Composer documentation on versions, but here in short:
So, with Tilde you will get automatic updates of patches but minor and major versions will not be updated. However, if you use Caret you will get patches and minor versions, but you will not get major (breaking changes) versions.
Tilde Version is considered a "safer" approach, but if you are using reliable dependencies (well-maintained libraries) you should not have any problems with Caret Version (because minor changes should not be breaking changes.
Arrays in Java aren't dynamic, like collection classes. If you want a true collection that supports dynamic addition and deletion, use ArrayList<>. If you still want to live with vanilla arrays, find the index of string, construct a new array with size one less than the original, and use System.arraycopy()
to copy the elements before and after. Or write a copy loop with skip by hand, on small arrays the difference will be negligible.
Try not to do DOM manipulation by referring the DOM directly, it will have lot of performance issue, also event handling becomes more tricky when we try to access DOM directly, instead use data and directives to manipulate the DOM.
This will give you more control over the manipulation, also you will be able to manage functionalities in the modular format.
One possible reason is to check Android SDK Manager and install Google USB Driver in Extras folder if you have not installed it.
Following the steps here: http://developer.android.com/sdk/oem-usb.html#InstallingDriver allowed Eclipse to display the device.
Why fight it? Why not simply control your table width using the bootstrap grid?
<div class="row">
<div class="col-sm-6">
<table></table>
</div>
</div>
This will create a table that is half (6 out of 12) of the width of the containing element.
I sometimes use inline styles as per the other answers, but it is discouraged.
Bootstrap 4 has some nice helper classes for width like w-25
, w-50
, w-75
, w-100
, and w-auto
. This will make the table 50% width:
<table class="w-50"></table>
Here's the doc: https://getbootstrap.com/docs/4.0/utilities/sizing/
You could do it like this:
.switch {
position: relative;
display: inline-block;
width: 90px;
height: 34px;
}
.switch input {display:none;}
.slider {
position: absolute;
cursor: pointer;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: #ca2222;
-webkit-transition: .4s;
transition: .4s;
}
.slider:before {
position: absolute;
content: "";
height: 26px;
width: 26px;
left: 4px;
bottom: 4px;
background-color: white;
-webkit-transition: .4s;
transition: .4s;
}
input:checked + .slider {
background-color: #2ab934;
}
input:focus + .slider {
box-shadow: 0 0 1px #2196F3;
}
input:checked + .slider:before {
-webkit-transform: translateX(55px);
-ms-transform: translateX(55px);
transform: translateX(55px);
}
/*------ ADDED CSS ---------*/
.on
{
display: none;
}
.on, .off
{
color: white;
position: absolute;
transform: translate(-50%,-50%);
top: 50%;
left: 50%;
font-size: 10px;
font-family: Verdana, sans-serif;
}
input:checked+ .slider .on
{display: block;}
input:checked + .slider .off
{display: none;}
/*--------- END --------*/
/* Rounded sliders */
.slider.round {
border-radius: 34px;
}
.slider.round:before {
border-radius: 50%;}
_x000D_
<label class="switch">
<input type="checkbox" id="togBtn">
<div class="slider round">
<!--ADDED HTML -->
<span class="on">ON</span>
<span class="off">OFF</span>
<!--END-->
</div>
</label>
_x000D_
Or pure CSS:
.switch {
position: relative;
display: inline-block;
width: 90px;
height: 34px;
}
.switch input {display:none;}
.slider {
position: absolute;
cursor: pointer;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: #ca2222;
-webkit-transition: .4s;
transition: .4s;
border-radius: 34px;
}
.slider:before {
position: absolute;
content: "";
height: 26px;
width: 26px;
left: 4px;
bottom: 4px;
background-color: white;
-webkit-transition: .4s;
transition: .4s;
border-radius: 50%;
}
input:checked + .slider {
background-color: #2ab934;
}
input:focus + .slider {
box-shadow: 0 0 1px #2196F3;
}
input:checked + .slider:before {
-webkit-transform: translateX(26px);
-ms-transform: translateX(26px);
transform: translateX(55px);
}
/*------ ADDED CSS ---------*/
.slider:after
{
content:'OFF';
color: white;
display: block;
position: absolute;
transform: translate(-50%,-50%);
top: 50%;
left: 50%;
font-size: 10px;
font-family: Verdana, sans-serif;
}
input:checked + .slider:after
{
content:'ON';
}
/*--------- END --------*/
_x000D_
<label class="switch">
<input type="checkbox" id="togBtn">
<div class="slider round"></div>
</label>
_x000D_
public static void main (String[] args) {
System.out.println("Simple Java Word Count Program");
String str1 = "Today is Holdiay Day";
String[] wordArray = str1.trim().split("\\s+");
int wordCount = wordArray.length;
System.out.println("Word count is = " + wordCount);
}
The ideas is to split the string into words on any whitespace character occurring any number of times. The split function of the String class returns an array containing the words as its elements. Printing the length of the array would yield the number of words in the string.
I couldn't get the compiler (x64
version) to use the sysroot
until I added SET(CMAKE_SYSROOT $ENV{HOME}/raspberrypi/rootfs)
to pi.cmake
.
Update for Rails4
requires no 3rd party gems
a = Person.where(name: "John") # or any scope
b = Person.where(lastname: "Smith") # or any scope
Person.where([a, b].map{|s| s.arel.constraints.reduce(:and) }.reduce(:or))\
.tap {|sc| sc.bind_values = [a, b].map(&:bind_values) }
Old answer
requires no 3rd party gems
Person.where(
Person.where(:name => "John").where(:lastname => "Smith")
.where_values.reduce(:or)
)
The method is implemented in "native" code. That is, code that does not run in the JVM. It's typically written in C or C++.
Native methods are usually used to interface with system calls or libraries written in other programming languages.
commons-lang SerializationUtils - using serialization - if all classes are in your control and you can force implementing Serializable
.
Java Deep Cloning Library - using reflection - in cases when the classes or the objects you want to clone are out of your control (a 3rd party library) and you can't make them implement Serializable
, or in cases you don't want to implement Serializable
.
commons-beanutils BeanUtils - in most cases.
Spring BeanUtils - if you are already using spring and hence have this utility on the classpath.
I deliberately omitted the "do-it-yourself" option - the API's above provide a good control over what to and what not to clone (for example using transient
, or String[] ignoreProperties
), so reinventing the wheel isn't preferred.
I use Eclipse (without Maven) so I place the .properties
file in src
folder that also contains the java source code, in order to have the .properties
file in the classes
folder after building the project. It works fine.
Take a look at this post: https://www.mkyong.com/jsf2/cant-find-bundle-for-base-name-xxx-locale-en_us/
Hope this help you.
Microsoft has a tool just for this purpose: Microsoft Expression Web. There's a free version with a bunch of FrontPage/Dreamweaver-like garbage that nobody wants. What's important is that it has a great browser testing feature. I'm running Windows 8.1 Pro (final release, not preview) with Internet Explorer 11. I get these local browsers:
Then I get a Remote Browsers (Beta) option. I'm supposed to sign up with a valid e-mail, but there's an error communicating with the server. Oh well.
Firefox used to be supported, but I don't see it now. Might be hiding.
I can compare side-by-side between browser versions. I can also compare with an image, or apparently, a PSD file (no idea how well that works). InDesign would be nice, but that's probably asking for too much.
I have the full version of Expression partially installed as well due to Visual Studio Ultimate being on the same computer, so I'd appreciate someone confirming in a comment that my free installation isn't automatically upgrading.
Update: Looks like the online service was discontinued, but local browsers are still supported. You can also download just SuperPreview, without the editor garbage. If you want the full IDE, the latest version is Microsoft Expression Web 4 (Free Version). Here's the official list of supported browsers. IE6 seems to give an error on Windows 8.1, but IE7 works.
Update 2014-12-09: Microsoft has pretty much given up on this. Don't expect it to work well.
If you're trying to insert in to last_accessed_on
, which is a DateTime2
, then your issue is with the fact that you are converting it to a varchar
in a format that SQL doesn't understand.
If you modify your code to this, it should work, note the format of your date has been changed to: YYYY-MM-DD hh:mm:ss:
UPDATE student_queues
SET Deleted=0,
last_accessed_by='raja',
last_accessed_on=CONVERT(datetime2,'2014-07-23 09:37:00')
WHERE std_id IN ('2144-384-11564') AND reject_details='REJECT'
Or if you want to use CAST
, replace with:
CAST('2014-07-23 09:37:00.000' AS datetime2)
This is using the SQL ISO Date Format.
You can use float on that particular div, e.g.
<div style="float:right;">
Float the div you want more space to have to the left as well:
<div style="float:left;">
If all else fails give the div on the right position:absolute and then move it as right as you want it to be.
<div style="position:absolute; left:-500px; top:30px;">
etc. Obviously put the style in a seperate stylesheet but this is just a quicker example.
Steps to find the UDID from IPhone and IPad Without Using itunes
Open below link in your iPhone or iPad : - http://get.udid.io/
Click on the Button Green color - Tap to find UDID
Get your UDID will Appear, Click on the right side top INSTALL button
4 . UDID will appear Copy the UDID.
If you had python 2.x and then installed python3, your pip will be pointing to pip3.
you can verify that by typing pip --version
which would be the same as pip3 --version
.
On your system you have now pip, pip2 and pip3.
If you want you can change pip to point to pip2 instead of pip3.
Here's another solution that uses some of VBA's built in date functions and stores all the date data in an array for comparison, which may give better performance if you get a lot of data:
Public Sub MoveData(MonthNum As Integer, FromSheet As Worksheet, ToSheet As Worksheet)
Const DateCol = "A" 'column where dates are store
Const DestCol = "A" 'destination column where dates are stored. We use this column to find the last populated row in ToSheet
Const FirstRow = 2 'first row where date data is stored
'Copy range of values to Dates array
Dates = FromSheet.Range(DateCol & CStr(FirstRow) & ":" & DateCol & CStr(FromSheet.Range(DateCol & CStr(FromSheet.Rows.Count)).End(xlUp).Row)).Value
Dim i As Integer
For i = LBound(Dates) To UBound(Dates)
If IsDate(Dates(i, 1)) Then
If Month(CDate(Dates(i, 1))) = MonthNum Then
Dim CurrRow As Long
'get the current row number in the worksheet
CurrRow = FirstRow + i - 1
Dim DestRow As Long
'get the destination row
DestRow = ToSheet.Range(DestCol & CStr(ToSheet.Rows.Count)).End(xlUp).Row + 1
'copy row CurrRow in FromSheet to row DestRow in ToSheet
FromSheet.Range(CStr(CurrRow) & ":" & CStr(CurrRow)).Copy ToSheet.Range(DestCol & CStr(DestRow))
End If
End If
Next i
End Sub
ToolBar's name can easily be changed using
android:label="My Activity"
in your Manifest File. I just going through Manifest & found
android:label
Helps to change according to the specific activity, Hope you'll give it a try
this is probably about you don't entered correct dependency version. you can select correct dependency from this:
file>menu>project structure>app>dependencies>+>Library Dependency>select any thing you need > OK
if cannot find your needs you should update your sdk from below way:
tools>android>sdk manager>sdk update>select any thing you need>ok
Best method I found:
source activate old_env
conda env export > old_env.yml
Then process it with something like this:
with open('old_env.yml', 'r') as fin, open('new_env.yml', 'w') as fout:
for line in fin:
if 'py35' in line: # replace by the version you want to supersede
line = line[:line.rfind('=')] + '\n'
fout.write(line)
then edit manually the first (name: ...
) and last line (prefix: ...
) to reflect your new environment name and run:
conda env create -f new_env.yml
you might need to remove or change manually the version pin of a few packages for which which the pinned version from old_env
is found incompatible or missing for the new python version.
I wish there was a built-in, easier way...
I know this is old but I was struggling with the same. I haven't found a way to change directories, but if you just want to work with the C drive, scp defaults to C. To scp from Ubuntu to Windows, I ended up having to use (notice the double back-slashes):
scp /local/file/path [email protected]:Users\\Anshul\\Desktop
Hope this helps someone.
You can use the min and max attributes.
The following code do the same:
<input type="number" min="-999" max="9999"/>
Good news in Java 8 we can do it in one line:
List<Integer> ints = Files.lines(Paths.get(fileName))
.map(Integer::parseInt)
.collect(Collectors.toList());
I think your particular problem isn't how to use Glyphicons but understanding how Bootstrap files work together.
Bootstrap requires a specific file structure to work. I see from your code you have this:
<link href="bootstrap.css" rel="stylesheet" media="screen">
Your Bootstrap.css is being loaded from the same location as your page, this would create a problem if you didn't adjust your file structure.
But first, let me recommend you setup your folder structure like so:
/css <-- Bootstrap.css here
/fonts <-- Bootstrap fonts here
/img
/js <-- Bootstrap JavaScript here
index.html
If you notice, this is also how Bootstrap structures its files in its download ZIP.
You then include your Bootstrap file like so:
<link href="css/bootstrap.css" rel="stylesheet" media="screen">
or
<link href="./css/bootstrap.css" rel="stylesheet" media="screen">
or
<link href="/css/bootstrap.css" rel="stylesheet" media="screen">
Depending on your server structure or what you're going for.
The first and second are relative to your file's current directory. The second one is just more explicit by saying "here" (./) first then css folder (/css).
The third is good if you're running a web server, and you can just use relative to root notation as the leading "/" will be always start at the root folder.
So, why do this?
Bootstrap.css has this specific line for Glyphfonts:
@font-face {
font-family: 'Glyphicons Halflings';
src: url('../fonts/glyphicons-halflings-regular.eot');
src: url('../fonts/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'), url('../fonts/glyphicons-halflings-regular.woff') format('woff'), url('../fonts/glyphicons-halflings-regular.ttf') format('truetype'), url('../fonts/glyphicons-halflings-regular.svg#glyphicons-halflingsregular') format('svg');
}
What you can see is that that Glyphfonts are loaded by going up one directory ../
and then looking for a folder called /fonts
and THEN loading the font file.
The URL address is relative to the location of the CSS file. So, if your CSS file is at the same location like this:
/fonts
Bootstrap.css
index.html
The CSS file is going one level deeper than looking for a /fonts
folder.
So, let's say the actual location of these files are:
C:\www\fonts
C:\www\Boostrap.css
C:\www\index.html
The CSS file would technically be looking for a folder at:
C:\fonts
but your folder is actually in:
C:\www\fonts
So see if that helps. You don't have to do anything 'special' to load Bootstrap Glyphicons, except make sure your folder structure is set up appropriately.
When you get that fixed, your HTML should simply be:
<span class="glyphicon glyphicon-comment"></span>
Note, you need both classes. The first class glyphicon
sets up the basic styles while glyphicon-comment
sets the specific image.
This might be useful. http://nanodeath.github.com/HydrateJS/ https://github.com/nanodeath/HydrateJS
Use hydrate.stringify
to serialize the object and hydrate.parse
to deserialize.
Assuming you're not writing a rubygem, Gemfile.lock should be in your repository. It's used as a snapshot of all your required gems and their dependencies. This way bundler doesn't have to recalculate all the gem dependencies each time you deploy, etc.
From cowboycoded's comment below:
If you are working on a gem, then DO NOT check in your Gemfile.lock. If you are working on a Rails app, then DO check in your Gemfile.lock.
Here's a nice article explaining what the lock file is.
String[] string=new String[60];
System.out.println(string.length);
it is initialization and getting the STRING LENGTH code in very simple way for beginners
When an array is passed to a method or function in PHP, it is passed by value unless you explicitly pass it by reference, like so:
function test(&$array) {
$array['new'] = 'hey';
}
$a = $array(1,2,3);
// prints [0=>1,1=>2,2=>3]
var_dump($a);
test($a);
// prints [0=>1,1=>2,2=>3,'new'=>'hey']
var_dump($a);
In your second question, $b
is not a reference to $a
, but a copy of $a
.
Much like the first example, you can reference $a
by doing the following:
$a = array(1,2,3);
$b = &$a;
// prints [0=>1,1=>2,2=>3]
var_dump($b);
$b['new'] = 'hey';
// prints [0=>1,1=>2,2=>3,'new'=>'hey']
var_dump($a);
there are 2 solutions:
visit this jsfiddle
in your css you can add this:
.input-disabled{background-color:#EBEBE4;border:1px solid #ABADB3;padding:2px 1px;}
in your js do something like this:
$('#test').attr('readonly', true);
$('#test').addClass('input-disabled');
Hope this help.
Another way is using hidden input field as mentioned by some of the comments. However bear in mind that, in the backend code, you need to make sure you validate this newly hidden input at correct scenario. Hence I'm not recommend this way as it will create more bugs if its not handle properly.
string s = "hello";
char c = s[1];
// now c == 'e'
See also Substring
, to return more than one character.
There are also the %<% and %<=% comparison operators in the TeachingDemos package which allow you to do this like:
sum( 2 %<% x %<% 5 )
sum( 2 %<=% x %<=% 5 )
which gives the same results as:
sum( 2 < x & x < 5 )
sum( 2 <= x & x <= 5 )
Which is better is probably more a matter of personal preference.
In the default Java API you have:
String.CASE_INSENSITIVE_ORDER
So you do not need to rewrite a comparator if you were to use strings with Sorted data structures.
String s = "some text here";
s.equalsIgnoreCase("Some text here");
Is what you want for pure equality checks in your own code.
Just to further informations about anything pertaining to equality of Strings in Java. The hashCode() function of the java.lang.String class "is case sensitive":
public int hashCode() {
int h = hash;
if (h == 0 && value.length > 0) {
char val[] = value;
for (int i = 0; i < value.length; i++) {
h = 31 * h + val[i];
}
hash = h;
}
return h;
}
So if you want to use an Hashtable/HashMap with Strings as keys, and have keys like "SomeKey", "SOMEKEY" and "somekey" be seen as equal, then you will have to wrap your string in another class (you cannot extend String since it is a final class). For example :
private static class HashWrap {
private final String value;
private final int hash;
public String get() {
return value;
}
private HashWrap(String value) {
this.value = value;
String lc = value.toLowerCase();
this.hash = lc.hashCode();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o instanceof HashWrap) {
HashWrap that = (HashWrap) o;
return value.equalsIgnoreCase(that.value);
} else {
return false;
}
}
@Override
public int hashCode() {
return this.hash;
}
}
and then use it as such:
HashMap<HashWrap, Object> map = new HashMap<HashWrap, Object>();
Look into twitter cards.
The trick is not in the button but rather the page you are sharing. Twitter Cards pull the image from the meta tags similar to facebook
sharing.
Example:
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="@site_username">
<meta name="twitter:title" content="Top 10 Things Ever">
<meta name="twitter:description" content="Up than 200 characters.">
<meta name="twitter:creator" content="@creator_username">
<meta name="twitter:image" content="http://placekitten.com/250/250">
<meta name="twitter:domain" content="YourDomain.com">
I had the same issue trying to find text in files with powershell. I used the following - to stay as close to the Linux environment as possible.
Hopefully this helps somebody:
PowerShell:
PS) new-alias grep findstr
PS) ls -r *.txt | cat | grep "some random string"
Explanation:
ls - lists all files
-r - recursively (in all files and folders and subfolders)
*.txt - only .txt files
| - pipe the (ls) results to next command (cat)
cat - show contents of files comming from (ls)
| - pipe the (cat) results to next command (grep)
grep - search contents from (cat) for "some random string" (alias to findstr)
Yes, this works as well:
PS) ls -r *.txt | cat | findstr "some random string"
Here's another way to do this:
- name: my command
command: echo stuff
when: "'groupname' not in group_names"
group_names
is a magic variable as documented here: https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#accessing-information-about-other-hosts-with-magic-variables :
group_names is a list (array) of all the groups the current host is in.
.parent:hover > .child {
/*do anything with this child*/
}
"resizeMode"
isn't style property. Should move to Image component's Props
like below code.
const win = Dimensions.get('window');
const styles = StyleSheet.create({
image: {
flex: 1,
alignSelf: 'stretch',
width: win.width,
height: win.height,
}
});
...
<Image
style={styles.image}
resizeMode={'contain'} /* <= changed */
source={require('../../../images/collection-imag2.png')} />
...
Image's height won't become automatically because Image component is required both width and height in style props
. So you can calculate by using getSize() method for remote images like this answer and you can also calculate image ratio for static images like this answer.
There are a lot of useful open source libraries -
assets/images
folderpubspec.yaml
file.assets
or images
. You don't even need to make images
a subfolder. Whatever name you use, though, is what you will regester in the pubspec.yaml
file.assets/images
. The relative path of lake.jpg
, for example, would be assets/images/lake.jpg
.pubspec.yaml
Open the pubspec.yaml
file that is in the root of your project.
Add an assets
subsection to the flutter
section like this:
flutter:
assets:
- assets/images/lake.jpg
If you have multiple images that you want to include then you can leave off the file name and just use the directory name (include the final /
):
flutter:
assets:
- assets/images/
Get the asset in an Image widget with Image.asset('assets/images/lake.jpg')
.
The entire main.dart
file is here:
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: Text("Image from assets"),
),
body: Image.asset('assets/images/lake.jpg'), // <--- image
),
);
}
}
When making changes to pubspec.yaml I find that I often need to completely stop my app and restart it again, especially when adding assets. Otherwise I get a crash.
Running the app now you should have something like this:
The first video here goes into a lot of detail about how to include images in your app. The second video covers more about how to adjust how they look.
You missed the second statement: 1) NOT LIKE A, AND 2) NOT LIKE B
SELECT word FROM table WHERE word NOT LIKE '%a%' AND word NOT LIKE '%b%'
Warning: Don't do this if you've already pushed
You want to do:
git reset HEAD~
If you don't want the changes and blow everything away:
git reset --hard HEAD~
This can be done with numpy.arange(start, stop, stepsize)
import numpy as np
np.arange(0.5,5,1.5)
>> [0.5, 2.0, 3.5, 5.0]
# OBS you will sometimes see stuff like this happening,
# so you need to decide whether that's not an issue for you, or how you are going to catch it.
>> [0.50000001, 2.0, 3.5, 5.0]
Note 1:
From the discussion in the comment section here, "never use numpy.arange()
(the numpy documentation itself recommends against it). Use numpy.linspace as recommended by wim, or one of the other suggestions in this answer"
Note 2: I have read the discussion in a few comments here, but after coming back to this question for the third time now, I feel this information should be placed in a more readable position.
This may be an old thread but I came across it and figured that I would give a final answer.
The twitch api is json based and to recieve your stream key you need to authorize your app for use with the api. You do so under the connections tab within your profile on twitch.tv itself.. Down the bottom of said tab there is "register your app" or something similar. Register it and you'll get a client-id header for your get requests.
Now you need to attach your Oauthv2 key to your headers or as a param during the query to the following get request.
curl -H 'Accept: application/vnd.twitchtv.v3+json' -H 'Authorization: OAuth ' \ -X GET https://api.twitch.tv/kraken/channel
As you can see in the documentation above, if you've done these two things, your stream key will be made available to you.
As I said - Sorry for the bump but some people do find it hard to read the twitch* api.
Hope that helps somebody in the future.
Actually you are right: it runs another instance of make. A possible solution would be:
.PHONY : clearscr fresh clean all
all :
compile executable
clean :
rm -f *.o $(EXEC)
fresh : clean clearscr all
clearscr:
clear
By calling make fresh
you get first the clean
target, then the clearscreen
which runs clear
and finally all
which does the job.
EDIT Aug 4
What happens in the case of parallel builds with make’s -j
option?
There's a way of fixing the order. From the make manual, section 4.2:
Occasionally, however, you have a situation where you want to impose a specific ordering on the rules to be invoked without forcing the target to be updated if one of those rules is executed. In that case, you want to define order-only prerequisites. Order-only prerequisites can be specified by placing a pipe symbol (|) in the prerequisites list: any prerequisites to the left of the pipe symbol are normal; any prerequisites to the right are order-only: targets : normal-prerequisites | order-only-prerequisites
The normal prerequisites section may of course be empty. Also, you may still declare multiple lines of prerequisites for the same target: they are appended appropriately. Note that if you declare the same file to be both a normal and an order-only prerequisite, the normal prerequisite takes precedence (since they are a strict superset of the behavior of an order-only prerequisite).
Hence the makefile becomes
.PHONY : clearscr fresh clean all
all :
compile executable
clean :
rm -f *.o $(EXEC)
fresh : | clean clearscr all
clearscr:
clear
EDIT Dec 5
It is not a big deal to run more than one makefile instance since each command inside the task will be a sub-shell anyways. But you can have reusable methods using the call function.
log_success = (echo "\x1B[32m>> $1\x1B[39m")
log_error = (>&2 echo "\x1B[31m>> $1\x1B[39m" && exit 1)
install:
@[ "$(AWS_PROFILE)" ] || $(call log_error, "AWS_PROFILE not set!")
command1 # this line will be a subshell
command2 # this line will be another subshell
@command3 # Use `@` to hide the command line
$(call log_error, "It works, yey!")
uninstall:
@[ "$(AWS_PROFILE)" ] || $(call log_error, "AWS_PROFILE not set!")
....
$(call log_error, "Nuked!")
you can do this,
nav_view.getMenu().findItem(R.id.menutem).setChecked(true)