Cocos2d-x within your classic Android (Java) app tuto http://jpsarda.tumblr.com/post/26000816688/integrate-cocos2d-x-c-into-an-android-application
Works perfectly with python 3.5+
client:
import requests
data = {'sender': 'Alice',
'receiver': 'Bob',
'message': 'We did it!'}
r = requests.post("http://localhost:8080", json={'json_payload': data})
server:
class Root(object):
def __init__(self, content):
self.content = content
print self.content # this works
exposed = True
def GET(self):
cherrypy.response.headers['Content-Type'] = 'application/json'
return simplejson.dumps(self.content)
@cherrypy.tools.json_in()
@cherrypy.tools.json_out()
def POST(self):
self.content = cherrypy.request.json
return {'status': 'success', 'message': 'updated'}
Send a POST request from A. Post requests are on the serverside only and can't be accessed by the client.
You can send a POST request from a.com
to b.com
using CURL (recommended, serverside) or a hidden method="POST"
form (clientside). If you go for the latter, you might want to obfuscate your JavaScript so that the user won't be able to understand the algorithm and interfere with it.
Make a gateway on b.com
to set cookies:
<?php
if (isset($_POST['data']) {
setcookie('a', $_POST['data']);
header("Location: b.com/landingpage");
}
?>
If you want to bring security a step further, implement a function on both sides (a.com
and b.com
) to encrypt (on a.com
) and decrypt (on b.com
) data using a cryptographic cypher.
If you're trying to do something that must be absolutely secure (e.g. transfer a login session) try oAuth or take some inspiration from https://api.cloudianos.com/docs#v2/auth
Start with a basic square and borders. Each border will be given a different color so we can tell them apart:
.triangle {
border-color: yellow blue red green;
border-style: solid;
border-width: 200px 200px 200px 200px;
height: 0px;
width: 0px;
}
_x000D_
<div class="triangle"></div>
_x000D_
which gives you this:
But there's no need for the top border, so set its width to 0px
. Now our border-bottom of 200px
will make our triangle 200px tall.
.triangle {
border-color: yellow blue red green;
border-style: solid;
border-width: 0px 200px 200px 200px;
height: 0px;
width: 0px;
}
_x000D_
<div class="triangle"></div>
_x000D_
and we will get this:
Then to hide the two side triangles, set the border-color to transparent. Since the top-border has been effectively deleted, we can set the border-top-color to transparent as well.
.triangle {
border-color: transparent transparent red transparent;
border-style: solid;
border-width: 0px 200px 200px 200px;
height: 0px;
width: 0px;
}
_x000D_
<div class="triangle"></div>
_x000D_
finally we get this:
The PHP function array_key_exists()
determines if a particular key, or numerical index, exists for an element of an array. However, if you want to determine if a key exists and is associated with a value, the PHP language construct isset()
can tell you that (and that the value is not null
). array_key_exists()
cannot return information about the value of a key/index.
To change the background color of all dialogs and pop-ups in your app, use colorBackgroundFloating
attribute.
<style name="MyApplicationTheme" parent="@style/Theme.AppCompat.NoActionBar">
...
<item name="colorBackgroundFloating">
@color/background</item>
<item name="android:colorBackgroundFloating" tools:targetApi="23">
@color/background</item>
...
</style>
Documentation:
If you have callbacks with different parameters you can use templates as follows:
// compile with: g++ -std=c++11 myTemplatedCPPcallbacks.cpp -o myTemplatedCPPcallbacksApp
#include <functional> // c++11
#include <iostream> // due to: cout
using std::cout;
using std::endl;
class MyClass
{
public:
MyClass();
static void Callback(MyClass* instance, int x);
private:
int private_x;
};
class OtherClass
{
public:
OtherClass();
static void Callback(OtherClass* instance, std::string str);
private:
std::string private_str;
};
class EventHandler
{
public:
template<typename T, class T2>
void addHandler(T* owner, T2 arg2)
{
cout << "\nHandler added..." << endl;
//Let's pretend an event just occured
owner->Callback(owner, arg2);
}
};
MyClass::MyClass()
{
EventHandler* handler;
private_x = 4;
handler->addHandler(this, private_x);
}
OtherClass::OtherClass()
{
EventHandler* handler;
private_str = "moh ";
handler->addHandler(this, private_str );
}
void MyClass::Callback(MyClass* instance, int x)
{
cout << " MyClass::Callback(MyClass* instance, int x) ==> "
<< 6 + x + instance->private_x << endl;
}
void OtherClass::Callback(OtherClass* instance, std::string private_str)
{
cout << " OtherClass::Callback(OtherClass* instance, std::string private_str) ==> "
<< " Hello " << instance->private_str << endl;
}
int main(int argc, char** argv)
{
EventHandler* handler;
handler = new EventHandler();
MyClass* myClass = new MyClass();
OtherClass* myOtherClass = new OtherClass();
}
<sup>
and <sub>
tags work and are your only good solution for arbitrary text. Other solutions include:
Unicode
If the superscript (or subscript) you need is of a mathematical nature, Unicode may well have you covered.
I've compiled a list of all the Unicode super and subscript characters I could identify in this gist. Some of the more common/useful ones are:
°
SUPERSCRIPT ZERO (U+2070)¹
SUPERSCRIPT ONE (U+00B9)²
SUPERSCRIPT TWO (U+00B2)³
SUPERSCRIPT THREE (U+00B3)n
SUPERSCRIPT LATIN SMALL LETTER N (U+207F)People also often reach for <sup>
and <sub>
tags in an attempt to render specific symbols like these:
™
TRADE MARK SIGN (U+2122)®
REGISTERED SIGN (U+00AE)?
SERVICE MARK (U+2120)Assuming your editor supports Unicode, you can copy and paste the characters above directly into your document.
Alternatively, you could use the hex values above in an HTML character escape. Eg, ²
instead of ²
. This works with GitHub (and should work anywhere else your Markdown is rendered to HTML) but is less readable when presented as raw text/Markdown.
Images
If your requirements are especially unusual, you can always just inline an image. The GitHub supported syntax is:
![Alt text goes here, if you'd like](path/to/image.png)
You can use a full path (eg. starting with https://
or http://
) but it's often easier to use a relative path, which will load the image from the repo, relative to the Markdown document.
If you happen to know LaTeX (or want to learn it) you could do just about any text manipulation imaginable and render it to an image. Sites like Quicklatex make this quite easy.
Basically http.antMatcher()
tells Spring to only configure HttpSecurity
if the path matches this pattern.
Like everyone else:
for i, val in enumerate(data):
print i, val
but also
for i, val in enumerate(data, 1):
print i, val
In other words, you can specify as starting value for the index/count generated by enumerate() which comes in handy if you don't want your index to start with the default value of zero.
I was printing out lines in a file the other day and specified the starting value as 1 for enumerate()
, which made more sense than 0 when displaying information about a specific line to the user.
This is called context manager and I just want to add that similar approaches exist for other programming languages. Comparing them could be helpful in understanding the context manager in python. Basically, a context manager is used when we are dealing with some resources (file, network, database) that need to be initialized and at some point, tear downed (disposed). In Java 7 and above we have automatic resource management that takes the form of:
//Java code
try (Session session = new Session())
{
// do stuff
}
Note that Session needs to implement AutoClosable
or one of its (many) sub-interfaces.
In C#, we have using statements for managing resources that takes the form of:
//C# code
using(Session session = new Session())
{
... do stuff.
}
In which Session
should implement IDisposable
.
In python, the class that we use should implement __enter__
and __exit__
. So it takes the form of:
#Python code
with Session() as session:
#do stuff
And as others pointed out, you can always use try/finally statement in all the languages to implement the same mechanism. This is just syntactic sugar.
You can do this using jQuery:
This method gets a list of its children then counts the length of that list, as simple as that.
$("ul").find("*").length;
The find() method traverses DOM downwards along descendants, all the way down to the last descendant.
Note: children() method traverses a single level down the DOM tree.
$sqlquery = "SELECT field1, field2 FROM table WHERE columnA <> 'x' AND columbB <> 'y'";
I'd suggest using the diamond operator (<>) in favor of != as the first one is valid SQL and the second one is a MySQL addition.
Think of it as the difference between a requirement and a suggestion. For the select
element, the user is required to select one of the options you've given. For the datalist
element, it is suggested that the user select one of the options you've given, but he can actually enter anything he wants in the input.
Edit 1: So which one you use depends upon your requirements. If the user must enter one of your choices, use the select
element. If the use can enter whatever, use the datalist
element.
Edit 2: Found this tidbit in the HTML Living Standard: "Each option element that is a descendant of the datalist element...represents a suggestion."
Use jQuery:
$.ajax({ url: 'your-url', success: function(data) { alert(data); } });
This data is your HTML.
Without jQuery (just JavaScript):
function makeHttpObject() {
try {return new XMLHttpRequest();}
catch (error) {}
try {return new ActiveXObject("Msxml2.XMLHTTP");}
catch (error) {}
try {return new ActiveXObject("Microsoft.XMLHTTP");}
catch (error) {}
throw new Error("Could not create HTTP request object.");
}
var request = makeHttpObject();
request.open("GET", "your_url", true);
request.send(null);
request.onreadystatechange = function() {
if (request.readyState == 4)
alert(request.responseText);
};
The text before each parameter is part of the method name. From your example, the name of the method is actually
-getBusStops:forTime:
Each : represents an argument. In a method call, the method name is split at the :s and arguments appear after the :s. e.g.
[getBusStops: arg1 forTime: arg2]
Use break
:
while (true) {
....
if (obj == null) {
break;
}
....
}
However, if your code looks exactly like you have specified you can use a normal while
loop and change the condition to obj != null
:
while (obj != null) {
....
}
@Amber gave correct answer! Just one more addition, if you do not know the exact path of the file you can use wildcards! This worked for me.
git log --all -- **/thefile.*
I'm a little bit new with the concept of application schedulers, but what I found here for APScheduler v3.3.1 , it's something a little bit different. I believe that for the newest versions, the package structure, class names, etc., have changed, so I'm putting here a fresh solution which I made recently, integrated with a basic Flask application:
#!/usr/bin/python3
""" Demonstrating Flask, using APScheduler. """
from apscheduler.schedulers.background import BackgroundScheduler
from flask import Flask
def sensor():
""" Function for test purposes. """
print("Scheduler is alive!")
sched = BackgroundScheduler(daemon=True)
sched.add_job(sensor,'interval',minutes=60)
sched.start()
app = Flask(__name__)
@app.route("/home")
def home():
""" Function for test purposes. """
return "Welcome Home :) !"
if __name__ == "__main__":
app.run()
I'm also leaving this Gist here, if anyone have interest on updates for this example.
Here are some references, for future readings:
In latest version of JDK, 31 is still used. https://docs.oracle.com/en/java/javase/12/docs/api/java.base/java/lang/String.html#hashCode()
The purpose of hash string is
^
in hashcode calculation document, it help unique)31 is max value can put in 8 bit (= 1 byte) register, is largest prime number can put in 1 byte register, is odd number.
Multiply 31 is <<5 then subtract itself, therefore need cheap resources.
My approach. Tricky, but works well for me
<p> </p>
You could use ob_start();
before you send any output. This will tell to PHP to keep all the output in a buffer until the script execution ends, so you still can change the header.
Usually I don't use output buffering, for simple projects I keep all the logic on the first part of my script, then I output all HTML
.
As answered here: https://stackoverflow.com/a/1072151/421243, you can add the specific section to a hidden frame with Javascript, focus it, and print it.
//load css first, then print <link> to header, and execute callback
//just set var href above this..
$.ajax({
url: href,
dataType: 'css',
success: function(){
$('<link rel="stylesheet" type="text/css" href="'+href+'" />').appendTo("head");
//your callback
}
});
For Jquery 1.2.6 and above ( omitting the fancy attributes functions above ).
I am doing it this way because I think that this will ensure that your requested stylesheet is loaded by ajax before you try to stick it into the head. Therefore, the callback is executed after the stylesheet is ready.
Does someone know how I can use a String constant or String[] constant to supply value to an annotation?
Unfortunately, you can't do this with arrays. With non-array variables, the value must be final static.
To remove a timezone (tzinfo) from a datetime object:
# dt_tz is a datetime.datetime object
dt = dt_tz.replace(tzinfo=None)
If you are using a library like arrow, then you can remove timezone by simply converting an arrow object to to a datetime object, then doing the same thing as the example above.
# <Arrow [2014-10-09T10:56:09.347444-07:00]>
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444, tzinfo=tzoffset(None, -25200))
tmpDatetime = arrowObj.datetime
# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444)
tmpDatetime = tmpDatetime.replace(tzinfo=None)
Why would you do this? One example is that mysql does not support timezones with its DATETIME type. So using ORM's like sqlalchemy will simply remove the timezone when you give it a datetime.datetime
object to insert into the database. The solution is to convert your datetime.datetime
object to UTC (so everything in your database is UTC since it can't specify timezone) then either insert it into the database (where the timezone is removed anyway) or remove it yourself. Also note that you cannot compare datetime.datetime
objects where one is timezone aware and another is timezone naive.
##############################################################################
# MySQL example! where MySQL doesn't support timezones with its DATETIME type!
##############################################################################
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
arrowDt = arrowObj.to("utc").datetime
# inserts datetime.datetime(2014, 10, 9, 17, 56, 9, 347444, tzinfo=tzutc())
insertIntoMysqlDatabase(arrowDt)
# returns datetime.datetime(2014, 10, 9, 17, 56, 9, 347444)
dbDatetimeNoTz = getFromMysqlDatabase()
# cannot compare timzeone aware and timezone naive
dbDatetimeNoTz == arrowDt # False, or TypeError on python versions before 3.3
# compare datetimes that are both aware or both naive work however
dbDatetimeNoTz == arrowDt.replace(tzinfo=None) # True
I use
android:scaleX="0.70"
android:scaleY="0.70"
to ajust the size of checkbox
then I set margins like this
android:layout_marginLeft="-10dp"
to adjust ths location of the checkbox.
Here is a working solution for all EditTextPreference
s inside of a PreferenceFragment
based on @tdeveaux answer:
public class SettingsFragment extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener {
private static final String TAG = "SettingsFragment";
@Override
public void onCreate (Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferences);
getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
}
@Override
public void onResume () {
super.onResume();
for (int i = 0; i < getPreferenceScreen().getPreferenceCount(); ++i) {
Preference preference = getPreferenceScreen().getPreference(i);
updatePreference(preference);
}
}
@Override
public void onSharedPreferenceChanged (SharedPreferences sharedPreferences, String key) {
updatePreference(findPreference(key));
}
private void updatePreference (Preference preference) {
if (preference instanceof EditTextPreference) {
EditTextPreference editTextPreference = (EditTextPreference)preference;
editTextPreference.setSummary(editTextPreference.getText());
}
}
}
You can disable the check (if you're really sure you know what you're doing) by using the --force
option to git push
.
C11 timespec_get
It returns up to nanoseconds, rounded to the resolution of the implementation.
It is already implemented in Ubuntu 15.10. API looks the same as the POSIX clock_gettime
.
#include <time.h>
struct timespec ts;
timespec_get(&ts, TIME_UTC);
struct timespec {
time_t tv_sec; /* seconds */
long tv_nsec; /* nanoseconds */
};
More details here: https://stackoverflow.com/a/36095407/895245
A bit of encoding can solve this:
Client Side:
message = input("->")
clientSocket.sendto(message.encode('utf-8'), (address, port))
Server Side:
data = s.recv(1024)
modifiedMessage, serverAddress = clientSocket.recvfrom(message.decode('utf-8'))
Generally you shouldn't rely on system properties to configure a webapp - they may be used to configure the container (e.g. Tomcat) but not an application running inside tomcat.
cliff.meyers has already mentioned the way you should rather use for your webapplication. That's the standard way, that also fits your question of being configurable through context.xml or server.xml means.
That said, should you really need system properties or other jvm options (like max memory settings) in tomcat, you should create a file named "bin/setenv.sh" or "bin/setenv.bat". These files do not exist in the standard archive that you download, but if they are present, the content is executed during startup (if you start tomcat via startup.sh/startup.bat). This is a nice way to separate your own settings from the standard tomcat settings and makes updates so much easier. No need to tweak startup.sh or catalina.sh.
(If you execute tomcat as windows servive, you usually use tomcat5w.exe, tomcat6w.exe etc. to configure the registry settings for the service.)
EDIT: Also, another possibility is to go for JNDI Resources.
Following solution worked for me. When connecting to the db, specify that data should be truncated if they are too long (jdbcCompliantTruncation). My link looks like this:
jdbc:mysql://SERVER:PORT_NO/SCHEMA?sessionVariables=sql_mode='NO_ENGINE_SUBSTITUTION'&jdbcCompliantTruncation=false
If you increase the size of the strings, you may face the same problem in future if the string you are attempting to store into the DB is longer than the new size.
EDIT: STRICT_TRANS_TABLES has to be removed from sql_mode as well.
The syntax of set item is
localStorage.setItem(key,value);
The syntax of get item is
localStorage.getItem(key);
An example of this is:
localStorage.setItem('email','[email protected]');
let mail = localStorage.getItem("email");
if(mail){
console.log('your email id is', mail);
}
}
In case if anyone wants to grab only the Time from a ISO Date, following will be helpful. I was searching for that and I couldn't find a question for it. So in case some one sees will be helpful.
let isoDate = '2020-09-28T15:27:15+05:30';
let result = isoDate.match(/\d\d:\d\d/);
console.log(result[0]);
The output will be the only the time from isoDate which is,
15:27
Liam's link looks great, but also check out pandas.Timedelta
- looks like it plays nicely with NumPy's and Python's time deltas.
https://pandas.pydata.org/pandas-docs/stable/timedeltas.html
pd.date_range('2014-01-01', periods=10) + pd.Timedelta(days=1)
I was having this same problem too, I while multiple canvas elements with position:absolute does the job, if you want to save the output into an image, that's not going to work.
So I went ahead and did a simple layering "system" to code as if each layer had its own code, but it all gets rendered into the same element.
https://github.com/federicojacobi/layeredCanvas
I intend to add extra capabilities, but for now it will do.
You can do multiple functions and call them in order to "fake" layers.
SASS has a built-in rgba() function to evaluate values.
rgba($color, $alpha)
E.g.
rgba(#00aaff, 0.5) => rgba(0, 170, 255, 0.5)
An example using your own variables:
$my-color: #00aaff;
$my-opacity: 0.5;
.my-element {
color: rgba($my-color, $my-opacity);
}
Outputs:
.my-element {
color: rgba(0, 170, 255, 0.5);
}
Interesting blog post here:
http://geekswithblogs.net/cskardon/archive/2008/06/23/dispose-of-a-wpf-usercontrol-ish.aspx
It mentions subscribing to Dispatcher.ShutdownStarted to dispose of your resources.
Two options:
Use the LIKE
keyword, along with percent signs in the string
select * from table where field like '%a%' or field like '%b%'.
(note: If your search string contains percent signs, you'll need to escape them)
If you're looking for more a complex combination of strings than you've specified in your example, you could regular expressions (regex):
See the MySQL manual for more on how to use them: http://dev.mysql.com/doc/refman/5.1/en/regexp.html
Of these, using LIKE
is the most usual solution -- it's standard SQL, and in common use. Regex is less commonly used but much more powerful.
Note that whichever option you go with, you need to be aware of possible performance implications. Searching for sub-strings like this will mean that the query will have to scan the entire table. If you have a large table, this could make for a very slow query, and no amount of indexing is going to help.
If this is an issue for you, and you'r going to need to search for the same things over and over, you may prefer to do something like adding a flag field to the table which specifies that the string field contains the relevant sub-strings. If you keep this flag field up-to-date when you insert of update a record, you could simply query the flag when you want to search. This can be indexed, and would make your query much much quicker. Whether it's worth the effort to do that is up to you, it'll depend on how bad the performance is using LIKE
.
Something like this works fine for me:
public partial class Form1 : Form
{
Form mainFormHandler;
...
}
private void Form1_Load(object sender, EventArgs e){
mainFormHandler = Application.OpenForms[0];
//or instead use this one:
//mainFormHandler = Application.OpenForms["Form1"];
}
Then you can change the size as below:
mainFormHandler.Width = 600;
mainFormHandler.Height= 400;
or
mainFormHandler.Size = new Size(600, 400);
Another useful point is that if you want to change the size of mainForm
from another Form
, you can simply use Property to set the size.
You can use the generally available pr
command (man page here). For example, to convert tabs to four spaces, do this:
pr -t -e=4 file > file.expanded
-t
suppresses headers-e=num
expands tabs to num
spacesTo convert all files in a directory tree recursively, while skipping binary files:
#!/bin/bash
num=4
shopt -s globstar nullglob
for f in **/*; do
[[ -f "$f" ]] || continue # skip if not a regular file
! grep -qI "$f" && continue # skip binary files
pr -t -e=$num "$f" > "$f.expanded.$$" && mv "$f.expanded.$$" "$f"
done
The logic for skipping binary files is from this post.
NOTE:
Use:
AND oh.tran_date BETWEEN TRUNC(SYSDATE - 1) AND TRUNC(SYSDATE) - 1/86400
Reference: TRUNC
Calling a function on the tran_date
means the optimizer won't be able to use an index (assuming one exists) associated with it. Some databases, such as Oracle, support function based indexes which allow for performing functions on the data to minimize impact in such situations, but IME DBAs won't allow these. And I agree - they aren't really necessary in this instance.
While the above responses provide most of the answer it is useful--even this late to the question--to provide the full answer, to wit:
Array sub-expression (see about_arrays)
Forces the value to be an array, even if a singleton or a null, e.g. $a = @(ps | where name -like 'foo')
Hash initializer (see about_hash_tables)
Initializes a hash table with key-value pairs, e.g.
$HashArguments = @{ Path = "test.txt"; Destination = "test2.txt"; WhatIf = $true }
Splatting (see about_splatting)
Let's you invoke a cmdlet with parameters from an array or a hash-table rather than the more customary individually enumerated parameters, e.g. using the hash table just above, Copy-Item @HashArguments
Here strings (see about_quoting_rules)
Let's you create strings with easily embedded quotes, typically used for multi-line strings, e.g.:
$data = @"
line one
line two
something "quoted" here
"@
Because this type of question (what does 'x' notation mean in PowerShell?) is so common here on StackOverflow as well as in many reader comments, I put together a lexicon of PowerShell punctuation, just published on Simple-Talk.com. Read all about @ as well as % and # and $_ and ? and more at The Complete Guide to PowerShell Punctuation. Attached to the article is this wallchart that gives you everything on a single sheet:
As all answers posted above are well explained, I want to add something which I faced today.
When you export something using exports then you have to use it with variable. Like,
File1.js
exports.a = 5;
In another file
File2.js
const A = require("./File1.js");
console.log(A.a);
and using module.exports
File1.js
module.exports.a = 5;
In File2.js
const A = require("./File1.js");
console.log(A.a);
and default module.exports
File1.js
module.exports = 5;
in File2.js
const A = require("./File2.js");
console.log(A);
Your layout name is in snake_case.
activity_login.xml
Then your binding class name will be in CamelCase.
ActivityLoginBinding.java
Also build project after creating layout. Sometimes it is not generated automatically.
In case of API , or let say while implementing JWT . JWT middleware throws this exception when it couldn't find the token and will try to redirect to the log in route. Since it couldn't find any log in route specified it throws this exception . You can change the route in "app\Exceptions\Handler.php"
use Illuminate\Auth\AuthenticationException;
protected function unauthenticated($request, AuthenticationException $exception){
return $request->expectsJson()
? response()->json(['message' => $exception->getMessage()], 401)
: redirect()->guest(route('ROUTENAME'));
}
Run
sudo dpkg-reconfigure phpmyadmin
in your unix/linux/Mac console
Here's a one-module Python replacement for perl -p
:
# Provide compatibility with `perl -p`
# Usage:
#
# python -mloop_over_stdin_lines '<program>'
# In, `<program>`, use the variable `line` to read and change the current line.
# Example:
#
# python -mloop_over_stdin_lines 'line = re.sub("pattern", "replacement", line)'
# From the perlrun documentation:
#
# -p causes Perl to assume the following loop around your
# program, which makes it iterate over filename arguments
# somewhat like sed:
#
# LINE:
# while (<>) {
# ... # your program goes here
# } continue {
# print or die "-p destination: $!\n";
# }
#
# If a file named by an argument cannot be opened for some
# reason, Perl warns you about it, and moves on to the next
# file. Note that the lines are printed automatically. An
# error occurring during printing is treated as fatal. To
# suppress printing use the -n switch. A -p overrides a -n
# switch.
#
# "BEGIN" and "END" blocks may be used to capture control
# before or after the implicit loop, just as in awk.
#
import re
import sys
for line in sys.stdin:
exec(sys.argv[1], globals(), locals())
try:
print line,
except:
sys.exit('-p destination: $!\n')
Backticks will run the command on the local shell and put the results on the command line. What you're saying is 'execute ./test/foo.sh and then pass the output as if I'd typed it on the commandline here'.
Try the following command, and make sure that thats the path from your home directory on the remote computer to your script.
ssh kev@server1 './test/foo.sh'
Also, the script has to be on the remote computer. What this does is essentially log you into the remote computer with the listed command as your shell. You can't run a local script on a remote computer like this (unless theres some fun trick I don't know).
Using the excellent request
module:
var request = require('request');
request("http://stackoverflow.com", {method: 'HEAD'}, function (err, res, body){
console.log(res.headers);
});
You can change the method to GET
if you wish, but using HEAD
will save you from getting the entire response body if you only wish to look at the headers.
private static final String FILE_LOCATION = "com/input/file/somefile.txt";
//Method Body
InputStream invalidCharacterInputStream = URLClassLoader.getSystemResourceAsStream(FILE_LOCATION);
Getting this from getSystemResourceAsStream
is the best option. By getting the inputstream rather than the file or the URL, works in a JAR file and as stand alone.
If the line's coordinates are A.x, A.y and B.x, B.y and the circles center is C.x, C.y then the lines formulae are:
x = A.x * t + B.x * (1 - t)
y = A.y * t + B.y * (1 - t)
where 0<=t<=1
and the circle is
(C.x - x)^2 + (C.y - y)^2 = R^2
if you substitute x and y formulae of the line into the circles formula you get a second order equation of t and its solutions are the intersection points (if there are any). If you get a t which is smaller than 0 or greater than 1 then its not a solution but it shows that the line is 'pointing' to the direction of the circle.
If you have shell access to the server (the question mentions op does not have, but in case you have,) on a debian/ubuntu system
sudo apt-cache policy postgresql
which will output the installed version,
postgresql:
Installed: 9.6+184ubuntu1.1
Candidate: 9.6+184ubuntu1.1
Version table:
*** 9.6+184ubuntu1.1 500
500 http://in.archive.ubuntu.com/ubuntu artful-updates/main amd64 Packages
500 http://in.archive.ubuntu.com/ubuntu artful-updates/main i386 Packages
500 http://security.ubuntu.com/ubuntu artful-security/main amd64 Packages
500 http://security.ubuntu.com/ubuntu artful-security/main i386 Packages
100 /var/lib/dpkg/status
9.6+184ubuntu1 500
500 http://in.archive.ubuntu.com/ubuntu artful/main amd64 Packages
500 http://in.archive.ubuntu.com/ubuntu artful/main i386 Packages
where the Installed: <version>
is the installed postgres package version.
I had been having the exact same problem!
To get the internal SD card you can use
String extStore = System.getenv("EXTERNAL_STORAGE");
File f_exts = new File(extStore);
To get the external SD card you can use
String secStore = System.getenv("SECONDARY_STORAGE");
File f_secs = new File(secStore);
On running the code
extStore = "/storage/emulated/legacy"
secStore = "/storage/extSdCarcd"
works perfectly!
We can convert ararylist to array using 3 mrthod
public Object[] toArray() - it will return array of object
Object[] array = list.toArray();
public T[] toArray(T[] a) - In this way we will create array and toArray Take it as argument then return it
String[] arr = new String[list.size()];
arr = list.toArray(arr);
Public get() method;
Iterate ararylist and one by one add element in array.
For more details for these method Visit Java Vogue
UPDATE: 9/24/16 Angular 2.0 Stable
This question gets a lot of traffic still, so, I wanted to update it. With the insanity of changes from Alpha, Beta, and 7 RC candidates, I stopped updating my SO answers until they went stable.
This is the perfect case for using Subjects and ReplaySubjects
I personally prefer to use ReplaySubject(1)
as it allows the last stored value to be passed when new subscribers attach even when late:
let project = new ReplaySubject(1);
//subscribe
project.subscribe(result => console.log('Subscription Streaming:', result));
http.get('path/to/whatever/projects/1234').subscribe(result => {
//push onto subject
project.next(result));
//add delayed subscription AFTER loaded
setTimeout(()=> project.subscribe(result => console.log('Delayed Stream:', result)), 3000);
});
//Output
//Subscription Streaming: 1234
//*After load and delay*
//Delayed Stream: 1234
So even if I attach late or need to load later I can always get the latest call and not worry about missing the callback.
This also lets you use the same stream to push down onto:
project.next(5678);
//output
//Subscription Streaming: 5678
But what if you are 100% sure, that you only need to do the call once? Leaving open subjects and observables isn't good but there's always that "What If?"
That's where AsyncSubject comes in.
let project = new AsyncSubject();
//subscribe
project.subscribe(result => console.log('Subscription Streaming:', result),
err => console.log(err),
() => console.log('Completed'));
http.get('path/to/whatever/projects/1234').subscribe(result => {
//push onto subject and complete
project.next(result));
project.complete();
//add a subscription even though completed
setTimeout(() => project.subscribe(project => console.log('Delayed Sub:', project)), 2000);
});
//Output
//Subscription Streaming: 1234
//Completed
//*After delay and completed*
//Delayed Sub: 1234
Awesome! Even though we closed the subject it still replied with the last thing it loaded.
Another thing is how we subscribed to that http call and handled the response. Map is great to process the response.
public call = http.get(whatever).map(res => res.json())
But what if we needed to nest those calls? Yes you could use subjects with a special function:
getThing() {
resultSubject = new ReplaySubject(1);
http.get('path').subscribe(result1 => {
http.get('other/path/' + result1).get.subscribe(response2 => {
http.get('another/' + response2).subscribe(res3 => resultSubject.next(res3))
})
})
return resultSubject;
}
var myThing = getThing();
But that's a lot and means you need a function to do it. Enter FlatMap:
var myThing = http.get('path').flatMap(result1 =>
http.get('other/' + result1).flatMap(response2 =>
http.get('another/' + response2)));
Sweet, the var
is an observable that gets the data from the final http call.
OK thats great but I want an angular2 service!
I got you:
import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';
import { ReplaySubject } from 'rxjs';
@Injectable()
export class ProjectService {
public activeProject:ReplaySubject<any> = new ReplaySubject(1);
constructor(private http: Http) {}
//load the project
public load(projectId) {
console.log('Loading Project:' + projectId, Date.now());
this.http.get('/projects/' + projectId).subscribe(res => this.activeProject.next(res));
return this.activeProject;
}
}
//component
@Component({
selector: 'nav',
template: `<div>{{project?.name}}<a (click)="load('1234')">Load 1234</a></div>`
})
export class navComponent implements OnInit {
public project:any;
constructor(private projectService:ProjectService) {}
ngOnInit() {
this.projectService.activeProject.subscribe(active => this.project = active);
}
public load(projectId:string) {
this.projectService.load(projectId);
}
}
I'm a big fan of observers and observables so I hope this update helps!
Original Answer
I think this is a use case of using a Observable Subject or in Angular2
the EventEmitter
.
In your service you create a EventEmitter
that allows you to push values onto it. In Alpha 45 you have to convert it with toRx()
, but I know they were working to get rid of that, so in Alpha 46 you may be able to simply return the EvenEmitter
.
class EventService {
_emitter: EventEmitter = new EventEmitter();
rxEmitter: any;
constructor() {
this.rxEmitter = this._emitter.toRx();
}
doSomething(data){
this.rxEmitter.next(data);
}
}
This way has the single EventEmitter
that your different service functions can now push onto.
If you wanted to return an observable directly from a call you could do something like this:
myHttpCall(path) {
return Observable.create(observer => {
http.get(path).map(res => res.json()).subscribe((result) => {
//do something with result.
var newResultArray = mySpecialArrayFunction(result);
observer.next(newResultArray);
//call complete if you want to close this stream (like a promise)
observer.complete();
});
});
}
That would allow you do this in the component:
peopleService.myHttpCall('path').subscribe(people => this.people = people);
And mess with the results from the call in your service.
I like creating the EventEmitter
stream on its own in case I need to get access to it from other components, but I could see both ways working...
Here's a plunker that shows a basic service with an event emitter: Plunkr
const ParentComponent = (props) => {
return(
{props.childComponent}
//...additional JSX...
)
}
//import component
import MyComponent from //...where ever
//place in var
const myComponent = <MyComponent />
//pass as prop
<ParentComponent childComponent={myComponent} />
For Mac Users: The debug.keystore
file exists in ~/.android
directory. Sometimes, due to the relative path, the above mentioned error keeps on popping up.
Importing large sql file to MySql via command line
Example: mysql -u root -p aanew < aanew.sql
I wanted to use JavaScript to change a form's action, so I could have different submit inputs within the same form linking to different pages.
I also had the added complication of using Apache rewrite to change example.com/page-name
into example.com/index.pl?page=page-name
. I found that changing the form's action caused example.com/index.pl
(with no page parameter) to be rendered, even though the expected URL (example.com/page-name
) was displayed in the address bar.
To get around this, I used JavaScript to insert a hidden field to set the page parameter. I still changed the form's action, just so the address bar displayed the correct URL.
function setAction (element, page)
{
if(checkCondition(page))
{
/* Insert a hidden input into the form to set the page as a parameter.
*/
var input = document.createElement("input");
input.setAttribute("type","hidden");
input.setAttribute("name","page");
input.setAttribute("value",page);
element.form.appendChild(input);
/* Change the form's action. This doesn't chage which page is displayed,
* it just make the URL look right.
*/
element.form.action = '/' + page;
element.form.submit();
}
}
In the form:
<input type="submit" onclick='setAction(this,"my-page")' value="Click Me!" />
Here are my Apache rewrite rules:
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI} !-f
RewriteRule ^/(.*)$ %{DOCUMENT_ROOT}/index.pl?page=$1&%{QUERY_STRING}
I'd be interested in any explanation as to why just setting the action didn't work.
the_int=window.clearInterval(the_int);
At my last job we ran statistics once a week. If I remember correctly, we scheduled them on a Thursday night, and on Friday the DBAs were very careful to monitor the longest running queries for anything unexpected. (Friday was picked because it was often just after a code release, and tended to be a fairly low traffic day.) When they saw a bad query they would find a better query plan and save that one so it wouldn't change again unexpectedly. (Oracle has tools to do this for you automatically, you tell it the query to optimize and it does.)
Many organizations avoid running statistics out of fear of bad query plans popping up unexpectedly. But this usually means that their query plans get worse and worse over time. And when they do run statistics then they encounter a number of problems. The resulting scramble to fix those issues confirms their fears about the dangers of running statistics. But if they ran statistics regularly, used the monitoring tools as they are supposed to, and fixed issues as they came up then they would have fewer headaches, and they wouldn't encounter them all at once.
The following cods work for me:
compile group: 'commons-io', name: 'commons-io', version: '2.6'
@Value("classpath:mockResponse.json")
private Resource mockResponse;
String mockContent = FileUtils.readFileToString(mockResponse.getFile(), "UTF-8");
strtotime will convert your date string to a unix time stamp. (seconds since the unix epoch.
$ts1 = strtotime($date1);
$ts2 = strtotime($date2);
$seconds_diff = $ts2 - $ts1;
string jsonData1=@"[{""name"":""0"",""price"":""40"",""count"":""1"",""productId"":""4"",""catid"":""4"",""productTotal"":""40"",""orderstatus"":""0"",""orderkey"":""123456789""}]";
string jsonData = jsonData1.Replace("\"", "");
DataSet ds = new DataSet();
DataTable dt = new DataTable();
JArray array= JArray.Parse(jsonData);
couldnot parse , if the vaule is a string..
look at name : meals , if name : 1 then it will parse
assuming the item numbers are unique, a VLOOKUP
should get you the information you need.
first value would be =VLOOKUP(E1,A:B,2,FALSE)
, and the same type of formula to retrieve the second value would be =VLOOKUP(E1,C:D,2,FALSE)
. Wrap them in an IFERROR
if you want to return anything other than #N/A if there is no corresponding value in the item column(s)
If you're struggling with such an issue using Lollipop (Android 5.*) probably you guys should do one simple step that I'd done before my ADB (I use Ubuntu) got my phone:
Change USB PC connection type to "Send images(PTP)" (before I've been using "Media device(MTP)")
Just like this:
And don't forget to activate checkbox "USB debugging".
There are some cases where 404 page cannot be written to be executed as the last route, especially if you have an asynchronous routing function that brings in a /route late to the party. The pattern below might be adopted in those cases.
var express = require("express.io"),
app = express(),
router = express.Router();
router.get("/hello", function (req, res) {
res.send("Hello World");
});
// Router is up here.
app.use(router);
app.use(function(req, res) {
res.send("Crime Scene 404. Do not repeat");
});
router.get("/late", function (req, res) {
res.send("Its OK to come late");
});
app.listen(8080, function (){
console.log("Ready");
});
You need to put the files into an array in order to sort and find the last modified file.
$files = array();
if ($handle = opendir('.')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
$files[filemtime($file)] = $file;
}
}
closedir($handle);
// sort
ksort($files);
// find the last modification
$reallyLastModified = end($files);
foreach($files as $file) {
$lastModified = date('F d Y, H:i:s',filemtime($file));
if(strlen($file)-strpos($file,".swf")== 4){
if ($file == $reallyLastModified) {
// do stuff for the real last modified file
}
echo "<tr><td><input type=\"checkbox\" name=\"box[]\"></td><td><a href=\"$file\" target=\"_blank\">$file</a></td><td>$lastModified</td></tr>";
}
}
}
Not tested, but that's how to do it.
You can do this using the branch filter
command:
git filter-branch --tree-filter 'rm -rf path/to/your/file' HEAD
Split the words without without harming apostrophes inside words Please find the input_1 and input_2 Moore's law
def split_into_words(line):
import re
word_regex_improved = r"(\w[\w']*\w|\w)"
word_matcher = re.compile(word_regex_improved)
return word_matcher.findall(line)
#Example 1
input_1 = "computational power (see Moore's law) and "
split_into_words(input_1)
# output
['computational', 'power', 'see', "Moore's", 'law', 'and']
#Example 2
input_2 = """Oh, you can't help that,' said the Cat: 'we're all mad here. I'm mad. You're mad."""
split_into_words(input_2)
#output
['Oh',
'you',
"can't",
'help',
'that',
'said',
'the',
'Cat',
"we're",
'all',
'mad',
'here',
"I'm",
'mad',
"You're",
'mad']
First of all, link_to is a html tag helper, its second argument is the url, followed by html_options. What you would like is to pass account_id as a url parameter to the path. If you have set up named routes correctly in routes.rb, you can use path helpers.
link_to "+ Service", new_my_service_path(:account_id => acct.id)
I think the best practice is to pass model values as a param nested within :
link_to "+ Service", new_my_service_path(:my_service => { :account_id => acct.id })
# my_services_controller.rb
def new
@my_service = MyService.new(params[:my_service])
end
And you need to control that account_id is allowed for 'mass assignment'. In rails 3 you can use powerful controls to filter valid params within the controller where it belongs. I highly recommend.
http://apidock.com/rails/ActiveModel/MassAssignmentSecurity/ClassMethods
Also note that if account_id is not freely set by the user (e.g., a user can only submit a service for the own single account_id, then it is better practice not to send it via the request, but set it within the controller by adding something like:
@my_service.account_id = current_user.account_id
You can surely combine the two if you only allow users to create service on their own account, but allow admin to create anyone's by using roles in attr_accessible.
hope this helps
For those who don't want to install PhantomJS along with an instance of Chrome/Firefox on their server - or because the PhantomJS project is currently suspended, here's an alternative.
You can externalize the conversions to APIs to do the job. Many exists and varies but what you'll get is a reliable service with up-to-date features (I'm thinking CSS3, Web fonts, SVG, Canvas compatible).
For instance, with PDFShift (disclaimer, I'm the founder), you can do this simply by using the request
package:
const request = require('request')
request.post(
'https://api.pdfshift.io/v2/convert/',
{
'auth': {'user': 'your_api_key'},
'json': {'source': 'https://www.google.com'},
'encoding': null
},
(error, response, body) => {
if (response === undefined) {
return reject({'message': 'Invalid response from the server.', 'code': 0, 'response': response})
}
if (response.statusCode == 200) {
// Do what you want with `body`, that contains the binary PDF
// Like returning it to the client - or saving it as a file locally or on AWS S3
return True
}
// Handle any errors that might have occured
}
);
You shouldn´t use client javascript to access databases for several reasons (bad practice, security issues, etc) but if you really want to do this, here is an example:
var connection = new ActiveXObject("ADODB.Connection") ;
var connectionstring="Data Source=<server>;Initial Catalog=<catalog>;User ID=<user>;Password=<password>;Provider=SQLOLEDB";
connection.Open(connectionstring);
var rs = new ActiveXObject("ADODB.Recordset");
rs.Open("SELECT * FROM table", connection);
rs.MoveFirst
while(!rs.eof)
{
document.write(rs.fields(1));
rs.movenext;
}
rs.close;
connection.close;
A better way to connect to a sql server would be to use some server side language like PHP, Java, .NET, among others. Client javascript should be used only for the interfaces.
And there are rumors of an ancient legend about the existence of server javascript, but this is another story. ;)
The difference lies in their usage. The single quotes are mostly used to refer a string in WHERE, HAVING and also in some built-in SQL functions like CONCAT, STRPOS, POSITION etc.
When you want to use an alias that has space in between then you can use double quotes to refer to that alias.
For example
(select account_id,count(*) "count of" from orders group by 1)sub
Here is a subquery from an orders table having account_id as Foreign key that I am aggregating to know how many orders each account placed. Here I have given one column any random name as "count of" for sake of purpose.
Now let's write an outer query to display the rows where "count of" is greater than 20.
select "count of" from
(select account_id,count(*) "count of" from orders group by 1)sub where "count of" >20;
You can apply the same case to Common Table expressions also.
Here is .htacess file that hide index file
#RewriteEngine on
#RewriteCond $1 !^(index\.php|images|robots\.txt)
#RewriteRule ^(.*)$ /index.php/$1 [L]
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
# Removes index.php from ExpressionEngine URLs
RewriteCond %{THE_REQUEST} ^GET.*index\.php [NC]
RewriteCond %{REQUEST_URI} !/system/.* [NC]
RewriteRule (.*?)index\.php/*(.*) /$1$2 [R=301,NE,L]
# Directs all EE web requests through the site index file
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]
</IfModule>
$datetime = date("Y-m-d h:i:s");
$timestamp = strtotime($datetime);
$image = $_POST['image'];
$imgdata = base64_decode($image);
$f = finfo_open();
$mime_type = finfo_buffer($f, $imgdata, FILEINFO_MIME_TYPE);
$temp=explode('/',$mime_type);
$path = "uploads/$timestamp.$temp[1]";
file_put_contents($path,base64_decode($image));
echo "Successfully Uploaded->>> $timestamp.$temp[1]";
This will be enough for image processing. Special thanks to Mr. Dev Karan Sharma
For strings like that, for me the most comfortable way to do it is doubling the ' or ", as explained in the MySQL manual:
There are several ways to include quote characters within a string:
A “'” inside a string quoted with “'” may be written as “''”. A “"” inside a string quoted with “"” may be written as “""”. Precede the quote character by an escape character (“\”). A “'” inside a string quoted with “"” needs no special treatment and need not be doubled or escaped. In the same way, “"” inside a
Strings quoted with “'” need no special treatment.
It is from http://dev.mysql.com/doc/refman/5.0/en/string-literals.html.
Both works fine. But according to the Apache docs you should avoid using mod_rewrite
for simple redirections, and use Redirect
instead. So according to them, you should preferably do:
<VirtualHost *:80>
ServerName www.example.com
Redirect / https://www.example.com/
</VirtualHost>
<VirtualHost *:443>
ServerName www.example.com
# ... SSL configuration goes here
</VirtualHost>
The first /
after Redirect
is the url, the second part is where it should be redirected.
You can also use it to redirect URLs to a subdomain:
Redirect /one/ http://one.example.com/
Marc Gravell's answer should work for you. myDictionary.Keys
returns an object that implements ICollection<TKey>
, IEnumerable<TKey>
and their non-generic counterparts.
I just wanted to add that if you plan on accessing the value as well, you could loop through the dictionary like this (modified example):
Dictionary<string, int> data = new Dictionary<string, int>();
data.Add("abc", 123);
data.Add("def", 456);
foreach (KeyValuePair<string, int> item in data)
{
Console.WriteLine(item.Key + ": " + item.Value);
}
On supported C compilers it tries to optimize the code so that variable's value is held in an actual processor register.
earl's answer gives you the solution, but I thought I'd add what the problem is that's causing your IllegalStateException
. You're calling group(1)
without having first called a matching operation (such as find()
). This isn't needed if you're just using $1
since the replaceAll()
is the matching operation.
The document.write method is very limited. You can only use it before the page has finished loading. You can't use it to update the contents of a loaded page.
What you probably want is innerHTML.
I used this to achieve the results:
<input type=checkbox onclick="return false;" onkeydown="return false;" />
In my case, it was because of exception inside the constructor of my injected dependency (in your example - inside DashboardRepository constructor). The exception was caught somewhere inside MVC infrastructure. I found this after I added logs in relevant places.
You can use getRawValue()
this.formGroup.getRawValue().attribute
Option 1 using an InputStreamResource
Resource implementation for a given InputStream.
Should only be used if no other specific Resource implementation is > applicable. In particular, prefer ByteArrayResource or any of the file-based Resource implementations where possible.
@RequestMapping(path = "/download", method = RequestMethod.GET)
public ResponseEntity<Resource> download(String param) throws IOException {
// ...
InputStreamResource resource = new InputStreamResource(new FileInputStream(file));
return ResponseEntity.ok()
.headers(headers)
.contentLength(file.length())
.contentType(MediaType.APPLICATION_OCTET_STREAM)
.body(resource);
}
Option2 as the documentation of the InputStreamResource suggests - using a ByteArrayResource:
@RequestMapping(path = "/download", method = RequestMethod.GET)
public ResponseEntity<Resource> download(String param) throws IOException {
// ...
Path path = Paths.get(file.getAbsolutePath());
ByteArrayResource resource = new ByteArrayResource(Files.readAllBytes(path));
return ResponseEntity.ok()
.headers(headers)
.contentLength(file.length())
.contentType(MediaType.APPLICATION_OCTET_STREAM)
.body(resource);
}
$("ul").empty()
works fine. Is there some other error?
$('input').click(function() {_x000D_
$('ul').empty()_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<ul>_x000D_
<li>test</li>_x000D_
<li>test</li>_x000D_
</ul>_x000D_
_x000D_
<input type="button" value="click me" />
_x000D_
When you need to create a lot of REST API endpoints on Symfony, the best way is to use following stack of bundles:
When you configure everything properly, you entity code will look like:
use Doctrine\ORM\Mapping as ORM;
use JMS\Serializer\Annotation as JMS;
/**
* @ORM\Table(name="company")
*/
class Company
{
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=255)
*
* @JMS\Expose()
* @JMS\SerializedName("name")
* @JMS\Groups({"company_overview"})
*/
private $name;
/**
* @var Campaign[]
*
* @ORM\OneToMany(targetEntity="Campaign", mappedBy="company")
*
* @JMS\Expose()
* @JMS\SerializedName("campaigns")
* @JMS\Groups({"campaign_overview"})
*/
private $campaigns;
}
Then, code in controller:
use Nelmio\ApiDocBundle\Annotation\ApiDoc;
use FOS\RestBundle\Controller\Annotations\View;
class CompanyController extends Controller
{
/**
* Retrieve all companies
*
* @View(serializerGroups={"company_overview"})
* @ApiDoc()
*
* @return Company[]
*/
public function cgetAction()
{
return $this->getDoctrine()->getRepository(Company::class)->findAll();
}
}
The benefits of such set up are:
You can use the is_cart() conditional tag:
if (! is_cart() ) {
// Do something.
}
In the controller, shouldn't the response body annotation be on the return type and not the method, like so :
@RequestMapping(value="/getTemperature/{id}", headers="Accept=*/*", method = RequestMethod.GET)
public @ResponseBody Weather getTemparature(@PathVariable("id") Integer id){
Weather weather = weatherService.getCurrentWeather(id);
return weather;
}
I'd also use the raw jquery.ajax function, and make sure contentType and dataType are being set correctly.
On a different note, I find the spring handling of json rather problematic. It was easier when I did it all myself using strings, and GSON.
You actually need 3 meta
tags to support Android, iPhone and Windows Phone
<!-- Chrome, Firefox OS and Opera -->
<meta name="theme-color" content="#4285f4">
<!-- Windows Phone -->
<meta name="msapplication-navbutton-color" content="#4285f4">
<!-- iOS Safari -->
<meta name="apple-mobile-web-app-status-bar-style" content="#4285f4">
It's been commented multiple times that this is not the correct answer to this question, and I agree. Back when this answer was written, IE 9 was still new (about 8 months old) and many developers including myself needed a solution for <= IE 9. IE 9 is when IE started supporting background-origin
. However, it's been over six and a half years, so here's the updated solution which I highly recommend over using an actual border. In case < IE 9 support is needed. My original answer can be found below the demo snippet. It uses an opaque border to simulate padding for background images.
#hello {
padding-right: 10px;
background-color:green;
background: url("https://placehold.it/15/5C5/FFF") no-repeat scroll right center #e8e8e8;
background-origin: content-box;
}
_x000D_
<p id="hello">I want the background icon to have padding to it too!I want the background icon twant the background icon to have padding to it too!I want the background icon to have padding to it too!I want the background icon to have padding to it too!</p>
_x000D_
you can fake it with a 10px border of the same color as the background:
http://jsbin.com/eparad/edit#javascript,html,live
#hello {
border: 10px solid #e8e8e8;
background-color: green;
background: url("http://www.costascuisine.com/images/buttons/collapseIcon.gif")
no-repeat scroll right center #e8e8e8;
}
This is basically a "some (but not all)" functionality (when contrasted with the any()
and all()
builtin functions).
This implies that there should be False
s and True
s among the results. Therefore, you can do the following:
some = lambda ii: frozenset(bool(i) for i in ii).issuperset((True, False))
# one way to test this is...
test = lambda iterable: (any(iterable) and (not all(iterable))) # see also http://stackoverflow.com/a/16522290/541412
# Some test cases...
assert(some(()) == False) # all() is true, and any() is false
assert(some((False,)) == False) # any() is false
assert(some((True,)) == False) # any() and all() are true
assert(some((False,False)) == False)
assert(some((True,True)) == False)
assert(some((True,False)) == True)
assert(some((False,True)) == True)
One advantage of this code is that you only need to iterate once through the resulting (booleans) items.
One disadvantage is that all these truth-expressions are always evaluated, and do not do short-circuiting like the or
/and
operators.
After trying almost every key on my keyboard:
C:\Users\Tim>cd ^
Mehr? Desktop
C:\Users\Tim\Desktop>
So it seems to be the ^ key.
The same way how an int
can be positive or negative. There is no difference. Actually on many platforms unqualified char
is signed.
As far as I know, there's a good library called localeplanet
for Localization and Internationalization in JavaScript. Furthermore, I think it's native and has no dependencies to other libraries (e.g. jQuery)
Here's the website of library: http://www.localeplanet.com/
Also look at this article by Mozilla, you can find very good method and algorithms for client-side translation: http://blog.mozilla.org/webdev/2011/10/06/i18njs-internationalize-your-javascript-with-a-little-help-from-json-and-the-server/
The common part of all those articles/libraries is that they use a i18n
class and a get
method (in some ways also defining an smaller function name like _
) for retrieving/converting the key
to the value
. In my explaining the key
means that string you want to translate and the value
means translated string.
Then, you just need a JSON document to store key
's and value
's.
For example:
var _ = document.webL10n.get;
alert(_('test'));
And here the JSON:
{ test: "blah blah" }
I believe using current popular libraries solutions is a good approach.
The struct module mimics C structures. It takes more CPU cycles for a processor to read a 16-bit word on an odd address or a 32-bit dword on an address not divisible by 4, so structures add "pad bytes" to make structure members fall on natural boundaries. Consider:
struct { 11
char a; 012345678901
short b; ------------
char c; axbbcxxxdddd
int d;
};
This structure will occupy 12 bytes of memory (x being pad bytes).
Python works similarly (see the struct documentation):
>>> import struct
>>> struct.pack('BHBL',1,2,3,4)
'\x01\x00\x02\x00\x03\x00\x00\x00\x04\x00\x00\x00'
>>> struct.calcsize('BHBL')
12
Compilers usually have a way of eliminating padding. In Python, any of =<>! will eliminate padding:
>>> struct.calcsize('=BHBL')
8
>>> struct.pack('=BHBL',1,2,3,4)
'\x01\x02\x00\x03\x04\x00\x00\x00'
Beware of letting struct handle padding. In C, these structures:
struct A { struct B {
short a; int a;
char b; char b;
}; };
are typically 4 and 8 bytes, respectively. The padding occurs at the end of the structure in case the structures are used in an array. This keeps the 'a' members aligned on correct boundaries for structures later in the array. Python's struct module does not pad at the end:
>>> struct.pack('LB',1,2)
'\x01\x00\x00\x00\x02'
>>> struct.pack('LBLB',1,2,3,4)
'\x01\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00\x04'
As of Xcode 7.0.1 println is change to print. Look at the image. there are lot more we can print out.
To handle it, I use the following click method. This will attempt to find and click the element. If the DOM changes between the find and click, it will try again. The idea is that if it failed and I try again immediately the second attempt will succeed. If the DOM changes are very rapid then this will not work.
public boolean retryingFindClick(By by) {
boolean result = false;
int attempts = 0;
while(attempts < 2) {
try {
driver.findElement(by).click();
result = true;
break;
} catch(StaleElementException e) {
}
attempts++;
}
return result;
}
Here's an easier way of doing this (source: here):
import matplotlib.pyplot as plt
from numpy.random import rand
fig, ax = plt.subplots()
for color in ['red', 'green', 'blue']:
n = 750
x, y = rand(2, n)
scale = 200.0 * rand(n)
ax.scatter(x, y, c=color, s=scale, label=color,
alpha=0.3, edgecolors='none')
ax.legend()
ax.grid(True)
plt.show()
And you'll get this:
Take a look at here for legend properties
For windows users execute the following command in PowerShell window to kill all the node processes.
Stop-Process -processname node
This has worked for me:
let webApiUrl = 'example.com/getStuff';
let tokenStr = 'xxyyzz';
axios.get(webApiUrl, { headers: {"Authorization" : `Bearer ${tokenStr}`} });
You should try using the File System Object or FSO. There are many methods belonging to this object that check if folders exist as well as creating new folders.
you can use command
date | awk '{print $4}'| cut -d ':' -f3
as you mentioned using only the date|awk '{print $4}'
pipeline gives you something like this
20:18:19
so as we can see if we want to extract some part of this string then we need a delimiter , for our case it is :
, so we decide to chop on the basis of :
.
Now this delimiter will chop the string into three parts i.e. 20 ,18 and 19 , as we want the second one we use -f2 in our command.
to sum up ,
cut
: chops some string based on delimeter.
-d
: delimeter (here :
)
-f2
: the chopped off token that we want.
If you don't want to install xDebug or other extensions and just want to run a PHP file without debugging, you can accomplish this using build tasks.
First open the command palette (Ctrl+Shift+P in Windows, ?+Shift+P in Mac), and select "Tasks:Open User Tasks". Now copy my configuration below into your tasks.json file. This creates user-level tasks which can be used any time and in any workspace.
{
"version": "2.0.0",
"tasks": [
{
"label": "Start Server",
"type": "shell",
"command": "php -S localhost:8080 -t ${fileDirname}",
"isBackground": true,
"group": "build",
"problemMatcher": []
},
{
"label": "Run In Browser",
"type": "shell",
"command": "open http://localhost:8080/${fileBasename}",
"windows": {
"command": "explorer 'http://localhost:8080/${fileBasename}'"
},
"group": "build",
"problemMatcher": []
}
{
"label": "Run In Terminal",
"type": "shell",
"command": "php ${file}",
"group": "none",
"problemMatcher": []
}
]
}
If you want to run your php file in the terminal, open the command palette and select "Tasks: Run Task" followed by "Run In Terminal".
If you want to run your code on a webserver which serves a response to a web browser, open the command palette and select "Tasks: Run Task" followed by "Start Server" to run PHP's built-in server, then "Run In Browser" to run the currently open file from your browser.
Note that if you already have a webserver running, you can remove the Start Server
task and update the localhost:8080
part to point to whatever URL you are using.
Note: This section was in my original answer. I originally thought that it works without PHP Debug but it looks like PHP Debug actually exposes the php
type in the launch configuration. There is no reason to use it over the build task method described above. I'm keeping it here in case it is useful.
Copy the following configuration into your user settings:
{
"launch": {
"version": "0.2.0",
"configurations": [
{
"type": "php",
"request": "launch",
"name": "Run using PHP executable",
"program": "${file}",
"runtimeExecutable": "/usr/bin/php"
},
]
},
// all your other user settings...
}
This creates a global launch configuration that you can use on any PHP file. Note the runtimeExecutable
option. You will need to update this with the path to the PHP executable on your machine. After you copy the configuration above, whenever you have a PHP file open, you can press the F5 key to run the PHP code and have the output displayed in the vscode terminal.
I also experienced this when I upgraded operating system from Windows 8
to Windows 8.1
. Un-installing Virtualbox
and re-installing worked for me.
Late edit: there is an official plugin for Chart.js 2.7.0+
to do this: https://github.com/chartjs/chartjs-plugin-datalabels
Original answer:
You can loop through the points / bars onAnimationComplete and display the values
Preview
HTML
<canvas id="myChart1" height="300" width="500"></canvas>
<canvas id="myChart2" height="300" width="500"></canvas>
Script
var chartData = {
labels: ["January", "February", "March", "April", "May", "June"],
datasets: [
{
fillColor: "#79D1CF",
strokeColor: "#79D1CF",
data: [60, 80, 81, 56, 55, 40]
}
]
};
var ctx = document.getElementById("myChart1").getContext("2d");
var myLine = new Chart(ctx).Line(chartData, {
showTooltips: false,
onAnimationComplete: function () {
var ctx = this.chart.ctx;
ctx.font = this.scale.font;
ctx.fillStyle = this.scale.textColor
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
this.datasets.forEach(function (dataset) {
dataset.points.forEach(function (points) {
ctx.fillText(points.value, points.x, points.y - 10);
});
})
}
});
var ctx = document.getElementById("myChart2").getContext("2d");
var myBar = new Chart(ctx).Bar(chartData, {
showTooltips: false,
onAnimationComplete: function () {
var ctx = this.chart.ctx;
ctx.font = this.scale.font;
ctx.fillStyle = this.scale.textColor
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
this.datasets.forEach(function (dataset) {
dataset.bars.forEach(function (bar) {
ctx.fillText(bar.value, bar.x, bar.y - 5);
});
})
}
});
Fiddle - http://jsfiddle.net/uh9vw0ao/
w/o flip:
<?php
foreach ($items as $key => $value) {
if ($id === $value) {
unset($items[$key]);
}
}
If you're serious about handling all of the invalid characters (not just the few "html" ones), and you have access to System.Xml
, here's the simplest way to do proper Xml encoding of value data:
string theTextToEscape = "Something \x1d else \x1D <script>alert('123');</script>";
var x = new XmlDocument();
x.LoadXml("<r/>"); // simple, empty root element
x.DocumentElement.InnerText = theTextToEscape; // put in raw string
string escapedText = x.DocumentElement.InnerXml; // Returns: Something  else  <script>alert('123');</script>
// Repeat the last 2 lines to escape additional strings.
It's important to know that XmlConvert.EncodeName()
is not appropriate, because that's for entity/tag names, not values. Using that would be like Url-encoding when you needed to Html-encode.
breast$class <- as.numeric(as.character(breast$class))
If you have many columns to convert to numeric
indx <- sapply(breast, is.factor)
breast[indx] <- lapply(breast[indx], function(x) as.numeric(as.character(x)))
Another option is to use stringsAsFactors=FALSE
while reading the file using read.table
or read.csv
Just in case, other options to create/change columns
breast[,'class'] <- as.numeric(as.character(breast[,'class']))
or
breast <- transform(breast, class=as.numeric(as.character(breast)))
You Can simply Use One Jsp Page To accomplish the task.
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page import="java.sql.*"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%
String username=request.getParameter("user_name");
String password=request.getParameter("password");
String role=request.getParameter("role");
try
{
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/t_fleet","root","root");
Statement st=con.createStatement();
String query="select * from tbl_login where user_name='"+username+"' and password='"+password+"' and role='"+role+"'";
ResultSet rs=st.executeQuery(query);
while(rs.next())
{
session.setAttribute( "user_name",rs.getString(2));
session.setMaxInactiveInterval(3000);
response.sendRedirect("homepage.jsp");
}
%>
<%}
catch(Exception e)
{
out.println(e);
}
%>
</body>
I have use username, password and role to get into the system. One more thing to implement is you can do page permission checking through jsp and javascript function.
As usual, create an SSH key and paste the public key to GitHub. Add the private key to ssh-agent. (I assume this is what you have done.)
To check everything is correct, use ssh -T [email protected]
Next, don't forget to modify the remote point as follows:
git remote set-url origin [email protected]:username/your-repository.git
If you're looking to find both variations of the square brackets at the same time, you can use the following pattern which defines a range of either the [
sign or the ]
sign: /[\[\]]/
If you get an exception for : Invalid column type
Please use getNamedParameterJdbcTemplate()
instead of getJdbcTemplate()
List<Foo> foo = getNamedParameterJdbcTemplate().query("SELECT * FROM foo WHERE a IN (:ids)",parameters,
getRowMapper());
Note that the second two arguments are swapped around.
For me i started getting this problem when I upgraded to java 8, and then reverted back to java 7. Upgraded again to java 8 and the problem got resolved.
Small hint which other people didn't talk about: git doesn't record changes if you add empty folders in your project folder. That's it, I was adding empty folders with random names to check wether it was recording changes, it wasn't. But it started to do it as soon as I began adding files in them. Cheers.
To use it in phtml apply :
echo $this->getSkinUrl('your_image_folder_under_skin/image_name.png');
To use skin path in cms page :
<img style="width: 715px; height: 266px;" src="{{skin url=images/banner1.jpg}}" alt="title" />
This part====> {{skin url=images/banner1.jpg}}
I hope this will help you.
CSTR({number_field}, 0, '')
The second placeholder is for decimals.
The last placeholder is for thousands separator.
The thing with your method is that you clutter your HTML with javascript. If you put your javascript in an external file you can access your HTML unobtrusive and this is much neater.
Lateron you can expand your code with addEventListener/attackEvent(IE) to prevent memory leaks.
This is without jQuery
<a href="123.com" id="elementid">link</a>
window.onload = function () {
var el = document.getElementById('elementid');
el.onclick = function (e) {
var ev = e || window.event;
// here u can use this or el as the HTML node
}
}
You say you want to manipulate it with jQuery. So you can use jQuery. Than it is even better to do it like this:
// this is the window.onload startup of your JS as in my previous example. The difference is
// that you can add multiple onload functions
$(function () {
$('a#elementid').bind('click', function (e) {
// "this" points to the <a> element
// "e" points to the event object
});
});
Using jQuery appendTo try this:
var holdyDiv = $('<div></div>').attr('id', 'holdy');
holdyDiv.appendTo('body');
Full validation example with javascript:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Radio button: full validation example with javascript</title>
<script>
function send() {
var genders = document.getElementsByName("gender");
if (genders[0].checked == true) {
alert("Your gender is male");
} else if (genders[1].checked == true) {
alert("Your gender is female");
} else {
// no checked
var msg = '<span style="color:red;">You must select your gender!</span><br /><br />';
document.getElementById('msg').innerHTML = msg;
return false;
}
return true;
}
function reset_msg() {
document.getElementById('msg').innerHTML = '';
}
</script>
</head>
<body>
<form action="" method="POST">
<label>Gender:</label>
<br />
<input type="radio" name="gender" value="m" onclick="reset_msg();" />Male
<br />
<input type="radio" name="gender" value="f" onclick="reset_msg();" />Female
<br />
<div id="msg"></div>
<input type="submit" value="send>>" onclick="return send();" />
</form>
</body>
</html>
Regards,
Fernando
You can also use rdp/specific_install gem:
gem install specific_install
gem specific_install https://github.com/capistrano/drupal-deploy.git
This is an extension function I wrote in Kotlin to use with the RecyclerView
(based on @Paul Woitaschek answer):
fun RecyclerView.smoothSnapToPosition(position: Int, snapMode: Int = LinearSmoothScroller.SNAP_TO_START) {
val smoothScroller = object : LinearSmoothScroller(this.context) {
override fun getVerticalSnapPreference(): Int = snapMode
override fun getHorizontalSnapPreference(): Int = snapMode
}
smoothScroller.targetPosition = position
layoutManager?.startSmoothScroll(smoothScroller)
}
Use it like this:
myRecyclerView.smoothSnapToPosition(itemPosition)
merge
actually doesn't work like OR
. It's simply intersection (AND
)
I struggled with this problem to combine to ActiveRecord::Relation objects into one and I didn't found any working solution for me.
Instead of searching for right method creating an union from these two sets, I focused on algebra of sets. You can do it in different way using De Morgan's law
ActiveRecord provides merge method (AND) and also you can use not method or none_of (NOT).
search.where.none_of(search.where.not(id: ids_to_exclude).merge(search.where.not("title ILIKE ?", "%#{query}%")))
You have here (A u B)' = A' ^ B'
UPDATE: The solution above is good for more complex cases. In your case smth like that will be enough:
User.where('first_name LIKE ? OR last_name LIKE ?', 'Tobias', 'Fünke')
I hope this is what you are looking for.
class Try:
def do_somthing(self):
print 'Hello'
if __name__ == '__main__':
obj_list = []
for obj in range(10):
obj = Try()
obj_list.append(obj)
obj_list[0].do_somthing()
Output:
Hello
I know you're interested in a more general answer, but what's good in ASCII is usually good in other encodings. Here is a Python one-liner to determine if standard input is ASCII. (I'm pretty sure this works in Python 2, but I've only tested it on Python 3.)
python -c 'from sys import exit,stdin;exit()if 128>max(c for l in open(stdin.fileno(),"b") for c in l) else exit("Not ASCII")' < myfile.txt
I think the most correct way to get item position is
View.OnClickListener onClickListener = new View.OnClickListener() {
@Override public void onClick(View v) {
View view = v;
View parent = (View) v.getParent();
while (!(parent instanceof RecyclerView)){
view=parent;
parent = (View) parent.getParent();
}
int position = recyclerView.getChildAdapterPosition(view);
}
Because view, you click not always the root view of your row layout. If view is not a root one (e.g buttons), you will get Class cast exception. Thus at first we need to find the view, which is the a dirrect child of you reciclerview. Then, find position using recyclerView.getChildAdapterPosition(view);
Normally this is done using a Factory pattern
public interface IXMLizableFactory<T extends IXMLizable> {
public T newInstanceFromXML(Element e);
}
public interface IXMLizable {
public Element toXMLElement();
}
split($pattern,$string)
split strings within a given pattern or regex (it's deprecated since 5.3.0)
preg_split($pattern,$string)
split strings within a given regex pattern
explode($pattern,$string)
split strings within a given pattern
end($arr)
get last array element
So:
end(split('-',$str))
end(preg_split('/-/',$str))
$strArray = explode('-',$str)
$lastElement = end($strArray)
Will return the last element of a -
separated string.
And there's a hardcore way to do this:
$str = '1-2-3-4-5';
echo substr($str, strrpos($str, '-') + 1);
// | '--- get the last position of '-' and add 1(if don't substr will get '-' too)
// '----- get the last piece of string after the last occurrence of '-'
In this sample in catch block i change the value of counter and it will break while block:
class TestBreak {
public static void main(String[] a) {
int counter = 0;
while(counter<5) {
try {
counter++;
int x = counter/0;
}
catch(Exception e) {
counter = 1000;
}
}
}
}k
$(document).ready(function(){
$('#TextBoxId').keypress(function(e){
if(e.keyCode==13)
$('#linkadd').click();
});
});
Xamarin.iOS version for UICollectionView
of the accepted answer for ease in copying and pasting
var bottomOffset = new CGPoint (0, CollectionView.ContentSize.Height - CollectionView.Frame.Size.Height + CollectionView.ContentInset.Bottom);
CollectionView.SetContentOffset (bottomOffset, false);
IPv4 uses 32 bits, in the form of:
255.255.255.255
I suppose it depends on your datatype, whether you're just storing as a string with a CHAR type or if you're using a numerical type.
IPv6 uses 128 bits. You won't have IPs longer than that unless you're including other information with them.
IPv6 is grouped into sets of 4 hex digits seperated by colons, like (from wikipedia):
2001:0db8:85a3:0000:0000:8a2e:0370:7334
You're safe storing it as a 39-character long string, should you wish to do that. There are other shorthand ways to write addresses as well though. Sets of zeros can be truncated to a single 0, or sets of zeroes can be hidden completely by a double colon.
The variable mean_data
is a nested list, in Python accessing a nested list cannot be done by multi-dimensional slicing, i.e.: mean_data[1,2]
, instead one would write mean_data[1][2]
.
This is becausemean_data[2]
is a list. Further indexing is done recursively - since mean_data[2]
is a list, mean_data[2][0]
is the first index of that list.
Additionally, mean_data[:][0]
does not work because mean_data[:]
returns mean_data
.
The solution is to replace the array ,or import the original data, as follows:
mean_data = np.array(mean_data)
numpy arrays (like MATLAB arrays and unlike nested lists) support multi-dimensional slicing with tuples.
(See update at end of answer.)
You can get a NodeList
of all of the input
elements via getElementsByTagName
(DOM specification, MDC, MSDN), then simply loop through it:
var inputs, index;
inputs = document.getElementsByTagName('input');
for (index = 0; index < inputs.length; ++index) {
// deal with inputs[index] element.
}
There I've used it on the document
, which will search the entire document. It also exists on individual elements (DOM specification), allowing you to search only their descendants rather than the whole document, e.g.:
var container, inputs, index;
// Get the container element
container = document.getElementById('container');
// Find its child `input` elements
inputs = container.getElementsByTagName('input');
for (index = 0; index < inputs.length; ++index) {
// deal with inputs[index] element.
}
...but you've said you don't want to use the parent form
, so the first example is more applicable to your question (the second is just there for completeness, in case someone else finding this answer needs to know).
Update: getElementsByTagName
is an absolutely fine way to do the above, but what if you want to do something slightly more complicated, like just finding all of the checkboxes instead of all of the input
elements?
That's where the useful querySelectorAll
comes in: It lets us get a list of elements that match any CSS selector we want. So for our checkboxes example:
var checkboxes = document.querySelectorAll("input[type=checkbox]");
You can also use it at the element level. For instance, if we have a div
element in our element
variable, we can find all of the span
s with the class foo
that are inside that div
like this:
var fooSpans = element.querySelectorAll("span.foo");
querySelectorAll
and its cousin querySelector
(which just finds the first matching element instead of giving you a list) are supported by all modern browsers, and also IE8.
One thing that is really important to understand considering you have an XML file as :
<customer id="100">
<Age>29</Age>
<NAME>mkyong</NAME>
</customer>
I am sorry to inform you but :
@XmlElement
public void setAge(int age) {
this.age = age;
}
will not help you, as it tries to look for "age" instead of "Age" element name from the XML.
I encourage you to manually specify the element name matching the one in the XML file :
@XmlElement(name="Age")
public void setAge(int age) {
this.age = age;
}
And if you have for example :
@XmlRootElement
@XmlAccessorType (XmlAccessType.FIELD)
public class Customer {
...
It means it will use java beans by default, and at this time if you specify that you must not set another
@XmlElement(name="NAME")
annotation above a setter method for an element <NAME>..</NAME>
it will fail saying that there cannot be two elements on one single variables.
I hope that it helps.
You can't have an hash map with multiple keys, but you can have an object that takes multiple parameters as the key.
Create an object called Index that takes an x and y value.
public class Index {
private int x;
private int y;
public Index(int x, int y) {
this.x = x;
this.y = y;
}
@Override
public int hashCode() {
return this.x ^ this.y;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Index other = (Index) obj;
if (x != other.x)
return false;
if (y != other.y)
return false;
return true;
}
}
Then have your HashMap<Index, Value>
to get your result. :)
Only two Semicolons are allowed to be used in for
loop.
If you have do initialization of multiple variables or manipulation of multiple variables, you can achieve it by separating them with comma(,).
for(int i=0, j=5; i < 5; i++, j--)
NOTE: Multiple conditions separated by comma are NOT allowed.
for(int i=0, j=5; i < 5, j > 5; i++, j--) // This is NOT allowed.
Not really answer to the question, but one-liners for foldl and foldr:
a = [8,3,4]
## Foldl
reduce(lambda x,y: x**y, a)
#68719476736
## Foldr
reduce(lambda x,y: y**x, a[::-1])
#14134776518227074636666380005943348126619871175004951664972849610340958208L
The simple solution is to just remap coordinates from the original to the final image, copying pixels from one coordinate space to the other, rounding off as necessary -- which may result in some pixels being copied several times adjacent to each other, and other pixels being skipped, depending on whether you're stretching or shrinking (or both) in either dimension. Make sure your copying iterates through the destination space, so all pixels are covered there even if they're painted more than once, rather than thru the source which may skip pixels in the output.
The better solution involves calculating the corresponding source coordinate without rounding, and then using its fractional position between pixels to compute an appropriate average of the (typically) four pixels surrounding that location. This is essentially a filtering operation, so you lose some resolution -- but the result looks a LOT better to the human eye; it does a much better job of retaining small details and avoids creating straight-line artifacts which humans find objectionable.
Note that the same basic approach can be used to remap flat images onto any other shape, including 3D surface mapping.
There are many great open source projects that make detection a lot easier. To name two:
As You're getting values from textfield as jTextField3.getText();
.
As it is a textField
it will return you string format as its format says:
String getText()
Returns the text contained in this TextComponent.
So, convert your String
to Integer
as:
int jml = Integer.parseInt(jTextField3.getText());
instead of directly setting
int jml = jTextField3.getText();
You can Change it from:
Menu Settings -> Style Configurator
See on screenshot:
Any point on the line segment (a, b) (where a and b are vectors) can be expressed as a linear combination of the two vectors a and b:
In other words, if c lies on the line segment (a, b):
c = ma + (1 - m)b, where 0 <= m <= 1
Solving for m, we get:
m = (c.x - b.x)/(a.x - b.x) = (c.y - b.y)/(a.y - b.y)
So, our test becomes (in Python):
def is_on(a, b, c):
"""Is c on the line segment ab?"""
def _is_zero( val ):
return -epsilon < val < epsilon
x1 = a.x - b.x
x2 = c.x - b.x
y1 = a.y - b.y
y2 = c.y - b.y
if _is_zero(x1) and _is_zero(y1):
# a and b are the same point:
# so check that c is the same as a and b
return _is_zero(x2) and _is_zero(y2)
if _is_zero(x1):
# a and b are on same vertical line
m2 = y2 * 1.0 / y1
return _is_zero(x2) and 0 <= m2 <= 1
elif _is_zero(y1):
# a and b are on same horizontal line
m1 = x2 * 1.0 / x1
return _is_zero(y2) and 0 <= m1 <= 1
else:
m1 = x2 * 1.0 / x1
if m1 < 0 or m1 > 1:
return False
m2 = y2 * 1.0 / y1
return _is_zero(m2 - m1)
Though I'm coming in late, what worked for me was to install transform-async-generator and transform-runtime plugin like so:
npm i babel-plugin-transform-async-to-generator babel-plugin-transform-runtime --save-dev
the package.json
would be like this:
"devDependencies": {
"babel-plugin-transform-async-to-generator": "6.24.1",
"babel-plugin-transform-runtime": "6.23.0"
}
create .babelrc
file and write this:
{
"plugins": ["transform-async-to-generator",
["transform-runtime", {
"polyfill": false,
"regenerator": true
}]
]
}
and then happy coding with async/await
<img id="_x005F i1026" src="images/img.jpg" width="120" height="150" />
_x000D_
This worked for me both in gmail and outlook.
My version:
json_encode(self::toArray($ob))
Implementation:
private static function toArray($object) {
$reflectionClass = new \ReflectionClass($object);
$properties = $reflectionClass->getProperties();
$array = [];
foreach ($properties as $property) {
$property->setAccessible(true);
$value = $property->getValue($object);
if (is_object($value)) {
$array[$property->getName()] = self::toArray($value);
} else {
$array[$property->getName()] = $value;
}
}
return $array;
}
JsonUtils : GitHub
You can use:
print (floatval)(number_format( $Value), 2 ) );
A #spacer
div must be placed between the header and main body, like this:
<header>
</header>
<div id="spacer"></div>
<main>
</main>
The header's position
will be fixed
, while the spacer will keep its default static
position:
header {position: fixed;}
Finally you need to make sure that both the header and spacer have the same size-related properties, like so:
header, #spacer {
height: 100px;
max-height: 35vh;
}
This works for me at least.
I'm late to the party, but hopefully this is a useful addition to the other answers here...
I need to know how I can determine what "too much work" my application may be doing as all my processing is done in AsyncTasks.
The following are all candidates:
Uri
's on ImageView
's all constitute IO on the main thread)View
hierarchiesView
hierarchyonDraw
methods in custom View
'sAsyncTask
's are "background" by default, java.lang.Thread
is not)To actually determine the specific cause you'll need to profile your app.
I've been trying to understand Choreographer by experimenting and looking at the code.
The documentation of Choreographer opens with "Coordinates the timing of animations, input and drawing." which is actually a good description, but the rest goes on to over-emphasize animations.
The Choreographer is actually responsible for executing 3 types of callbacks, which run in this order:
The aim is to match the rate at which invalidated views are re-drawn (and animations tweened) with the screen vsync - typically 60fps.
The warning about skipped frames looks like an afterthought: The message is logged if a single pass through the 3 steps takes more than 30x the expected frame duration, so the smallest number you can expect to see in the log messages is "skipped 30 frames"; If each pass takes 50% longer than it should you will still skip 30 frames (naughty!) but you won't be warned about it.
From the 3 steps involved its clear that it isn't only animations that can trigger the warning: Invalidating a significant portion of a large View
hierarchy or a View
with a complicated onDraw method might be enough.
For example this will trigger the warning repeatedly:
public class AnnoyTheChoreographerActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.simple_linear_layout);
ViewGroup root = (ViewGroup) findViewById(R.id.root);
root.addView(new TextView(this){
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
long sleep = (long)(Math.random() * 1000L);
setText("" + sleep);
try {
Thread.sleep(sleep);
} catch (Exception exc) {}
}
});
}
}
... which produces logging like this:
11-06 09:35:15.865 13721-13721/example I/Choreographer? Skipped 42 frames! The application may be doing too much work on its main thread.
11-06 09:35:17.395 13721-13721/example I/Choreographer? Skipped 59 frames! The application may be doing too much work on its main thread.
11-06 09:35:18.030 13721-13721/example I/Choreographer? Skipped 37 frames! The application may be doing too much work on its main thread.
You can see from the stack during onDraw
that the choreographer is involved regardless of whether you are animating:
at example.AnnoyTheChoreographerActivity$1.onDraw(AnnoyTheChoreographerActivity.java:25) at android.view.View.draw(View.java:13759)
... quite a bit of repetition ...
at android.view.ViewGroup.drawChild(ViewGroup.java:3169) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3039) at android.view.View.draw(View.java:13762) at android.widget.FrameLayout.draw(FrameLayout.java:467) at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2396) at android.view.View.getDisplayList(View.java:12710) at android.view.View.getDisplayList(View.java:12754) at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:1144) at android.view.ViewRootImpl.draw(ViewRootImpl.java:2273) at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2145) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1956) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1112) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4472) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) at android.view.Choreographer.doCallbacks(Choreographer.java:555) at android.view.Choreographer.doFrame(Choreographer.java:525) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4898)
Finally, if there is contention from other threads that reduce the amount of work the main thread can get done, the chance of skipping frames increases dramatically even though you aren't actually doing the work on the main thread.
In this situation it might be considered misleading to suggest that the app is doing too much on the main thread, but Android really wants worker threads to run at low priority so that they are prevented from starving the main thread. If your worker threads are low priority the only way to trigger the Choreographer warning really is to do too much on the main thread.
From Android Studio , start Android Device Monitor, go to File Explorer, and browse "/data/data/< name of your package >/shared_prefs/". You will find the XML there... and also you can copy it for inspection.
If you have a non-rooted device it's not possible to do that directly from Android Studio. However, you can access the file with adb shell
as long as your application is the debug version.
adb shell
run-as your.app.id
chmod 777 shared_prefs/your.app.id_preferences.xml
exit # return to default user
cp /data/data/your.app.id/shared_prefs/your.app.id_preferences.xml /sdcard
After that you can pull the file from /sdcard directory with adb.
Getting the address of an arbitrary object in .NET is not possible, but can be done if you change the source code and use mono. See instructions here: Get Memory Address of .NET Object (C#)
Here is a function to calculate the original size of an encoded Base 64 file as a String in KB:
private Double calcBase64SizeInKBytes(String base64String) {
Double result = -1.0;
if(StringUtils.isNotEmpty(base64String)) {
Integer padding = 0;
if(base64String.endsWith("==")) {
padding = 2;
}
else {
if (base64String.endsWith("=")) padding = 1;
}
result = (Math.ceil(base64String.length() / 4) * 3 ) - padding;
}
return result / 1000;
}
See the Wikipedia page on ANSI escapes for the full collection of sequences, including the colors.
But for one simple example (Printing in red) in Java (as you tagged this as Java) do:
System.out.println("\u001B31;1mhello world!");
The 3 indicates change color, the first 1 indicates red (green would be 2) and the second 1 indicates do it in "bright" mode.
However, if you want to print to a GUI the easiest way is to use html:
JEditorPane pane = new new JEditorPane();
pane.setText("<html><font color=\"red\">hello world!</font></html>");
For more details on this sort of thing, see the Swing Tutorial. It is also possible by using styles in a JTextPane. Here is a helpful example of code to do this easily with a JTextPane (added from helpful comment).
JTextArea is a single coloured Text component, as described here. It can only display in one color. You can set the color for the whole JTextArea like this:
JTextArea area = new JTextArea("hello world");
area.setForeground(Color.red)
As of Jquery 3.0 and above .bind has been deprecated and they prefer using .on instead. As @Blazemonger answered earlier that it may be removed and its for sure that it will be removed. For the older versions .bind would also call .on internally and there is no difference between them. Please also see the api for more detail.
SELECT * FROM INFORMATION_SCHEMA.COLUMNS
PostgreSQL understands the
select column_name from information_schema.columns where table_name = 'myTable'
syntax. If you're working in the psql shell, you can also use
\d myTable
for a description (columns, and their datatypes and constraints)
Try chmod u+x foo.sh
instead of chmod +x foo.sh
if you have trouble with the guides above. This worked for me when the other solutions did not.
You can rename the table in question, create a table with an identical schema, and then drop the original table at your leisure.
See the MySQL 5.1 Reference Manual for the [RENAME TABLE
][1] and [CREATE TABLE
][2] commands.
RENAME TABLE tbl TO tbl_old;
CREATE TABLE tbl LIKE tbl_old;
DROP TABLE tbl_old; -- at your leisure
This approach can help minimize application downtime.
As of Laravel >= 5.3, best way is to use value:
$groupName = \App\User::where('username',$username)->value('groupName');
or
use App\User;//at top of controller
$groupName = User::where('username',$username)->value('groupName');//inside controller function
Of course you have to create a model User for users table which is most efficient way to interact with database tables in Laravel.
In VB:
from m in MyTable
take 10
select m.Foo
This assumes that MyTable implements IQueryable. You may have to access that through a DataContext or some other provider.
It also assumes that Foo is a column in MyTable that gets mapped to a property name.
See http://blogs.msdn.com/vbteam/archive/2008/01/08/converting-sql-to-linq-part-7-union-top-subqueries-bill-horst.aspx for more detail.
POSTMAN : A google chrome extension
Use postman to send message instead of server. Postman settings are as follows :
Request Type: POST
URL: https://android.googleapis.com/gcm/send
Header
Authorization : key=your key //Google API KEY
Content-Type : application/json
JSON (raw) :
{
"registration_ids":["yours"],
"data": {
"Hello" : "World"
}
}
on success you will get
Response :
{
"multicast_id": 6506103988515583000,
"success": 1,
"failure": 0,
"canonical_ids": 0,
"results": [
{
"message_id": "0:1432811719975865%54f79db3f9fd7ecd"
}
]
}
EF is looking for a table named dbo.BaseCs. Might be an entity name pluralizing issue. Check out this link.
EDIT: Updated link.
It has a -force
parameter.????
After some searching, I was able to find the information_schema.routines
table and the information_schema.parameters
tables. Using those, one can construct a query for this purpose. LEFT JOIN, instead of JOIN, is necessary to retrieve functions without parameters.
SELECT routines.routine_name, parameters.data_type, parameters.ordinal_position
FROM information_schema.routines
LEFT JOIN information_schema.parameters ON routines.specific_name=parameters.specific_name
WHERE routines.specific_schema='my_specified_schema_name'
ORDER BY routines.routine_name, parameters.ordinal_position;
You may add a div with position:absolute
within a table/div with position:relative
. For example, if you want your overlay div to be shown at the bottom right of the main text div (width and height can be removed):
<div style="position:relative;width:300px;height:300px;background-color:#eef">
<div style="position:absolute;bottom:0;right:0;width:100px;height:100px;background-color:#fee">
I'm over you!
</div>
Your main text
</div>
See it here: http://jsfiddle.net/bptvt5kb/
You can reset the root password by running the server with --skip-grant-tables
and logging in without a password by running the following as root (or with sudo):
# service mysql stop
# mysqld_safe --skip-grant-tables &
$ mysql -u root
mysql> use mysql;
mysql> update user set authentication_string=PASSWORD("YOUR-NEW-ROOT-PASSWORD") where User='root';
mysql> flush privileges;
mysql> quit
# service mysql stop
# service mysql start
$ mysql -u root -p
Now you should be able to login as root with your new password.
It is also possible to find the query that reset the password in /home/$USER/.mysql_history
or /root/.mysql_history
of the user who reset the password, but the above will always work.
Note: prior to MySQL 5.7 the column was called password
instead of authentication_string
. Replace the line above with
mysql> update user set password=PASSWORD("YOUR-NEW-ROOT-PASSWORD") where User='root';
volatile variable value access will be direct from main memory. It should be used only in multi-threading environment. static variable will be loaded one time. If its used in single thread environment, even if the copy of the variable will be updated and there will be no harm accessing it as there is only one thread.
Now if static variable is used in multi-threading environment then there will be issues if one expects desired result from it. As each thread has their own copy then any increment or decrement on static variable from one thread may not reflect in another thread.
if one expects desired results from static variable then use volatile with static in multi-threading then everything will be resolved.
All,
From what I'm seeing here all answers are wrong, especially if you entered the sudo mode, with all returning 'root' instead of the logged in user. The answer is in using 'who' and finding eh 'tty1' user and extracting that. Thw "w" command works the same and var=$SUDO_USER gets the real logged in user.
Cheers!
TBNK
You need to change project settings. Right click your project, go to properites. In Application tab change output type to class library instead of Windows application.
Any Activity that restarts has its onResume() method executed first.
To use this method, do this:
@Override
public void onResume(){
super.onResume();
// put your code here...
}
I have discovered that you cannot have conditionals outside of the stored procedure in mysql. This is why the syntax error. As soon as I put the code that I needed between
BEGIN
SELECT MONTH(CURDATE()) INTO @curmonth;
SELECT MONTHNAME(CURDATE()) INTO @curmonthname;
SELECT DAY(LAST_DAY(CURDATE())) INTO @totaldays;
SELECT FIRST_DAY(CURDATE()) INTO @checkweekday;
SELECT DAY(@checkweekday) INTO @checkday;
SET @daycount = 0;
SET @workdays = 0;
WHILE(@daycount < @totaldays) DO
IF (WEEKDAY(@checkweekday) < 5) THEN
SET @workdays = @workdays+1;
END IF;
SET @daycount = @daycount+1;
SELECT ADDDATE(@checkweekday, INTERVAL 1 DAY) INTO @checkweekday;
END WHILE;
END
Just for others:
If you are not sure how to create a routine in phpmyadmin you can put this in the SQL query
delimiter ;;
drop procedure if exists test2;;
create procedure test2()
begin
select ‘Hello World’;
end
;;
Run the query. This will create a stored procedure or stored routine named test2. Now go to the routines tab and edit the stored procedure to be what you want. I also suggest reading http://net.tutsplus.com/tutorials/an-introduction-to-stored-procedures/ if you are beginning with stored procedures.
The first_day function you need is: How to get first day of every corresponding month in mysql?
Showing the Procedure is working Simply add the following line below END WHILE and above END
SELECT @curmonth,@curmonthname,@totaldays,@daycount,@workdays,@checkweekday,@checkday;
Then use the following code in the SQL Query Window.
call test2 /* or whatever you changed the name of the stored procedure to */
NOTE: If you use this please keep in mind that this code does not take in to account nationally observed holidays (or any holidays for that matter).
In 1.0, the functionality was bound to (
and tab
and shift-tab
, in 2.0 tab
was deprecated but still functional in some unambiguous cases completing or inspecting were competing in many cases. Recommendation was to always use shift-Tab
. (
was also added as deprecated as confusing in Haskell-like syntax to also push people toward Shift-Tab as it works in more cases. in 3.0 the deprecated bindings have been remove in favor of the official, present for 18+ month now Shift-Tab
.
So press Shift-Tab
.
Here's a sample method that adds two extra columns programmatically to the grid view:
private void AddColumnsProgrammatically()
{
// I created these columns at function scope but if you want to access
// easily from other parts of your class, just move them to class scope.
// E.g. Declare them outside of the function...
var col3 = new DataGridViewTextBoxColumn();
var col4 = new DataGridViewCheckBoxColumn();
col3.HeaderText = "Column3";
col3.Name = "Column3";
col4.HeaderText = "Column4";
col4.Name = "Column4";
dataGridView1.Columns.AddRange(new DataGridViewColumn[] {col3,col4});
}
A great way to figure out how to do this kind of process is to create a form, add a grid view control and add some columns. (This process will actually work for ANY kind of form control. All instantiation and initialization happens in the Designer.) Then examine the form's Designer.cs file to see how the construction takes place. (Visual Studio does everything programmatically but hides it in the Form Designer.)
For this example I created two columns for the view named Column1 and Column2 and then searched Form1.Designer.cs for Column1 to see everywhere it was referenced. The following information is what I gleaned and, copied and modified to create two more columns dynamically:
// Note that this info scattered throughout the designer but can easily collected.
System.Windows.Forms.DataGridViewTextBoxColumn Column1;
System.Windows.Forms.DataGridViewCheckBoxColumn Column2;
this.Column1 = new System.Windows.Forms.DataGridViewTextBoxColumn();
this.Column2 = new System.Windows.Forms.DataGridViewCheckBoxColumn();
this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
this.Column1,
this.Column2});
this.Column1.HeaderText = "Column1";
this.Column1.Name = "Column1";
this.Column2.HeaderText = "Column2";
this.Column2.Name = "Column2";
This is working code.
function validateSignup()
{
$.validator.addMethod(
"regex",
function(value, element, regexp)
{
if (regexp.constructor != RegExp)
regexp = new RegExp(regexp);
else if (regexp.global)
regexp.lastIndex = 0;
return this.optional(element) || regexp.test(value);
},
"Please check your input."
);
$('#signupForm').validate(
{
onkeyup : false,
errorClass: "req_mess",
ignore: ":hidden",
validClass: "signup_valid_class",
errorClass: "signup_error_class",
rules:
{
email:
{
required: true,
email: true,
regex: /^[A-Za-z0-9_]+\@[A-Za-z0-9_]+\.[A-Za-z0-9_]+/,
},
userId:
{
required: true,
minlength: 6,
maxlength: 15,
regex: /^[A-Za-z0-9_]{6,15}$/,
},
phoneNum:
{
required: true,
regex: /^[+-]{1}[0-9]{1,3}\-[0-9]{10}$/,
},
},
messages:
{
email:
{
required: 'You must enter a email',
regex: 'Please enter a valid email without spacial chars, ie, [email protected]'
},
userId:
{
required: 'Alphanumeric, _, min:6, max:15',
regex: "Please enter any alphaNumeric char of length between 6-15, ie, sbp_arun_2016"
},
phoneNum:
{
required: "Please enter your phone number",
regex: "e.g. +91-1234567890"
},
},
submitHandler: function (form)
{
return true;
}
});
}
Do no write a function() to include files in a directory. You may lose the variable scopes, and may have to use "global". Just loop on the files.
Also, you may run into difficulties when an included file has a class name that will extend to the other class defined in the other file - which is not yet included. So, be careful.
This kind of error usually means that some parts of (JS) code were not loaded. That the state which is inside of ui-sref
is missing.
There is a working example
I am not an expert in ionic, so this example should show that it would be working, but I used some more tricks (parent for tabs)
This is a bit adjusted state def:
.config(function($stateProvider, $urlRouterProvider){
$urlRouterProvider.otherwise("/index.html");
$stateProvider
.state('app', {
abstract: true,
templateUrl: "tpl.menu.html",
})
$stateProvider.state('index', {
url: '/',
templateUrl: "tpl.index.html",
parent: "app",
});
$stateProvider.state('register', {
url: "/register",
templateUrl: "tpl.register.html",
parent: "app",
});
$urlRouterProvider.otherwise('/');
})
And here we have the parent view with tabs, and their content:
<ion-tabs class="tabs-icon-top">
<ion-tab title="Index" icon="icon ion-home" ui-sref="index">
<ion-nav-view name=""></ion-nav-view>
</ion-tab>
<ion-tab title="Register" icon="icon ion-person" ui-sref="register">
<ion-nav-view name=""></ion-nav-view>
</ion-tab>
</ion-tabs>
Take it more than an example of how to make it running and later use ionic framework the right way...Check that example here
Here is similar Q & A with an example using the named views (for sure better solution) ionic routing issue, shows blank page
Improved version with named views in a tab is here: http://plnkr.co/edit/Mj0rUxjLOXhHIelt249K?p=preview
<ion-tab title="Index" icon="icon ion-home" ui-sref="index">
<ion-nav-view name="index"></ion-nav-view>
</ion-tab>
<ion-tab title="Register" icon="icon ion-person" ui-sref="register">
<ion-nav-view name="register"></ion-nav-view>
</ion-tab>
targeting named views:
$stateProvider.state('index', {
url: '/',
views: { "index" : { templateUrl: "tpl.index.html" } },
parent: "app",
});
$stateProvider.state('register', {
url: "/register",
views: { "register" : { templateUrl: "tpl.register.html", } },
parent: "app",
});
It is returning the array, but all returning something (including an Array) does is just what it sounds like: returns the value. In your case, you are getting the value of numbers()
, which happens to be an array (it could be anything and you would still have this issue), and just letting it sit there.
When a function returns anything, it is essentially replacing the line in which it is called (in your case: numbers();
) with the return value. So, what your main
method is really executing is essentially the following:
public static void main(String[] args) {
{1,2,3};
}
Which, of course, will appear to do nothing. If you wanted to do something with the return value, you could do something like this:
public static void main(String[] args){
int[] result = numbers();
for (int i=0; i<result.length; i++) {
System.out.print(result[i]+" ");
}
}
if it is a Spring boot App.
Spring Boot automatically detects index.html in public/static/webapp folder. If you have written any controller @Requestmapping("/")
it will override the default feature and it will not show the index.html
unless you type localhost:8080/index.html
That works very well for me, even for changing the occurrences, in all the modules concerned, for the folders names I want to modify in the package but, for me, it works fine only if I follow exactly the following steps :
Wrap your all statements in !IsPostBack
condition on page load.
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
// all statements
}
}
This will fix your issue.
alter table table_name change old_col_name new_col_name new_col_type;
Here is the example
hive> alter table test change userVisit userVisit2 STRING;
OK
Time taken: 0.26 seconds
hive> describe test;
OK
uservisit2 string
category string
uuid string
Time taken: 0.213 seconds, Fetched: 3 row(s)
You can annotate your bean with jaxb annotations.
@XmlRootElement
public class MyJaxbBean {
public String name;
public int age;
public MyJaxbBean() {} // JAXB needs this
public MyJaxbBean(String name, int age) {
this.name = name;
this.age = age;
}
}
and then your method would look like this:
@GET @Produces("application/json")
public MyJaxbBean getMyBean() {
return new MyJaxbBean("Agamemnon", 32);
}
There is a chapter in the latest documentation that deals with this:
https://jersey.java.net/documentation/latest/user-guide.html#json
Probably a more appropriate way of changing outline color is using the outline-color
CSS rule.
textarea {
outline-color: #719ECE;
}
or for input
input {
outline-color: #719ECE;
}
box-shadow
isn't quite the same thing and it may look different than the outline, especially if you apply custom styling to your element.
I had this problem, and turns out the problem was that I had used
new SimpleJdbcCall(jdbcTemplate)
.withProcedureName("foo")
instead of
new SimpleJdbcCall(jdbcTemplate)
.withFunctionName("foo")
You can Pass Arraylist/Pojo using bundle like this ,
Intent intent = new Intent(MainActivity.this, SecondActivity.class);
Bundle args = new Bundle();
args.putSerializable("imageSliders",(Serializable)allStoriesPojo.getImageSliderPojos());
intent.putExtra("BUNDLE",args);
startActivity(intent);
Get those values in SecondActivity like this
Intent intent = getIntent();
Bundle args = intent.getBundleExtra("BUNDLE");
String filter = bundle.getString("imageSliders");
it's useful to create a new file by mkdir filename
,then running the command of git clone xxxxx
,it does work in my computer
Older versions of JSP did not support the second syntax.
I had the exact same issue, after rightly have configured in Mac OSX host a SharedFolder with Auto-Mount enabled. On the Guest OS, it is also required to install VirtualBox Guest Additions. For the case of Windows, it is:
VBoxWindowsAdditions.exe
Right after this installation, i could perfectly view the shared folder content under This PC and Network ("\VBOXSVR\Installers").
Since there are several answers here showing non-working code for Windows, here is a clarification:
Runtime.getRuntime().exec("cls");
This command does not work, for two reasons:
There is no executable named cls.exe
or cls.com
in a standard Windows installation that could be invoked via Runtime.exec
, as the well-known command cls
is builtin to Windows’ command line interpreter.
When launching a new process via Runtime.exec
, the standard output gets redirected to a pipe which the initiating Java process can read. But when the output of the cls
command gets redirected, it doesn’t clear the console.
To solve this problem, we have to invoke the command line interpreter (cmd
) and tell it to execute a command (/c cls
) which allows invoking builtin commands. Further we have to directly connect its output channel to the Java process’ output channel, which works starting with Java 7, using inheritIO()
:
import java.io.IOException;
public class CLS {
public static void main(String... arg) throws IOException, InterruptedException {
new ProcessBuilder("cmd", "/c", "cls").inheritIO().start().waitFor();
}
}
Now when the Java process is connected to a console, i.e. has been started from a command line without output redirection, it will clear the console.
i am using this method.
add a from that you want to pop up, add all controls you need. in the code you can handle the user input and return result to the caller. for pop up the form just create a new instance of the form and show method.
/* create new form instance. i am overriding constructor to allow the caller form to set the form header */
var t = new TextPrompt("Insert your message and click Send button");
// pop up the form
t.Show();
if (t.DialogResult == System.Windows.Forms.DialogResult.OK)
{
MessageBox.Show("RTP", "Message sent to user");
}
Based on the excellent answer of @Federico A. Ramponi.
Just imagine you have this hierarchy:
public interface IAnimal
{
void DoSound();
}
public class Dog : IAnimal
{
public void DoSound()
{
Console.WriteLine("Woof");
}
}
public class Cat : IAnimal
{
public void DoSound(IOperation o)
{
Console.WriteLine("Meaw");
}
}
What happen if you need to add a "Walk" method here? That will be painful to the whole design.
At the same time, adding the "Walk" method generate new questions. What about "Eat" or "Sleep"? Must we really add a new method to the Animal hierarchy for every new action or operation that we want to add? That's ugly and most important, we will never be able to close the Animal interface. So, with the visitor pattern, we can add new method to the hierarchy without modifying the hierarchy!
So, just check and run this C# example:
using System;
using System.Collections.Generic;
namespace VisitorPattern
{
class Program
{
static void Main(string[] args)
{
var animals = new List<IAnimal>
{
new Cat(), new Cat(), new Dog(), new Cat(),
new Dog(), new Dog(), new Cat(), new Dog()
};
foreach (var animal in animals)
{
animal.DoOperation(new Walk());
animal.DoOperation(new Sound());
}
Console.ReadLine();
}
}
public interface IOperation
{
void PerformOperation(Dog dog);
void PerformOperation(Cat cat);
}
public class Walk : IOperation
{
public void PerformOperation(Dog dog)
{
Console.WriteLine("Dog walking");
}
public void PerformOperation(Cat cat)
{
Console.WriteLine("Cat Walking");
}
}
public class Sound : IOperation
{
public void PerformOperation(Dog dog)
{
Console.WriteLine("Woof");
}
public void PerformOperation(Cat cat)
{
Console.WriteLine("Meaw");
}
}
public interface IAnimal
{
void DoOperation(IOperation o);
}
public class Dog : IAnimal
{
public void DoOperation(IOperation o)
{
o.PerformOperation(this);
}
}
public class Cat : IAnimal
{
public void DoOperation(IOperation o)
{
o.PerformOperation(this);
}
}
}
In web application a timer will be the best approach.
Just fyi, in desktop application I use this instead, inside an async method.
...
Await Task.Run(Sub()
System.Threading.Thread.Sleep(5000)
End Sub)
...
It work for me, importantly it doesn't freeze entire screen. But again this is on desktop, i try in web application it does freeze.
Here's a quick sample:
//Create process
System.Diagnostics.Process pProcess = new System.Diagnostics.Process();
//strCommand is path and file name of command to run
pProcess.StartInfo.FileName = strCommand;
//strCommandParameters are parameters to pass to program
pProcess.StartInfo.Arguments = strCommandParameters;
pProcess.StartInfo.UseShellExecute = false;
//Set output of program to be written to process output stream
pProcess.StartInfo.RedirectStandardOutput = true;
//Optional
pProcess.StartInfo.WorkingDirectory = strWorkingDirectory;
//Start the process
pProcess.Start();
//Get program output
string strOutput = pProcess.StandardOutput.ReadToEnd();
//Wait for process to finish
pProcess.WaitForExit();