If you can change this line:
host all all 192.168.0.1/32 md5
With this:
host all all all md5
You can see if this solves the problem.
But another consideration is your postgresql port(5432) is very open to password attacks with hackers (maybe they can brute force the password). You can change your postgresql port 5432 to '33333' or another value, so they can't know this configuration.
A call to your parent class's empty constructor super()
is done automatically when you don't do it yourself. That's the reason you've never had to do it in your code. It was done for you.
When your superclass doesn't have a no-arg constructor, the compiler will require you to call super
with the appropriate arguments. The compiler will make sure that you instantiate the class correctly. So this is not something you have to worry about too much.
Whether you call super()
in your constructor or not, it doesn't affect your ability to call the methods of your parent class.
As a side note, some say that it's generally best to make that call manually for reasons of clarity.
I have reformatted your slow sql query with www.prettysql.net
SELECT *
FROM some_table
WHERE
relevant_field in
(
SELECT relevant_field
FROM some_table
GROUP BY relevant_field
HAVING COUNT ( * ) > 1
);
When using a table in both the query and the subquery, you should always alias both, like this:
SELECT *
FROM some_table as t1
WHERE
t1.relevant_field in
(
SELECT t2.relevant_field
FROM some_table as t2
GROUP BY t2.relevant_field
HAVING COUNT ( t2.relevant_field ) > 1
);
Does that help?
This helped me: I created a new maven project which was working fine in my old workspace, but gave above errors in the new workspace. I had to do the following: - Open old workspace on Eclipse - open Preferences tab - Search Maven in filter - Copy the path for settings.xml from User Settings - User Settings - Switch to new workspace - Update the preferences - Maven - User Settings - User Settings path
After the build is completed, all errors are resolved.
If you need extract the text without the brackets, you can use bash awk
echo " [hola mundo] " | awk -F'[][]' '{print $2}'
result:
hola mundo
<select ng-model="divs" ng-options="(d.group+' - '+d.sub) for d in divisions | orderBy:['group','sub']" />
User array instead of multiple orderBY
If you turn-on 2-Step Verification, you need generate a special app password instead of using your common password. https://myaccount.google.com/security#signin
For those using Yarn as their package manager instead of npm:
yarn global add babel-cli
Please note this doesn't solve the cookie sharing process, as in general this is bad practice.
You need to be using JSONP as your type:
From $.ajax documentation: Cross-domain requests and dataType: "jsonp" requests do not support synchronous operation.
$.ajax(
{
type: "POST",
url: "http://example.com/api/getlist.json",
dataType: 'jsonp',
xhrFields: {
withCredentials: true
},
crossDomain: true,
beforeSend: function(xhr) {
xhr.setRequestHeader("Cookie", "session=xxxyyyzzz");
},
success: function(){
alert('success');
},
error: function (xhr) {
alert(xhr.responseText);
}
}
);
The standard way is to use atexit.register
:
# package.py
import atexit
import os
class Package:
def __init__(self):
self.files = []
atexit.register(self.cleanup)
def cleanup(self):
print("Running cleanup...")
for file in self.files:
print("Unlinking file: {}".format(file))
# os.unlink(file)
But you should keep in mind that this will persist all created instances of Package
until Python is terminated.
Demo using the code above saved as package.py:
$ python
>>> from package import *
>>> p = Package()
>>> q = Package()
>>> q.files = ['a', 'b', 'c']
>>> quit()
Running cleanup...
Unlinking file: a
Unlinking file: b
Unlinking file: c
Running cleanup...
Which Boost library? Many of them are pure templates and do not require linking.
Now with that actually shown concrete example which tells us that you want Boost program options (and even more told us that you are on Ubuntu), you need to do two things:
libboost-program-options-dev
so that you can link against it.cmake
to link against libboost_program_options
.I mostly use Makefiles so here is the direct command-line use:
$ g++ boost_program_options_ex1.cpp -o bpo_ex1 -lboost_program_options
$ ./bpo_ex1
$ ./bpo_ex1 -h
$ ./bpo_ex1 --help
$ ./bpo_ex1 -help
$
It doesn't do a lot it seems.
For CMake, you need to add boost_program_options to the list of libraries, and IIRC this is done via SET(liblist boost_program_options)
in your CMakeLists.txt
.
Into the Preferences > Setting - Default
You will have the next by default:
// Display file encoding in the status bar
"show_encoding": false
You could change it or like cdesmetz said set your user settings.
Apart from above correct answer, also make sure that you have set correct Main Interface in General.
What do you mean by an "anonymous object?" myObj
is not anonymous since you've assigned an object literal to a variable. You can just test this:
if (typeof myObj.prop2 === 'function')
{
// do whatever
}
The mysql_upgrade worked for me as well:
# mysql_upgrade -u root -p --force
# systemctl restart mysqld
Regards, MSz.
I recently found out that :active:focus
does the same thing in css as :active:hover
if you need to override a custom css library, they might use both.
You've got a couple of issues here.
Firstly, you're defining your code within an anonymous function. This construct:
(function() {
...
)();
does two things. It defines an anonymous function and calls it. There are scope reasons to do this but I'm not sure it's what you actually want.
You're passing in a code block to setTimeout()
. The problem is that update()
is not within scope when executed like that. It however if you pass in a function pointer instead so this works:
(function() {
$(document).ready(function() {update();});
function update() {
$("#board").append(".");
setTimeout(update, 1000); }
}
)();
because the function pointer update
is within scope of that block.
But like I said, there is no need for the anonymous function so you can rewrite it like this:
$(document).ready(function() {update();});
function update() {
$("#board").append(".");
setTimeout(update, 1000); }
}
or
$(document).ready(function() {update();});
function update() {
$("#board").append(".");
setTimeout('update()', 1000); }
}
and both of these work. The second works because the update()
within the code block is within scope now.
I also prefer the $(function() { ... }
shortened block form and rather than calling setTimeout()
within update()
you can just use setInterval()
instead:
$(function() {
setInterval(update, 1000);
});
function update() {
$("#board").append(".");
}
Hope that clears that up.
Here an alternative using SUBSTRING
SELECT
SUBSTRING([Field], LEN([Field]) - 2, 3) [Right3],
SUBSTRING([Field], 0, LEN([Field]) - 2) [TheRest]
FROM
[Fields]
When using the object oriented API, the Axes
object has two useful methods for removing the axis text, set_xticklabels()
and set_xticks()
.
Say you create a plot using
fig, ax = plt.subplots(1)
ax.plot(x, y)
If you simply want to remove the tick labels, you could use
ax.set_xticklabels([])
or to remove the ticks completely, you could use
ax.set_xticks([])
These methods are useful for specifying exactly where you want the ticks and how you want them labeled. Passing an empty list results in no ticks, or no labels, respectively.
In addition to Guffa's answer, you could use this variant to have a more shorthanded notation.
public static bool ScrambledEquals<T>(this IEnumerable<T> list1, IEnumerable<T> list2)
{
var deletedItems = list1.Except(list2).Any();
var newItems = list2.Except(list1).Any();
return !newItems && !deletedItems;
}
list4 = list1.Concat(list2).Concat(list3).ToList();
In my Startup.cs (Core 2.2, Automapper 8.1.1)
services.AddAutoMapper(new Type[] { typeof(DAL.MapperProfile) });
In my data access project
namespace DAL
{
public class MapperProfile : Profile
{
// place holder for AddAutoMapper (to bring in the DAL assembly)
}
}
In my model definition
namespace DAL.Models
{
public class PositionProfile : Profile
{
public PositionProfile()
{
CreateMap<Position, PositionDto_v1>();
}
}
public class Position
{
...
}
If you wish to use es6 arrow functions you can add a .timeout(ms)
to the end of your it
definition:
it('should not timeout', (done) => {
doLongThing().then(() => {
done();
});
}).timeout(5000);
At least this works in Typescript.
Flurry analytics gives you crash info, hardware model, android version and live app usage stats. In the new SDK they seem to provide more detailed crash info http://www.flurry.com/flurry-crash-analytics.html.
Following many hours of search and testing i found following solution(by implementing different SO solutions) here it what didn't failed in any case i was getting crash.
Runnable runnable = new Runnable() {
@Override
public void run() {
//displayPopup,progress dialog or what ever action. example
ProgressDialogBox.setProgressBar(Constants.LOADING,youractivityName.this);
}};
Where logcat is indicating the crash is happening.. start a runnable .in my case at receiving broadcast.
runOnUiThread(new Runnable() {
@Override
public void run() {
if(!isFinishing()) {
new Handler().postAtTime(runnable,2000);
}
}
});
PHP is likely the easiest.
Just make a file script.php
that contains <?php shell_exec("yourscript.sh"); ?>
and send anybody who clicks the button to that destination. You can return the user to the original page with header:
<?php
shell_exec("yourscript.sh");
header('Location: http://www.website.com/page?success=true');
?>
// store the startTime prop in local state
const [startTime, setStartTime] = useState(props.startTime)
//
useEffect(() => {
if (props.startTime !== startTime) {
setStartTime(props.startTime);
}
}, [props.startTime]);
Can this method be migrated to class components?
A lot of people, including me, use sqlfiddle.com to test SQL.
It's recommended to try any or all of the following:
Restart Visual Studio
Try Running As Administrator (right-click Visual Studio and choose "Run As Administrator")
Check for any updates for Visual Studio (download and install them if any are available)
Try opening a different solution / project
If problems persist, you might try the following options:
Restart your local machine
Attempt to reset Visual Studio to System Defaults (this can be done from the options within Visual Studio)
Attempt to repair your Visual Studio installation
You can use the command:
grep --color='auto' -P -n "[\x80-\xFF]" file.xml
This will give you the line number, and will highlight non-ascii chars in red.
In some systems, depending on your settings, the above will not work, so you can grep by the inverse
grep --color='auto' -P -n "[^\x00-\x7F]" file.xml
Note also, that the important bit is the -P
flag which equates to --perl-regexp
: so it will interpret your pattern as a Perl regular expression. It also says that
this is highly experimental and grep -P may warn of unimplemented features.
URLEncoding can encode HTTP URLs just fine, as you've unfortunately discovered. The string you passed in, "http://search.barnesandnoble.com/booksearch/first book.pdf", was correctly and completely encoded into a URL-encoded form. You could pass that entire long string of gobbledigook that you got back as a parameter in a URL, and it could be decoded back into exactly the string you passed in.
It sounds like you want to do something a little different than passing the entire URL as a parameter. From what I gather, you're trying to create a search URL that looks like "http://search.barnesandnoble.com/booksearch/whateverTheUserPassesIn". The only thing that you need to encode is the "whateverTheUserPassesIn" bit, so perhaps all you need to do is something like this:
String url = "http://search.barnesandnoble.com/booksearch/" +
URLEncoder.encode(userInput,"UTF-8");
That should produce something rather more valid for you.
Keeping it simple is the key.
Try Below.
var values = new int[5,7,3];
values = values.OrderBy(p => p).ToList();
Add the servlet-api.jar
to your classpath. You can take it from tomcat's lib folder.
**
: exponentiation^
: exclusive-or (bitwise)%
: modulus//
: divide with integral result (discard remainder)All HIVE
managed tables are stored in the below HDFS
location.
hadoop fs -ls /user/hive/warehouse/databasename.db/tablename
if(condition){
// do something
return false;
}
I'll offer an oddball alternative. Sometimes it's easier to use different encoding, especially if you're dealing with a variety of systems that don't all handle the details of URL encoding the same way. This isn't the most mainstream approach but can come in handy in certain situations.
Rather than URL-encoding the data, you can base64-encode it. The benefit of this is the encoded data is very generic, consisting only of alpha characters and sometimes trailing =
's. Example:
JSON array-of-strings:
["option", "Fred's dog", "Bill & Trudy", "param=3"]
That data, URL-encoded as the data
param:
"data=%5B%27option%27%2C+%22Fred%27s+dog%22%2C+%27Bill+%26+Trudy%27%2C+%27param%3D3%27%5D"
Same, base64-encoded:
"data=WyJvcHRpb24iLCAiRnJlZCdzIGRvZyIsICJCaWxsICYgVHJ1ZHkiLCAicGFyYW09MyJd"
The base64 approach can be a bit shorter, but more importantly it's simpler. I often have problems moving URL-encoded data between cURL, web browsers and other clients, usually due to quotes, embedded %
signs and so on. Base64 is very neutral because it doesn't use special characters.
The mistake I was doing was passing null
(unknowingly) into JSON.parse().
So it threw Unexpected token n in JSON at position 0
This one did it for me:
var input = $("<input>")
.attr("type", "hidden")
.attr("name", "mydata").val("bla");
$('#form1').append(input);
is based on the Daff's answer, but added the NAME attribute to let it show in the form collection and changed VALUE to VAL Also checked the ID of the FORM (form1 in my case)
used the Firefox firebug to check whether the element was inserted.
Hidden elements do get posted back in the form collection, only read-only fields are discarded.
Michel
If you want all groups known to the system, I would recommend using getent group
instead of parsing /etc/group
:
getent group
The reason is that on networked systems, groups may not only read from /etc/group
file, but also obtained through LDAP or Yellow Pages (the list of known groups comes from the local group file plus groups received via LDAP or YP in these cases).
If you want just the group names you can use:
getent group | cut -d: -f1
In general it is safer to work on copies than on original data frames, except when you know that you won't be needing the original anymore and want to proceed with the manipulated version. Normally, you would still have some use for the original data frame to compare with the manipulated version, etc. Therefore, most people work on copies and merge at the end.
You could also use custom events:
function Typer() {
// Some stuff
$(anyDomElement).trigger("myCustomEvent");
}
$(anyDomElement).on("myCustomEvent", function() {
// Some other stuff
});
mv tobecopied/tobeexcluded .
cp -r tobecopied dest/
mv tobeexcluded tobecopied/
I had the same problem and after looking around I found this:
SELECT DATENAME(yyyy, date) AS year
FROM Income
GROUP BY DATENAME(yyyy, date)
It's working great!
If you have sed:
sed -e '/REFERENCE/d' -e '/ERROR/d' [FILENAME]
Where FILENAME
is the name of the text file with the good & bad lines
Unfortunately, the file.encoding
property has to be specified as the JVM starts up; by the time your main method is entered, the character encoding used by String.getBytes()
and the default constructors of InputStreamReader
and OutputStreamWriter
has been permanently cached.
As Edward Grech points out, in a special case like this, the environment variable JAVA_TOOL_OPTIONS
can be used to specify this property, but it's normally done like this:
java -Dfile.encoding=UTF-8 … com.x.Main
Charset.defaultCharset()
will reflect changes to the file.encoding
property, but most of the code in the core Java libraries that need to determine the default character encoding do not use this mechanism.
When you are encoding or decoding, you can query the file.encoding
property or Charset.defaultCharset()
to find the current default encoding, and use the appropriate method or constructor overload to specify it.
JAVA_HOME
is not necessary if you start java and javac from the command line. But JAVA_HOME
should point to the real jdk directory, C:\Program Files\Java\jdk1.7.0
in your case.
I'd never use the CLASSPATH
environment variable outside of build scripts, especially not global defined. The -cp
flag is better. But in your case, as you do not need additional libraries (rt.jar
doesn't count), you won't need a classpath declaration. A missing -cp
is equivalent to a -cp .
and that's what you need here)
The (I was pretty sure, that a source file needs one public class... or was it one public class at most ?)HelloWorld
class needs to be declared as public
. This actually may be the cause for your problems.
For Rails 5.2.4.1, I had to
app.extend app._routes.named_routes.path_helpers_module
app.whatever_path
New Selenium libraries are now out, according to: https://github.com/SeleniumHQ/selenium/issues/2110
The download page http://www.seleniumhq.org/download/ seems not to be updated just yet, but by adding 1 to the minor version in the link, I could download the C# version: http://selenium-release.storage.googleapis.com/2.53/selenium-dotnet-2.53.1.zip
It works for me with Firefox 47.0.1.
As a side note, I was able build just the webdriver.xpi Firefox extension from the master branch in GitHub, by running ./go //javascript/firefox-driver:webdriver:run
– which gave an error message but did build the build/javascript/firefox-driver/webdriver.xpi file, which I could rename (to avoid a name clash) and successfully load with the FirefoxProfile.AddExtension method. That was a reasonable workaround without having to rebuild the entire Selenium library.
One big and great approach is to load the module from a NgModuleFactory
, you can load a module inside another module by calling this:
constructor(private loader: NgModuleFactoryLoader, private injector: Injector) {}
loadModule(path: string) {
this.loader.load(path).then((moduleFactory: NgModuleFactory<any>) => {
const entryComponent = (<any>moduleFactory.moduleType).entry;
const moduleRef = moduleFactory.create(this.injector);
const compFactory = moduleRef.componentFactoryResolver.resolveComponentFactory(entryComponent);
this.lazyOutlet.createComponent(compFactory);
});
}
I got this from here.
The problem with all of these answers for me was they weren't responsive. I had to have a fixed height for a parent div which i didn't want. I also didn't want to spend a ton of time dinking around with media queries. If you are using angular, you can use bootstraps tabset and it will do all of the hard work for you. You'll be able to scroll the inner content and it will be responsive. When you setup the tab, do it like this: $scope.tab = { title: '', url: '', theclass: '', ative: true };
... the point is, you don't want a title or image icon. then hide the outline of the tab in cs like this:
.nav-tabs {
border-bottom:none;
}
and also this .nav-tabs > li.active > a, .nav-tabs > li.active > a:hover, .nav-tabs > li.active > a:focus {border:none;}
and finally to remove the invisible tab that you can still click on if you don't implement this: .nav > li > a {padding:0px;margin:0px;}
If you don't declare a function and it only appears after being called, it is automatically assumed to be int
, so in your case, you didn't declare
void my_print (char *);
void my_print2 (char *);
before you call it in main, so the compiler assume there are functions which their prototypes are int my_print2 (char *);
and int my_print2 (char *);
and you can't have two functions with the same prototype except of the return type, so you get the error of conflicting types
.
As Brian suggested, declare those two methods before main.
Laravel makes it very easy to manage your database connections through app/config/database.php
.
As you noted, it is looking for a database called 'database'. The reason being that this is the default name in the database configuration file.
'mysql' => array(
'driver' => 'mysql',
'host' => 'localhost',
'database' => 'database', <------ Default name for database
'username' => 'root',
'password' => '',
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
),
Change this to the name of the database that you would like to connect to like this:
'mysql' => array(
'driver' => 'mysql',
'host' => 'localhost',
'database' => 'my_awesome_data', <------ change name for database
'username' => 'root', <------ remember credentials
'password' => '',
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
),
Once you have this configured correctly you will easily be able to access your database!
Happy Coding!
For reference, a non-CSS solution:
Below is some JS that re-sizes a font depending on the text length within a container.
Codepen with slightly modified code, but same idea as below:
function scaleFontSize(element) {
var container = document.getElementById(element);
// Reset font-size to 100% to begin
container.style.fontSize = "100%";
// Check if the text is wider than its container,
// if so then reduce font-size
if (container.scrollWidth > container.clientWidth) {
container.style.fontSize = "70%";
}
}
For me, I call this function when a user makes a selection in a drop-down, and then a div in my menu gets populated (this is where I have dynamic text occurring).
scaleFontSize("my_container_div");
In addition, I also use CSS ellipses ("...") to truncate yet even longer text too, like so:
#my_container_div {
width: 200px; /* width required for text-overflow to work */
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
So, ultimately:
Short text: e.g. "APPLES"
Fully rendered, nice big letters.
Long text: e.g. "APPLES & ORANGES"
Gets scaled down 70%, via the above JS scaling function.
Super long text: e.g. "APPLES & ORANGES & BANAN..."
Gets scaled down 70% AND gets truncated with a "..." ellipses, via the above JS scaling function together with the CSS rule.
You could also explore playing with CSS letter-spacing to make text narrower while keeping the same font size.
In the hope that it will be useful to some, you may want to check out my go at it:
While there are a couple of good and well-documented IMAP libraries for .NET available, none of them are free for personal, let alone commercial use...and I was just not all that satisfied with the mostly abandoned free alternatives I found.
S22.Imap supports IMAP IDLE notifications as well as SSL and partial message fetching. I have put some effort into producing documentation and keeping it up to date, because with the projects I found, documentation was often sparse or non-existent.
Feel free to give it a try and let me know if you run into any issues!
Here is an example based on Boost.Preprocessor:
#include <iostream>
#include <boost/preprocessor/punctuation/comma.hpp>
#include <boost/preprocessor/control/iif.hpp>
#include <boost/preprocessor/comparison/equal.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/preprocessor/seq/for_each.hpp>
#include <boost/preprocessor/seq/size.hpp>
#include <boost/preprocessor/seq/seq.hpp>
#define DEFINE_ENUM(name, values) \
enum name { \
BOOST_PP_SEQ_FOR_EACH(DEFINE_ENUM_VALUE, , values) \
}; \
inline const char* format_##name(name val) { \
switch (val) { \
BOOST_PP_SEQ_FOR_EACH(DEFINE_ENUM_FORMAT, , values) \
default: \
return 0; \
} \
}
#define DEFINE_ENUM_VALUE(r, data, elem) \
BOOST_PP_SEQ_HEAD(elem) \
BOOST_PP_IIF(BOOST_PP_EQUAL(BOOST_PP_SEQ_SIZE(elem), 2), \
= BOOST_PP_SEQ_TAIL(elem), ) \
BOOST_PP_COMMA()
#define DEFINE_ENUM_FORMAT(r, data, elem) \
case BOOST_PP_SEQ_HEAD(elem): \
return BOOST_PP_STRINGIZE(BOOST_PP_SEQ_HEAD(elem));
DEFINE_ENUM(Errors,
((ErrorA)(0))
((ErrorB))
((ErrorC)))
int main() {
std::cout << format_Errors(ErrorB) << std::endl;
}
#include <stdio.h>
#include <stdlib.h>
int func(char a, char b, char c) /* demonstration that char on stack is promoted to int !!!
note: this promotion is NOT integer promotion, but promotion during handling of the stack. don't confuse the two */
{
const char *p = &a;
printf("a=%d\n"
"b=%d\n"
"c=%d\n", *p, p[-(int)sizeof(int)], p[-(int)sizeof(int) * 2]); // don't do this. might probably work on x86 with gcc (but again: don't do this)
}
int main(void)
{
func(1, 2, 3);
//printf with %d treats its argument as int (argument must be int or smaller -> works because of conversion to int when on stack -- see demo above)
printf("%d, %d, %d\n", (long long) 1, 2, 3); // don't do this! Argument must be int or smaller type (like char... which is converted to int when on the stack -- see above)
// backslash followed by number is a oct VALUE
printf("%d\n", '\377'); /* prints -1 -> IF char is signed char: char literal has all bits set and is thus value -1.
-> char literal is then integer promoted to int. (this promotion has nothing to do with the stack. don't confuse the two!!!) */
/* prints 255 -> IF char is unsigned char: char literal has all bits set and is thus value 255.
-> char literal is then integer promoted to int */
// backslash followed by x is a hex VALUE
printf("%d\n", '\xff'); /* prints -1 -> IF char is signed char: char literal has all bits set and is thus value -1.
-> char literal is then integer promoted to int */
/* prints 255 -> IF char is unsigned char: char literal has all bits set and is thus value 255.
-> char literal is then integer promoted to int */
printf("%d\n", 255); // prints 255
printf("%d\n", (char)255); // prints -1 -> 255 is cast to char where it is -1
printf("%d\n", '\n'); // prints 10 -> Ascii newline has VALUE 10. The char 10 is integer promoted to int 10
printf("%d\n", sizeof('\n')); // prints 4 -> Ascii newline is char, but integer promoted to int. And sizeof(int) is 4 (on many architectures)
printf("%d\n", sizeof((char)'\n')); // prints 1 -> Switch off integer promotion via cast!
return 0;
}
The short answer is that the syntax is this.dataset.whatever
.
Your code should look like this:
<div data-uid="aaa" data-name="bbb" data-value="ccc"
onclick="fun(this.dataset.uid, this.dataset.name, this.dataset.value)">
Another important note: Javascript will always strip out hyphens and make the data attributes camelCase, regardless of whatever capitalization you use. data-camelCase
will become this.dataset.camelcase
and data-Camel-case
will become this.dataset.camelCase
.
jQuery (after v1.5 and later) always uses lowercase, regardless of your capitalization.
So when referencing your data attributes using this method, remember the camelCase:
<div data-this-is-wild="yes, it's true"
onclick="fun(this.dataset.thisIsWild)">
Also, you don't need to use commas to separate attributes.
Make sure you have removed unavailable libraries (jar files) from build path
v
has 10
element, the index starts from 0
to 9
.
for(int j=10;j>0;--j)
{
cout<<v[j]; // v[10] out of range
}
you should update for
loop to
for(int j=9; j>=0; --j)
// ^^^^^^^^^^
{
cout<<v[j]; // out of range
}
Or use reverse iterator to print element in reverse order
for (auto ri = v.rbegin(); ri != v.rend(); ++ri)
{
std::cout << *ri << std::endl;
}
The answer here is correct, I however struggled to implement it in an ASP.NET MVC 3 app. I wanted to access a Session object in a controller and couldn't figure out why I kept on getting a "Instance not set to an instance of an Object error". What I noticed is that in a controller when I tried to access the session by doing the following, I kept on getting that error. This is due to the fact that this.HttpContext is part of the Controller object.
this.Session["blah"]
// or
this.HttpContext.Session["blah"]
However, what I wanted was the HttpContext that's part of the System.Web namespace because this is the one the Answer above suggests to use in Global.asax.cs. So I had to explicitly do the following:
System.Web.HttpContext.Current.Session["blah"]
this helped me, not sure if I did anything that isn't M.O. around here, but I hope it helps someone!
Since Java 7 you can use java.nio.file.Files.size(Path p)
.
Path path = Paths.get("C:\\1.txt");
long expectedSizeInMB = 27;
long expectedSizeInBytes = 1024 * 1024 * expectedSizeInMB;
long sizeInBytes = -1;
try {
sizeInBytes = Files.size(path);
} catch (IOException e) {
System.err.println("Cannot get the size - " + e);
return;
}
if (sizeInBytes > expectedSizeInBytes) {
System.out.println("Bigger than " + expectedSizeInMB + " MB");
} else {
System.out.println("Not bigger than " + expectedSizeInMB + " MB");
}
Since this has been removed from GitHub, I've been using gitk
on Linux to do this.
From terminal go to your repository and type gitk
.
In the middle of the GUI, there's a search box. It provides a good selection of filters:
Scope - containing, touching paths, adding/removing string, changing line matching
Match type - Exact/IgnCase/Regexp
Search fields - All fields/Headline/Comments/Committer
Depending on your requirements, you may want to use stl lists for these types of operations. You can iterate through your list until you find the element, and erase the element. If you can't use lists, then you'll have to shift everything yourself, either by some sort of stl algorithm or manually.
please fill the @likeTablename param for search table.
now this parameter set to %tbltrans% for search all table contain tbltrans in name.
set @likeTablename to '%' to show all table.
declare @AllTableNames nvarchar(max);
select @AllTableNames=STUFF((select ' SELECT TABLE_CATALOG collate DATABASE_DEFAULT+''.''+TABLE_SCHEMA collate DATABASE_DEFAULT+''.''+TABLE_NAME collate DATABASE_DEFAULT as tablename FROM '+name+'.INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = ''BASE TABLE'' union '
FROM master.sys.databases
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'');
set @AllTableNames=left(@AllTableNames,len(@AllTableNames)-6)
declare @likeTablename nvarchar(200)='%tbltrans%';
set @AllTableNames=N'select tablename from('+@AllTableNames+N')at where tablename like '''+N'%'+@likeTablename+N'%'+N''''
exec sp_executesql @AllTableNames
public static double calculateInventoryTotal(Book[] arrayBooks) {
final AtomicReference<BigDecimal> total = new AtomicReference<>(BigDecimal.ZERO);
Optional.ofNullable(arrayBooks).map(Arrays::asList).ifPresent(books -> books.forEach(book -> total.accumulateAndGet(book.getPrice(), BigDecimal::add)));
return total.get().doubleValue();
}
printing a list can also cause this problem (im new in python, so it confused me a bit too):
>>>myList = ['\\']
>>>print myList
['\\']
>>>print ''.join(myList)
\
similarly:
>>>myList = ['\&']
>>>print myList
['\\&']
>>>print ''.join(myList)
\&
Add an id attribute to a html tag
<ul class="nav nav-tabs">
<li><a href="#aaa" data-toggle="tab" id="tab_aaa">AAA</a></li>
<li><a href="#bbb" data-toggle="tab" id="tab_bbb">BBB</a></li>
<li><a href="#ccc" data-toggle="tab" id="tab_ccc">CCC</a></li>
</ul>
<div class="tab-content" id="tabs">
<div class="tab-pane" id="aaa">...Content...</div>
<div class="tab-pane" id="bbb">...Content...</div>
<div class="tab-pane" id="ccc">...Content...</div>
</div>
Then using JQuery
$("#tab_aaa").tab('show');
try this
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/upkia"/>
<corners android:radius="10dp"
android:topRightRadius="0dp"
android:bottomRightRadius="0dp" />
</shape>
In [1]: df
Out[1]:
data
0 1
1 2
2 3
3 4
You want to apply a function that conditionally returns a value based on the selected dataframe column.
In [2]: df['data'].apply(lambda x: 'true' if x <= 2.5 else 'false')
Out[2]:
0 true
1 true
2 false
3 false
Name: data
You can then assign that returned column to a new column in your dataframe:
In [3]: df['desired_output'] = df['data'].apply(lambda x: 'true' if x <= 2.5 else 'false')
In [4]: df
Out[4]:
data desired_output
0 1 true
1 2 true
2 3 false
3 4 false
Open $CATALINA_BASE/conf/web.xml
and find this
<!-- ==================== Default Session Configuration ================= -->
<!-- You can set the default session timeout (in minutes) for all newly -->
<!-- created sessions by modifying the value below. -->
<session-config>
<session-timeout>30</session-timeout>
</session-config>
all webapps implicitly inherit from this default web descriptor. You can override session-config as well as other settings defined there in your web.xml.
This is actually from my Tomcat 7 (Windows) but I think 5.5 conf is not very different
I tried most of the examples given above for a null in an android app l was building and IT ALL FAILED. So l came up with a solution that worked anytime for me.
String test = null+"";
If(!test.equals("null"){
//go ahead string is not null
}
So simply concatenate an empty string as l did above and test against "null" and it works fine. In fact no exception is thrown
Try adding the line c = cv.WaitKey(10)
at the bottom of your repeat()
method.
This waits for 10 ms for the user to enter a key. Even if you're not using the key at all, put this in. I think there just needed to be some delay, so time.sleep(10)
may also work.
In regards to the camera index, you could do something like this:
for i in range(3):
capture = cv.CaptureFromCAM(i)
if capture: break
This will find the index of the first "working" capture device, at least for indices from 0-2. It's possible there are multiple devices in your computer recognized as a proper capture device. The only way I know of to confirm you have the right one is manually looking at your light. Maybe get an image and check its properties?
To add a user prompt to the process, you could bind a key to switching cameras in your repeat loop:
import cv
cv.NamedWindow("w1", cv.CV_WINDOW_AUTOSIZE)
camera_index = 0
capture = cv.CaptureFromCAM(camera_index)
def repeat():
global capture #declare as globals since we are assigning to them now
global camera_index
frame = cv.QueryFrame(capture)
cv.ShowImage("w1", frame)
c = cv.WaitKey(10)
if(c=="n"): #in "n" key is pressed while the popup window is in focus
camera_index += 1 #try the next camera index
capture = cv.CaptureFromCAM(camera_index)
if not capture: #if the next camera index didn't work, reset to 0.
camera_index = 0
capture = cv.CaptureFromCAM(camera_index)
while True:
repeat()
disclaimer: I haven't tested this so it may have bugs or just not work, but might give you at least an idea of a workaround.
The basic framework suggested looks fine, but the error object as defined is too limited. One often cannot use a single value to express the problem, and instead a chain of problems and causes is needed.
I did a little research and found that the most common format for returning error (exceptions) is a structure of this form:
{
"success": false,
"error": {
"code": "400",
"message": "main error message here",
"target": "approx what the error came from",
"details": [
{
"code": "23-098a",
"message": "Disk drive has frozen up again. It needs to be replaced",
"target": "not sure what the target is"
}
],
"innererror": {
"trace": [ ... ],
"context": [ ... ]
}
}
}
This is the format proposed by the OASIS data standard OASIS OData and seems to be the most standard option out there, however there does not seem to be high adoption rates of any standard at this point. This format is consistent with the JSON-RPC specification.
You can find the complete open source library that implements this at: Mendocino JSON Utilities. This library supports the JSON Objects as well as the exceptions.
The details are discussed in my blog post on Error Handling in JSON REST API
If you are using Ant and trying to build then you need to :
Specify tomcat location by <property name="tomcat-home" value="C:\xampp\tomcat" />
Add tomcat libs to your already defined path for jars by
<path id="libs">
<fileset includes="*.jar" dir="${WEB-INF}/lib" />
<fileset includes="*.jar" dir="${tomcat-home}/bin" />
<fileset includes="*.jar" dir="${tomcat-home}/lib" />
</path>
Change it to this will give you the expected format:
$effectiveDate = date('Y-m-d', strtotime("+3 months", strtotime($effectiveDate)));
Rucksack is brilliant, but you don't necessarily have to resort to build tools like Gulp or Grunt etc.
I made a demo using CSS Custom Properties (CSS Variables) to easily control the min and max font sizes.
Like so:
* {
/* Calculation */
--diff: calc(var(--max-size) - var(--min-size));
--responsive: calc((var(--min-size) * 1px) + var(--diff) * ((100vw - 420px) / (1200 - 420))); /* Ranges from 421px to 1199px */
}
h1 {
--max-size: 50;
--min-size: 25;
font-size: var(--responsive);
}
h2 {
--max-size: 40;
--min-size: 20;
font-size: var(--responsive);
}
The question is already answered but these were not working in my case which is alpine Linux based OS so maybe this helps someone else.
I was also getting same error
gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
So fix by single line just add this if you are working in Dockerfile or install it in OS
apk add --no-cache python nodejs
in ubuntu
sudo apt-get install python3.6
Note: Node version:8
It sounds like this
is referring to something else than you think. In what context are you using it?
The this
keyword is usually only used within a callback function of an event-handler, when you loop over a set of elements, or similar. In that context it refers to a particular DOM-element, and can be used the way you do.
If you only want to access that particular button (outside any callback or loop) and don't have any other elements that use the btn-info
class, you could do something like:
parseInt($(".btn-info").data('votevalue'), 10);
You could also assign the element an ID, and use that to select on, which is probably a safer way, if you want to be sure that only one element match your selector.
std::string a = "Hello ";
a += "World";
You can go to File -> Preferences -> Keyboard Shortcut. Once you are there, you can search for navigate. Then, you will see all shortcuts set for your VS Code environment related to navigation. In my case, it was only Alt + '-' to get my cursor back.
Couldn't find any official documentation (no surprise there) but according to this interesting article, those elements are injected in order to enable Word to convert the HTML back to fully compatible Word document, with everything preserved.
The relevant paragraph:
Microsoft added the special tags to Word's HTML with an eye toward backward compatibility. Microsoft wanted you to be able to save files in HTML complete with all of the tracking, comments, formatting, and other special Word features found in traditional DOC files. If you save a file in HTML and then reload it in Word, theoretically you don't loose anything at all.
This makes lots of sense.
For your specific question.. the o
in the <o:p>
means "Office namespace" so anything following the o:
in a tag means "I'm part of Office namespace" - in case of <o:p>
it just means paragraph, the equivalent of the ordinary <p>
tag.
I assume that every HTML tag has its Office "equivalent" and they have more.
You can initialize a list of string and add those items that are selected.
Please check code, works fine for me.
List<string> modules = new List<string>();
foreach(ListItem s in chk_modules.Items)
{
if (s.Selected)
{
modules.Add(s.Value);
}
}
If you are looking for paragraph indent then you can go for 'text-indent' declaration in CSS.
<!DOCTYPE html>
<html>
<head>
<style>
p { text-indent: 50px; }
</style>
</head>
<body>
<p>This paragraph will be indented by 50px. I hope this helps! Only the first line will be indented.</p>
</body>
</html>
The method you're using to read the http body response returns a byte slice:
func ReadAll(r io.Reader) ([]byte, error)
You can convert []byte
to a string by using
body, err := ioutil.ReadAll(resp.Body)
bodyString := string(body)
Most of the time you can just npm update (or yarn upgrade) a module to get the latest non breaking changes (respecting the semver specified in your package.json) (<-- read that last part again).
npm update browser-sync
-------
yarn upgrade browser-sync
- Use
npm|yarn outdated
to see which modules have newer versions- Use
npm update|yarn upgrade
(without a package name) to update all modules- Include
--save-dev|--dev
if you want to save the newer version numbers to your package.json. (NOTE: as of npm v5.0 this is only necessary fordevDependencies
).
Major version upgrades:
In your case, it looks like you want the next major version (v2.x.x), which is likely to have breaking changes and you will need to update your app to accommodate those changes. You can install/save the latest 2.x.x
by doing:
npm install browser-sync@2 --save-dev
-------
yarn add browser-sync@2 --dev
...or the latest 2.1.x
by doing:
npm install [email protected] --save-dev
-------
yarn add [email protected] --dev
...or the latest and greatest by doing:
npm install browser-sync@latest --save-dev
-------
yarn add browser-sync@latest --dev
Note: the last one is no different than doing this:
npm uninstall browser-sync --save-dev npm install browser-sync --save-dev ------- yarn remove browser-sync --dev yarn add browser-sync --dev
The
--save-dev
part is important. This will uninstall it, remove the value from your package.json, and then reinstall the latest version and save the new value to your package.json.
I don't know of a global setting nither but you can try this:
For new MySQL 5.6 family you need to install php5-mysqlnd, not php5-mysql.
Remove this version of the mysql driver
sudo apt-get remove php5-mysql
And install this instead
sudo apt-get install php5-mysqlnd
If anyone is looking for a quick fix for this, here's how you do it.
while (array[i] != '\0') i++;
The variable i will hold the used length of the array, not the entire initialized array. I know it's a late post, but it may help someone.
How about this method:
Set a field in the first object to a new value. If the same field in the second object has the same value, it's probably the same instance. Otherwise, exit as different.
Now set the field in the first object to a different new value. If the same field in the second object has changed to the different value, it's definitely the same instance.
Don't forget to set field in the first object back to it's original value on exit.
Problems?
43 is the dec ascii number for the "+" symbol. That explains why you get a 43 back. http://en.wikipedia.org/wiki/ASCII
userType = (user.Type == 0) ? "Admin" : (user.type == 1) ? "User" : "Admin";
should do the trick.
There is no way you can delete a pull request yourself -- you and the repo owner (and all users with push access to it) can close it, but it will remain in the log. This is part of the philosophy of not denying/hiding what happened during development.
However, if there are critical reasons for deleting it (this is mainly violation of Github Terms of Service), Github support staff will delete it for you.
Whether or not they are willing to delete your PR for you is something you can easily ask them, just drop them an email at [email protected]
UPDATE: Currently Github requires support requests to be created here: https://support.github.com/contact
It will also be empty if the new Referrer Policy standard draft is used to prevent that the referer header is sent to the request origin. Example:
<meta name="referrer" content="none">
Although Chrome and Firefox have already implemented a draft version of the Referrer Policy, you should be careful with it because for example Chrome expects no-referrer
instead of none
(and I have seen also never
somewhere).
So here is the brief summary for Bootstrap 4:
<div class="container-fluid px-0">
<div class="row no-gutters">
<div class="col-12"> //any cols you need
...
</div>
</div>
</div>
It works for me.
This is probably the easiest way:
new Date(<your-date-object>.toDateString());
Example: To get the Current Date without time component:
new Date(new Date().toDateString());
gives: Thu Jul 11 2019 00:00:00 GMT-0400 (Eastern Daylight Time)
Note this works universally, because toDateString()
produces date string with your browser's localization (without the time component), and the new Date()
uses the same localization to parse that date string.
It is because Ajax is asynchronous, the success
or the error
function will be called later, when the server answer the client. So, just move parts depending on the result into your success function like that :
jQuery.ajax({
type:"post",
dataType:"json",
url: myAjax.ajaxurl,
data: {action: 'submit_data', info: info},
success: function(data) {
successmessage = 'Data was succesfully captured';
$("label#successmessage").text(successmessage);
},
error: function(data) {
successmessage = 'Error';
$("label#successmessage").text(successmessage);
},
});
$(":input").val('');
return false;
You should look at the article C++ Programming/Type Casting.
It contains a good description of all of the different cast types. The following taken from the above link:
const_cast
const_cast(expression) The const_cast<>() is used to add/remove const(ness) (or volatile-ness) of a variable.
static_cast
static_cast(expression) The static_cast<>() is used to cast between the integer types. 'e.g.' char->long, int->short etc.
Static cast is also used to cast pointers to related types, for example casting void* to the appropriate type.
dynamic_cast
Dynamic cast is used to convert pointers and references at run-time, generally for the purpose of casting a pointer or reference up or down an inheritance chain (inheritance hierarchy).
dynamic_cast(expression)
The target type must be a pointer or reference type, and the expression must evaluate to a pointer or reference. Dynamic cast works only when the type of object to which the expression refers is compatible with the target type and the base class has at least one virtual member function. If not, and the type of expression being cast is a pointer, NULL is returned, if a dynamic cast on a reference fails, a bad_cast exception is thrown. When it doesn't fail, dynamic cast returns a pointer or reference of the target type to the object to which expression referred.
reinterpret_cast
Reinterpret cast simply casts one type bitwise to another. Any pointer or integral type can be casted to any other with reinterpret cast, easily allowing for misuse. For instance, with reinterpret cast one might, unsafely, cast an integer pointer to a string pointer.
This can be done safely using promises
function loadScript(src) {
return new Promise(function(resolve, reject) {
let script = document.createElement('script');
script.src = src;
script.onload = () => resolve(script);
script.onerror = () => reject(new Error("Script load error: " + src));
document.head.append(script);
});
}
and use like this
let promise = loadScript("https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.2.0/lodash.js");
promise.then(
script => alert(`${script.src} is loaded!`),
error => alert(`Error: ${error.message}`)
);
You are missing the dot on the selector, and you can use toggleClass method on jquery:
$(".result").hover(
function () {
$(this).toggleClass("result_hover")
}
);
please, be sure your connected to a ubuntu server, I Had the same problem but I was connected to other distro, check the AMI value in your details instance, it should be something like
AMI: ubuntu/images/ebs/ubuntu-precise-12.04-amd64-server-20130411.1
hope it helps
In the recent implementation, java.sql.Data is an subclass of java.util.Date, so no converting needed. see here: https://docs.oracle.com/javase/1.5.0/docs/api/java/sql/Date.html
Steps to Remove app from App Store
For Ubuntu 16.04
, I have used this command for PHP7.2
and it worked for me.
sudo apt-get install php7.2-zip
Write one table per join, like this:
select tab1.a,tab2.b,tab3.c,tab4.d
from
table1 tab1
inner join table2 tab2 on tab2.fg = tab1.fg
left join table3 tab3 on tab3.xxx = tab1.xxx and tab3.desc = "XYZ"
left join table4 tab4 on tab4.xya = tab3.xya and tab4.ss = tab3.ss
left join table5 tab5 on tab5.dd = tab3.dd and tab5.kk = tab4.kk
Note that while my query contains actual left join, your query apparently doesn't.
Since the conditions are in the where, your query should behave like inner joins. (Although I admit I don't know Informix, so maybe I'm wrong there).
The specfific Informix extension used in the question works a bit differently with regards to left joins. Apart from the exact syntax of the join itself, this is mainly in the fact that in Informix, you can specify a list of outer joined tables. These will be left outer joined, and the join conditions can be put in the where clause. Note that this is a specific extension to SQL. Informix also supports 'normal' left joins, but you can't combine the two in one query, it seems.
In Oracle this extension doesn't exist, and you can't put outer join conditions in the where clause, since the conditions will be executed regardless.
So look what happens when you move conditions to the where clause:
select tab1.a,tab2.b,tab3.c,tab4.d
from
table1 tab1
inner join table2 tab2 on tab2.fg = tab1.fg
left join table3 tab3 on tab3.xxx = tab1.xxx
left join table4 tab4 on tab4.xya = tab3.xya
left join table5 tab5 on tab5.dd = tab3.dd and tab5.kk = tab4.kk
where
tab3.desc = "XYZ" and
tab4.ss = tab3.ss
Now, only rows will be returned for which those two conditions are true. They cannot be true when no row is found, so if there is no matching row in table3 and/or table4, or if ss
is null in either of the two, one of these conditions is going to return false, and no row is returned. This effectively changed your outer join to an inner join, and as such changes the behavior significantly.
PS: left join
and left outer join
are the same. It means that you optionally join the second table to the first (the left one). Rows are returned if there is only data in the 'left' part of the join. In Oracle you can also right [outer] join
to make not the left, but the right table the leading table. And there is and even full [outer] join
to return a row if there is data in either table.
You need to edit cassandra.yaml
on the node you are trying to connect to and set the node ip address for rpc_address
and listen_address
and restart Cassandra.
rpc_address
is the address on which Cassandra listens to the client calls.
listen_address
is the address on which Cassandra listens to the other Cassandra nodes.
How do I check a variable if it's null or undefined
just check if a variable has a valid value like this :
if(variable)
it will return true if variable does't contain :
Recently, I have seen this problem too. Below, you have my solution:
Or it can be a genuine network issue. Restart your network-manager using sudo service network-manager restart
or fix it up
I have just received this error after switching from HTTPS to SSH (for my origin remote). To fix, I simply ran the following command (for each repo):
ssh -T [email protected]
Upon receiving a successful response, I could fetch/push to the repo with ssh.
I took that command from Git's Testing your SSH connection guide, which is part of the greater Connecting to GitHub with with SSH guide.
Convert the integer into a string and then you can use the STUFF function to insert in your colons into time string. Once you've done that you can convert the string into a time datatype.
SELECT CAST(STUFF(STUFF(STUFF(cast(23421155 as varchar),3,0,':'),6,0,':'),9,0,'.') AS TIME)
That should be the simplest way to convert it to a time without doing anything to crazy.
In your example you also had an int where the leading zeros are not there. In that case you can simple do something like this:
SELECT CAST(STUFF(STUFF(STUFF(RIGHT('00000000' + CAST(421151 AS VARCHAR),8),3,0,':'),6,0,':'),9,0,'.') AS TIME)
The proper way to solve it is to change the http
to ssh
.
You can use this git remote rm origin
to remove your remote repo.
And then you can add it again with the ssh sintax (which you can copy from github):
git remote add origin [email protected]:username/reponame.git
.
Check this article. https://www.freecodecamp.org/news/how-to-fix-git-always-asking-for-user-credentials/
There is a third option - using stream().toArray()
- see comments under why didn't stream have a toList method. It turns out to be slower than forEach() or collect(), and less expressive. It might be optimised in later JDK builds, so adding it here just in case.
assuming List<String>
myFinalList = Arrays.asList(
myListToParse.stream()
.filter(Objects::nonNull)
.map(this::doSomething)
.toArray(String[]::new)
);
with a micro-micro benchmark, 1M entries, 20% nulls and simple transform in doSomething()
private LongSummaryStatistics benchmark(final String testName, final Runnable methodToTest, int samples) {
long[] timing = new long[samples];
for (int i = 0; i < samples; i++) {
long start = System.currentTimeMillis();
methodToTest.run();
timing[i] = System.currentTimeMillis() - start;
}
final LongSummaryStatistics stats = Arrays.stream(timing).summaryStatistics();
System.out.println(testName + ": " + stats);
return stats;
}
the results are
parallel:
toArray: LongSummaryStatistics{count=10, sum=3721, min=321, average=372,100000, max=535}
forEach: LongSummaryStatistics{count=10, sum=3502, min=249, average=350,200000, max=389}
collect: LongSummaryStatistics{count=10, sum=3325, min=265, average=332,500000, max=368}
sequential:
toArray: LongSummaryStatistics{count=10, sum=5493, min=517, average=549,300000, max=569}
forEach: LongSummaryStatistics{count=10, sum=5316, min=427, average=531,600000, max=571}
collect: LongSummaryStatistics{count=10, sum=5380, min=444, average=538,000000, max=557}
parallel without nulls and filter (so the stream is SIZED
):
toArrays has the best performance in such case, and .forEach()
fails with "indexOutOfBounds" on the recepient ArrayList, had to replace with .forEachOrdered()
toArray: LongSummaryStatistics{count=100, sum=75566, min=707, average=755,660000, max=1107}
forEach: LongSummaryStatistics{count=100, sum=115802, min=992, average=1158,020000, max=1254}
collect: LongSummaryStatistics{count=100, sum=88415, min=732, average=884,150000, max=1014}
import has from 'lodash/has';
is better because lodash holds all it's functions in a single file, so rather than import the whole 'lodash' library at 100k, it's better to just import lodash's has
function which is maybe 2k.
You seem to be using grep()
like the Unix grep
utility, which is wrong.
Perl's grep()
in scalar context evaluates the expression for each element of a list and returns the number of times the expression was true.
So when $match
contains any "true" value, grep($match, @array)
in scalar context will always return the number of elements in @array
.
Instead, try using the pattern matching operator:
if (grep /$match/, @array) {
print "found it\n";
}
As a workaround, you could consider setting environment variables in the outer layer, like this.
main.py:
import os
os.environ['MYVAL'] = str(myintvariable)
mymodule.py:
import os
myval = None
if 'MYVAL' in os.environ:
myval = os.environ['MYVAL']
As an extra precaution, handle the case when MYVAL is not defined inside the module.
Here is my method to do post request first pass in method map and data like
HashMap<String, String> param = new HashMap<String, String>();
param.put("Name", name);
param.put("Email", email);
param.put("Password", password);
param.put("Img_Name", "");
final JSONObject result = doPostRequest(map,Url);
public static JSONObject doPostRequest(HashMap<String, String> data, String url) {
try {
RequestBody requestBody;
MultipartBuilder mBuilder = new MultipartBuilder().type(MultipartBuilder.FORM);
if (data != null) {
for (String key : data.keySet()) {
String value = data.get(key);
Utility.printLog("Key Values", key + "-----------------" + value);
mBuilder.addFormDataPart(key, value);
}
} else {
mBuilder.addFormDataPart("temp", "temp");
}
requestBody = mBuilder.build();
Request request = new Request.Builder()
.url(url)
.post(requestBody)
.build();
OkHttpClient client = new OkHttpClient();
Response response = client.newCall(request).execute();
String responseBody = response.body().string();
Utility.printLog("URL", url);
Utility.printLog("Response", responseBody);
return new JSONObject(responseBody);
} catch (UnknownHostException | UnsupportedEncodingException e) {
JSONObject jsonObject=new JSONObject();
try {
jsonObject.put("status","false");
jsonObject.put("message",e.getLocalizedMessage());
} catch (JSONException e1) {
e1.printStackTrace();
}
Log.e(TAG, "Error: " + e.getLocalizedMessage());
} catch (Exception e) {
e.printStackTrace();
JSONObject jsonObject=new JSONObject();
try {
jsonObject.put("status","false");
jsonObject.put("message",e.getLocalizedMessage());
} catch (JSONException e1) {
e1.printStackTrace();
}
Log.e(TAG, "Other Error: " + e.getLocalizedMessage());
}
return null;
}
Make sure your code is in DOM Ready as pointed by rocket-hazmat
$('#RootNode').click(function(){
//do something
});
document.getElementById("RootNode").onclick = function(){//do something}
$(document).on("click", "#RootNode", function(){
//do something
});
Wrap Code in Dom Ready
$(document).ready(function(){
$('#RootNode').click(function(){
//do something
});
});
Yes, your secret key appears to be missing. Without it, you will not be able to decrypt the files.
Do you have the key backed up somewhere?
Re-creating the keys, whether you use the same passphrase or not, will not work. Each key pair is unique.
There is a small error in the code of @DyingCactus. Here is the correct solution to add an UILabel to an UIButton to align the button text to better control the button 'title':
NSString *myLabelText = @"Hello World";
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom];
// position in the parent view and set the size of the button
myButton.frame = CGRectMake(myX, myY, myWidth, myHeight);
CGRect myButtonRect = myButton.bounds;
UILabel *myLabel = [[UILabel alloc] initWithFrame: myButtonRect];
myLabel.text = myLabelText;
myLabel.backgroundColor = [UIColor clearColor];
myLabel.textColor = [UIColor redColor];
myLabel.font = [UIFont fontWithName:@"Helvetica Neue" size:14.0];
myLabel.textAlignment = UITextAlignmentLeft;
[myButton addSubview:myLabel];
[myLabel release];
Hope this helps....
Al
I had also faced the same problem just an hour back. I was trying to install QuTip Quantum Toolbox in Python Unfortunately, I didn't stumble onto this page in time. Say you have downloaded Anaconda installer and run it until the end. Naively, I opened the command prompt in windows 10 and proceded to type the following commands as given in the qutip installation docs.
conda create -n qutip-env
conda config --append channels conda-forge
conda install qutip
But as soon as I typed the first line I got the following response
conda is not recognized as an internal or external command, operable program or batch file
I went ahead and tried some other things as seen in this figures error message Finally after going through a number conda websites, I understood how one fixes this problem. Type Anaconda prompt in the search bar at the bottom like this (same place where you hail Cortana) Anaconda prompt
Once you are here all the conda commands will work as usual
When you add an object to $stateProvider.state
that object is then passed with the state. So you can add additional properties which you can read later on when needed.
Example route configuration
$stateProvider
.state('public', {
abstract: true,
module: 'public'
})
.state('public.login', {
url: '/login',
module: 'public'
})
.state('tool', {
abstract: true,
module: 'private'
})
.state('tool.suggestions', {
url: '/suggestions',
module: 'private'
});
The $stateChangeStart
event gives you acces to the toState
and fromState
objects. These state objects will contain the configuration properties.
Example check for the custom module property
$rootScope.$on('$stateChangeStart', function(e, toState, toParams, fromState, fromParams) {
if (toState.module === 'private' && !$cookies.Session) {
// If logged out and transitioning to a logged in page:
e.preventDefault();
$state.go('public.login');
} else if (toState.module === 'public' && $cookies.Session) {
// If logged in and transitioning to a logged out page:
e.preventDefault();
$state.go('tool.suggestions');
};
});
I didn't change the logic of the cookies because I think that is out of scope for your question.
You can create a Helper to get you this to work more modular.
Value publicStates
myApp.value('publicStates', function(){
return {
module: 'public',
routes: [{
name: 'login',
config: {
url: '/login'
}
}]
};
});
Value privateStates
myApp.value('privateStates', function(){
return {
module: 'private',
routes: [{
name: 'suggestions',
config: {
url: '/suggestions'
}
}]
};
});
The Helper
myApp.provider('stateshelperConfig', function () {
this.config = {
// These are the properties we need to set
// $stateProvider: undefined
process: function (stateConfigs){
var module = stateConfigs.module;
$stateProvider = this.$stateProvider;
$stateProvider.state(module, {
abstract: true,
module: module
});
angular.forEach(stateConfigs, function (route){
route.config.module = module;
$stateProvider.state(module + route.name, route.config);
});
}
};
this.$get = function () {
return {
config: this.config
};
};
});
Now you can use the helper to add the state configuration to your state configuration.
myApp.config(['$stateProvider', '$urlRouterProvider',
'stateshelperConfigProvider', 'publicStates', 'privateStates',
function ($stateProvider, $urlRouterProvider, helper, publicStates, privateStates) {
helper.config.$stateProvider = $stateProvider;
helper.process(publicStates);
helper.process(privateStates);
}]);
This way you can abstract the repeated code, and come up with a more modular solution.
Note: the code above isn't tested
What about:
.close-image{
display:block;
cursor:pointer;
z-index:3;
position:absolute;
top:0;
right:0;
}
Is that the desired result?
// Java 8
int vInt = Integer.parseUnsignedInt("4294967295");
System.out.println(vInt); // -1
String sInt = Integer.toUnsignedString(vInt);
System.out.println(sInt); // 4294967295
long vLong = Long.parseUnsignedLong("18446744073709551615");
System.out.println(vLong); // -1
String sLong = Long.toUnsignedString(vLong);
System.out.println(sLong); // 18446744073709551615
// Guava 18.0
int vIntGu = UnsignedInts.parseUnsignedInt(UnsignedInteger.MAX_VALUE.toString());
System.out.println(vIntGu); // -1
String sIntGu = UnsignedInts.toString(vIntGu);
System.out.println(sIntGu); // 4294967295
long vLongGu = UnsignedLongs.parseUnsignedLong("18446744073709551615");
System.out.println(vLongGu); // -1
String sLongGu = UnsignedLongs.toString(vLongGu);
System.out.println(sLongGu); // 18446744073709551615
/**
Integer - Max range
Signed: From -2,147,483,648 to 2,147,483,647, from -(2^31) to 2^31 – 1
Unsigned: From 0 to 4,294,967,295 which equals 2^32 - 1
Long - Max range
Signed: From -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807, from -(2^63) to 2^63 - 1
Unsigned: From 0 to 18,446,744,073,709,551,615 which equals 2^64 – 1
*/
The point for diamond operator is simply to reduce typing of code when declaring generic types. It doesn't have any effect on runtime whatsoever.
The only difference if you specify in Java 5 and 6,
List<String> list = new ArrayList();
is that you have to specify @SuppressWarnings("unchecked")
to the list
(otherwise you will get an unchecked cast warning). My understanding is that diamond operator is trying to make development easier. It's got nothing to do on runtime execution of generics at all.
var intTried = Convert.ChangeType(myObject, typeof(int)) as int?;
The term "stack overrun (overflow)" is often used but a misnomer; attacks do not overflow the stack but buffers on the stack.
-- from lecture slides of Prof. Dr. Dieter Gollmann
thePlayers[i] = new Player(i);
I just deleted the i
inside Player(i)
; and it worked.
so the code line should be:
thePlayers[i] = new Player9();
Use natsort
library:
Install the library with the following command for Ubuntu and other Debian versions
Python 2
sudo pip install natsort
Python 3
sudo pip3 install natsort
Details of how to use this library is found here
from natsort import natsorted
files = ['run01', 'run18', 'run14', 'run13', 'run12', 'run11', 'run08']
natsorted(files)
[out]:
['run01', 'run08', 'run11', 'run12', 'run13', 'run14', 'run18']
Polished Extension from the original answer by @Tom feel free to update the code here
extension UIColor{
convenience init (hexString:String) {
var cleanString:String = hexString.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceAndNewlineCharacterSet()).uppercaseString
if (cleanString.hasPrefix("#")) {
cleanString = cleanString.substringFromIndex(cleanString.startIndex.advancedBy(1))
}
if (cleanString.characters.count != 6) {
self.init()
}
else{
var rgbValue = UInt32()
let scanner = NSScanner(string: cleanString)
scanner.scanHexInt(&rgbValue)
self.init(
red: CGFloat((rgbValue & 0xFF0000) >> 16)/255.0,
green: CGFloat((rgbValue & 0xFF00) >> 8)/255.0,
blue: CGFloat(rgbValue & 0xFF)/255.0,
alpha: 1.0)
}
}
}
TL;DR Check the network mode of your VirtualBox host - it should be bridged
if you want the virtual machine (and the Docker container it's hosting) accessible on your local network.
It sounds like your confusion lies in which host to connect to in order to access your application via HTTP. You haven't really spelled out what your configuration is - I'm going to make some guesses, based on the fact that you've got "Windows" and "VirtualBox" in your tags.
I'm guessing that you have Docker running on some flavour of Linux running in VirtualBox on a Windows host. I'm going to label the IP addresses as follows:
D
= the IP address of the Docker container
L
= the IP address of the Linux host running in VirtualBox
W
= the IP address of the Windows host
When you run your Go application on your Windows host, you can connect to it with http://W:8080/
from anywhere on your local network. This works because the Go application binds the port 8080 on the Windows machine and anybody who tries to access port 8080 at the IP address W
will get connected.
And here's where it becomes more complicated:
VirtualBox, when it sets up a virtual machine (VM), can configure the network in one of several different modes. I don't remember what all the different options are, but the one you want is bridged
. In this mode, VirtualBox connects the virtual machine to your local network as if it were a stand-alone machine on the network, just like any other machine that was plugged in to your network. In bridged
mode, the virtual machine appears on your network like any other machine. Other modes set things up differently and the machine will not be visible on your network.
So, assuming you set up networking correctly for the Linux host (bridged
), the Linux host will have an IP address on your local network (something like 192.168.0.x) and you will be able to access your Docker container at http://L:8080/
.
If the Linux host is set to some mode other than bridged
, you might be able to access from the Windows host, but this is going to depend on exactly what mode it's in.
EDIT - based on the comments below, it sounds very much like the situation I've described above is correct.
Let's back up a little: here's how Docker works on my computer (Ubuntu Linux).
Imagine I run the same command you have: docker run -p 8080:8080 dockertest
. What this does is start a new container based on the dockertest
image and forward (connect) port 8080 on the Linux host (my PC) to port 8080 on the container. Docker sets up it's own internal networking (with its own set of IP addresses) to allow the Docker daemon to communicate and to allow containers to communicate with one another. So basically what you're doing with that -p 8080:8080
is connecting Docker's internal networking with the "external" network - ie. the host's network adapter - on a particular port.
With me so far? OK, now let's take a step back and look at your system. Your machine is running Windows - Docker does not (currently) run on Windows, so the tool you're using has set up a Linux host in a VirtualBox virtual machine. When you do the docker run
in your environment, exactly the same thing is happening - port 8080 on the Linux host is connected to port 8080 on the container. The big difference here is that your Windows host is not the Linux host on which the container is running, so there's another layer here and it's communication across this layer where you are running into problems.
What you need is one of two things:
to connect port 8080 on the VirtualBox VM to port 8080 on the Windows host, just like you connect the Docker container to the host port.
to connect the VirtualBox VM directly to your local network with the bridged
network mode I described above.
If you go for the first option, you will be able to access the container at http://W:8080
where W
is the IP address or hostname of the Windows host. If you opt for the second, you will be able to access the container at http://L:8080
where L
is the IP address or hostname of the Linux VM.
So that's all the higher-level explanation - now you need to figure out how to change the configuration of the VirtualBox VM. And here's where I can't really help you - I don't know what tool you're using to do all this on your Windows machine and I'm not at all familiar with using Docker on Windows.
If you can get to the VirtualBox configuration window, you can make the changes described below. There is also a command line client that will modify VMs, but I'm not familiar with that.
For bridged
mode (and this really is the simplest choice), shut down your VM, click the "Settings" button at the top, and change the network mode to bridged
, then restart the VM and you're good to go. The VM should pick up an IP address on your local network via DHCP and should be visible to other computers on the network at that IP address.
from command line :
mysql -uroot -proot -e "select count(*) from
information_schema.tables where table_schema = 'database_name';"
in above example root is username and password , hosted on localhost.
just put
$a='Link1';
$b='Link2';
in your pass.php and you will get your answer and do a double quotation in your link.php:
echo '<a href="pass.php?link=' . $a . '">Link 1</a>';
You can set triangle with position see this code for reference
.top-left-corner {
width: 0px;
height: 0px;
border-top: 0px solid transparent;
border-bottom: 55px solid transparent;
border-left: 55px solid #289006;
position: absolute;
left: 0px;
top: 0px;
}
what's the easiest way to delete a directory with all it's files in it?
system("rm -rf ".escapeshellarg($dir));
const date = Date().slice(16,21);_x000D_
console.log(date);
_x000D_
class String
def black
return "\e[30m#{self}\e[0m"
end
def red
return "\e[31m#{self}\e[0m"
end
def light_green
return "\e[32m#{self}\e[0m"
end
def purple
return "\e[35m#{self}\e[0m"
end
def blue_dark
return "\e[34m#{self}\e[0m"
end
def blue_light
return "\e[36m#{self}\e[0m"
end
def white
return "\e[37m#{self}\e[0m"
end
def randColor
array_color = [
"\e[30m#{self}\e[0m",
"\e[31m#{self}\e[0m",
"\e[32m#{self}\e[0m",
"\e[35m#{self}\e[0m",
"\e[34m#{self}\e[0m",
"\e[36m#{self}\e[0m",
"\e[37m#{self}\e[0m" ]
return array_color[rand(0..array_color.size)]
end
end
puts "black".black
puts "red".red
puts "light_green".light_green
puts "purple".purple
puts "dark blue".blue_dark
puts "light blue".blue_light
puts "white".white
puts "random color".randColor
From cran, you can install directly from a github repository address. So if you want the package at https://github.com/twitter/AnomalyDetection
:
library(devtools)
install_github("twitter/AnomalyDetection")
does the trick.
The code downloaded may require you to install dependencies first. Try commands(in app.js directory): npm install
then node app.js
. This should install dependencies and then start the app.
sortedWith
+ compareBy
(taking a vararg of lambdas) do the trick:
val sortedList = list.sortedWith(compareBy({ it.age }, { it.name }))
You can also use the somewhat more succinct callable reference syntax:
val sortedList = list.sortedWith(compareBy(Person::age, Person::name))
The following command will list all users belonging to <your_group_name>
, but only those managed by /etc/group
database, not LDAP, NIS, etc. It also works for secondary groups only, it won't list users who have that group set as primary since the primary group is stored as GID
(numeric group ID) in the file /etc/passwd
.
grep <your_group_name> /etc/group
Doesn't SELECT DISTINCT
help? I suppose it would return the result you want.
You can get this in 2 way using moment and also using Javascript
const date = moment("2015-07-02"); // Thursday Feb 2015_x000D_
const usingMoment_1 = date.day();_x000D_
const usingMoment_2 = date.isoWeekday();_x000D_
_x000D_
console.log('usingMoment: date.day() ==> ',usingMoment_1);_x000D_
console.log('usingMoment: date.isoWeekday() ==> ',usingMoment_2);_x000D_
_x000D_
_x000D_
const usingJS= new Date("2015-07-02").getDay();_x000D_
console.log('usingJavaSript: new Date("2015-07-02").getDay() ===> ',usingJS);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
_x000D_
There are a couple of things wrong in this code:
<input>
the wrong way. You should use a <label>
if you want to make the text behind it clickable.enabled
attribute, which does not exist. Use disabled
instead.false
, use disabled="disabled"
or simply disabled
without a value..change()
instead.I'm not sure what your code is supposed to do. My guess is that you want to disable the input field with class roomNumber
once someone selects "Walk in" (and possibly re-enable when deselected). If so, try this code:
HTML:
<form class="type">
<p>
<input type="radio" name="type" checked="checked" id="guest" value="guest" />
<label for="guest">In House</label>
</p>
<p>
<input type="radio" name="type" id="walk_in" value="walk_in" />
<label for="walk_in">Walk in</label>
</p>
<p>
<input type="text" name="roomnumber" class="roomNumber" value="12345" />
</p>
</form>
Javascript:
$("form input:radio").change(function () {
if ($(this).val() == "walk_in") {
// Disable your roomnumber element here
$('.roomNumber').attr('disabled', 'disabled');
} else {
// Re-enable here I guess
$('.roomNumber').removeAttr('disabled');
}
});
I created a fiddle here: http://jsfiddle.net/k28xd/1/
SELECT CONVERT(varchar(11),Getdate(),105)
If you just want to get the minimum of a list, instead of sorting it and then getting the first element (O(N log N)
), you can use do it in linear time using min
:
<T extends Object & Comparable<? super T>> T min(Collection<? extends T> coll)
That looks gnarly at first, but looking at your previous questions, you have a List<String>
. In short: min
works on it.
For the long answer: all that super
and extends
stuff in the generic type constraints is what Josh Bloch calls the PECS principle (usually presented next to a picture of Arnold -- I'M NOT KIDDING!)
Producer Extends, Consumer Super
It essentially makes generics more powerful, since the constraints are more flexible while still preserving type safety (see: what is the difference between ‘super’ and ‘extends’ in Java Generics)
Create a diagram for existing database schema or its subset as follows:
The ERD is displayed.
Export the diagram as follows:
The diagram is exported. To export in a vector format, use To PDF File, instead. This allows for simplified editing using Inkscape (or other vector image editor).
These instructions may work for SQL Developer 3.2.09.23 to 4.1.3.20.
You can import the lib org.apache.commons.lang.ArrayUtils
There is a static method where you can pass in an int array and a value to check for.
contains(int[] array, int valueToFind) Checks if the value is in the given array.
ArrayUtils.contains(intArray, valueToFind);
After multiple trials here is how I got it working for what I wanted. This is what I was trying. - I have a view with a image. and I wanted to have the image go full screen. - I have a navigation controller with a tabBar too. So i need to hide that too. - Also, my main requirement was not just hiding, but having a fading effect too while showing and hiding.
This is how I got it working.
Step 1 - I have a image and user taps on that image once. I capture that gesture and push it into the new imageViewController
, its in the imageViewController
, I want to have full screen image.
- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer {
NSLog(@"Single tap");
ImageViewController *imageViewController =
[[ImageViewController alloc] initWithNibName:@"ImageViewController" bundle:nil];
godImageViewController.imgName = // pass the image.
godImageViewController.hidesBottomBarWhenPushed=YES;// This is important to note.
[self.navigationController pushViewController:godImageViewController animated:YES];
// If I remove the line below, then I get this error. [CALayer retain]: message sent to deallocated instance .
// [godImageViewController release];
}
Step 2 - All these steps below are in the ImageViewController
Step 2.1 - In ViewDidLoad, show the navBar
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
NSLog(@"viewDidLoad");
[[self navigationController] setNavigationBarHidden:NO animated:YES];
}
Step 2.2 - In viewDidAppear
, set up a timer task with delay ( I have it set for 1 sec delay). And after the delay, add fading effect. I am using alpha to use fading.
- (void)viewDidAppear:(BOOL)animated
{
NSLog(@"viewDidAppear");
myTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(fadeScreen) userInfo:nil repeats:NO];
}
- (void)fadeScreen
{
[UIView beginAnimations:nil context:nil]; // begins animation block
[UIView setAnimationDuration:1.95]; // sets animation duration
self.navigationController.navigationBar.alpha = 0.0; // Fades the alpha channel of this view to "0.0" over the animationDuration of "0.75" seconds
[UIView commitAnimations]; // commits the animation block. This Block is done.
}
step 2.3 - Under viewWillAppear
, add singleTap gesture to the image and make the navBar translucent.
- (void) viewWillAppear:(BOOL)animated
{
NSLog(@"viewWillAppear");
NSString *path = [[NSBundle mainBundle] pathForResource:self.imgName ofType:@"png"];
UIImage *theImage = [UIImage imageWithContentsOfFile:path];
self.imgView.image = theImage;
// add tap gestures
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
[self.imgView addGestureRecognizer:singleTap];
[singleTap release];
// to make the image go full screen
self.navigationController.navigationBar.translucent=YES;
}
- (void)handleTap:(UIGestureRecognizer *)gestureRecognizer
{
NSLog(@"Handle Single tap");
[self finishedFading];
// fade again. You can choose to skip this can add a bool, if you want to fade again when user taps again.
myTimer = [NSTimer scheduledTimerWithTimeInterval:5.0 target:self selector:@selector(fadeScreen) userInfo:nil repeats:NO];
}
Step 3 - Finally in viewWillDisappear
, make sure to put all the stuff back
- (void)viewWillDisappear: (BOOL)animated
{
self.hidesBottomBarWhenPushed = NO;
self.navigationController.navigationBar.translucent=NO;
if (self.navigationController.topViewController != self)
{
[self.navigationController setNavigationBarHidden:NO animated:animated];
}
[super viewWillDisappear:animated];
}
I ran into the same problem and then remembered something wonky about a legacy project I was working on and how they handled this issue. I didn't understand it at the time and didn't really care until I ran into the problem myself
var date = '2014-01-02T00:00:00.000Z'
date = date.substring(0,10).split('-')
date = date[1] + '-' + date[2] + '-' + date[0]
new Date(date) #Thu Jan 02 2014 00:00:00 GMT-0600
For whatever reason passing the date in as '01-02-2014' sets the timezone to zero and ignores the user's timezone. This may be a fluke in the Date class but it existed some time ago and exists today. And it seems to work cross-browser. Try it for yourself.
This code is implemented in a global project where timezones matter a lot but the person looking at the date did not care about the exact moment it was introduced.
I read some opinions about the Lombok and actually I'm using it in some projects.
Well, in the first contact with Lombok I had a bad impression. After some weeks, I started to like it. But after some months I figure out a lot of tiny problems using it. So, my final impression about Lombok is not so positive.
My reasons to think in this way:
@Getter @Setter @Builder @AllArgsConstructor @NoArgsConstructor
annotations block without thinking what methods the class really need to be exposed.@Builder
instead of constructor or a static constructor method. Sometimes they even try to create a Builder inside the lombok Builder, creating weird situations like MyClass.builder().name("Name").build().create()
.@AllArgsConstructor
and need to add one more parameter on the constructor, the IDE can't help you to add this extra parameter in all places (mostly, tests) that are instantiating the class.Like another answer said, if you are angry about the Java verbosity and use Lombok to deal with it, try Kotlin.
For me, dataBinding { enabled true } was enabled in gradle, removing this helped me
You can use maxlength
to limit the length. Normally for numeric input you'd use type="number"
, however this adds a spinny box thing to scroll through numbers, which is completely useless for phone numbers. You can, however, use the pattern
attribute to limit input to numbers (and require 10 numbers too, if you want):
<input type="text" maxlength="10" pattern="\d{10}" title="Please enter exactly 10 digits" />
After this thread didn't work out for me for my specific need (scrolling inside a particular element, in my case a textarea) I found this out in the great beyond, which could prove helpful to someone else reading this discussion:
Since I already had a cached version of my jQuery object (the myPanel
in the code below is the jQuery object), the code I added to my event handler was simply this:
myPanel.scrollTop(myPanel[0].scrollHeight - myPanel.height());
(thanks Ben)
Try implementing the interface as anonymous.
public class MyClass extends MySuperClass implements MyInterface{
MyInterface myInterface = new MyInterface(){
/* Overrided method from interface */
@override
public void method1(){
}
};
/* Overrided method from superclass*/
@override
public void method1(){
}
}
You could use a negative look-ahead assertion:
^(?!tbd_).+
Or a negative look-behind assertion:
(^.{1,3}$|^.{4}(?<!tbd_).*)
Or just plain old character sets and alternations:
^([^t]|t($|[^b]|b($|[^d]|d($|[^_])))).*
Ignacio Vazquez-Abrams is correct. But to elaborate, re.match()
will return either None
, which evaluates to False
, or a match object, which will always be True
as he said. Only if you want information about the part(s) that matched your regular expression do you need to check out the contents of the match object.
The correct approach in Angularjs is to use ng-value
for non-string values of models.
Modify your code like this:
<label data-ng-repeat="choice in question.choices">
<input type="radio" name="response" data-ng-model="choice.isUserAnswer" data-ng-value="true" />
{{choice.text}}
</label>
You will have to do it in two steps:
UPDATE MyTable SET MyNullableColumn = 0
WHERE MyNullableColumn IS NULL
ALTER TABLE MyTable
ALTER COLUMN MyNullableColumn MyNullableColumnDatatype NOT NULL
I'm confused. You're injecting a PU into the service layer and not the persistence layer? I don't get that.
I inject the persistence layer into the service layer. The service layer contains business logic and demarcates transaction boundaries. It can include more than one DAO in a transaction.
I don't get the magic in your save() method either. How is the data saved?
In production I configure spring like this:
<jee:jndi-lookup id="entityManagerFactory" jndi-name="persistence/ThePUname" />
along with the reference in web.xml
For unit testing I do this:
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
p:dataSource-ref="dataSource" p:persistence-xml-location="classpath*:META-INF/test-persistence.xml"
p:persistence-unit-name="RealPUName" p:jpaDialect-ref="jpaDialect"
p:jpaVendorAdapter-ref="jpaVendorAdapter" p:loadTimeWeaver-ref="weaver">
</bean>
I added <preference name="android-minSdkVersion" value="19" />
to my conf.xml
and the build was successful.
public List<Contact> removeDuplicates(List<Contact> list) {
// Set set1 = new LinkedHashSet(list);
Set set = new TreeSet(new Comparator() {
@Override
public int compare(Object o1, Object o2) {
if(((Contact)o1).getId().equalsIgnoreCase(((Contact)2).getId()) ) {
return 0;
}
return 1;
}
});
set.addAll(list);
final List newList = new ArrayList(set);
return newList;
}
Please remove e.preventDefault()
, because event.cancelable
of touchmove is false
.
So you can't call this method.
Was CV_FONT_HERSHEY_SIMPLEX
in cv(1)?
Here's all I have available for cv2 "FONT":
FONT_HERSHEY_COMPLEX
FONT_HERSHEY_COMPLEX_SMALL
FONT_HERSHEY_DUPLEX
FONT_HERSHEY_PLAIN
FONT_HERSHEY_SCRIPT_COMPLEX
FONT_HERSHEY_SCRIPT_SIMPLEX
FONT_HERSHEY_SIMPLEX
FONT_HERSHEY_TRIPLEX
FONT_ITALIC
Dropping the 'CV_' seems to work for me.
cv2.putText(image,"Hello World!!!", (x,y), cv2.FONT_HERSHEY_SIMPLEX, 2, 255)
I'll generalize the problem and the Question as intended. Test assingment on the array, and catch the eventual error
Function IsVarArrayEmpty(anArray as Variant)
Dim aVar as Variant
IsVarArrayEmpty=False
On error resume next
aVar=anArray(1)
If Err.number then '...still, it might not start at this index
aVar=anArray(0)
If Err.number then IsVarArrayEmpty=True ' neither 0 or 1 yields good assignment
EndIF
End Function
Sure it misses arrays with all negative indexes or all > 1... is that likely? in weirdland, yes.
For command line arguments:
VARIABLE="${1:-$DEFAULTVALUE}"
which assigns to VARIABLE
the value of the 1st argument passed to the script or the value of DEFAULTVALUE
if no such argument was passed. Qouting prevents globbing and word splitting.
Note that this may also work:
SELECT * FROM table WHERE s=ANY(array)
If you do use moment.js you would use the moment().utc() function to convert a moment object to UTC. You can also handle a nice format inside the controller instead of the view by using the moment().format() function. For example:
moment(myDate).utc().format('MM/DD/YYYY')
If you manually write out the query with static date values (e.g. '2009-10-29 13:13:07.440') do you get any rows?
So, you are saying that the following two queries produce correct results:
SELECT DISTINCT pat.PublicationID
FROM PubAdvTransData AS pat
INNER JOIN PubAdvertiser AS pa
ON pat.AdvTransID = pa.AdvTransID
WHERE (pat.LastAdDate > '2009-10-29 13:13:07.440') AND (pa.AdvertiserID = 12345))
DECLARE @sp_Date DATETIME
SET @sp_Date = '2009-10-29 13:13:07.440'
SELECT DISTINCT pat.PublicationID
FROM PubAdvTransData AS pat
INNER JOIN PubAdvertiser AS pa
ON pat.AdvTransID = pa.AdvTransID
WHERE (pat.LastAdDate > @sp_Date) AND (pa.AdvertiserID = 12345))
You have no control over GC in java -- the VM decides. I've never run across a case where System.gc()
is needed. Since a System.gc()
call simply SUGGESTS that the VM do a garbage collection and it also does a FULL garbage collection (old and new generations in a multi-generational heap), then it can actually cause MORE cpu cycles to be consumed than necessary.
In some cases, it may make sense to suggest to the VM that it do a full collection NOW as you may know the application will be sitting idle for the next few minutes before heavy lifting occurs. For example, right after the initialization of a lot of temporary object during application startup (i.e., I just cached a TON of info, and I know I won't be getting much activity for a minute or so). Think of an IDE such as eclipse starting up -- it does a lot to initialize, so perhaps immediately after initialization it makes sense to do a full gc at that point.
Well, this solution will help you select only current month, current week and only today
SELECT * FROM games WHERE games.published_gm = 1 AND YEAR(addedon_gm) = YEAR(NOW()) AND MONTH(addedon_gm) = MONTH(NOW()) AND DAY(addedon_gm) = DAY(NOW()) ORDER BY addedon_gm DESC;
For Weekly added posts:
WEEKOFYEAR(addedon_gm) = WEEKOFYEAR(NOW())
For Monthly added posts:
MONTH(addedon_gm) = MONTH(NOW())
For Yearly added posts:
YEAR(addedon_gm) = YEAR(NOW())
you'll get the accurate results where show only the games added today, otherwise you may display: "No New Games Found For Today". Using ShowIF recordset is empty transaction.
This question has been already answered in Unicode characters in Windows command line - how?
You missed one step -> you need to use Lucida console fonts in addition to executing chcp 65001 from cmd console.
Jon's answer talks about TimeZone, but I'd suggest using TimeZoneInfo instead.
Personally I like keeping things in UTC where possible (at least for the past; storing UTC for the future has potential issues), so I'd suggest a structure like this:
public struct DateTimeWithZone
{
private readonly DateTime utcDateTime;
private readonly TimeZoneInfo timeZone;
public DateTimeWithZone(DateTime dateTime, TimeZoneInfo timeZone)
{
var dateTimeUnspec = DateTime.SpecifyKind(dateTime, DateTimeKind.Unspecified);
utcDateTime = TimeZoneInfo.ConvertTimeToUtc(dateTimeUnspec, timeZone);
this.timeZone = timeZone;
}
public DateTime UniversalTime { get { return utcDateTime; } }
public TimeZoneInfo TimeZone { get { return timeZone; } }
public DateTime LocalTime
{
get
{
return TimeZoneInfo.ConvertTime(utcDateTime, timeZone);
}
}
}
You may wish to change the "TimeZone" names to "TimeZoneInfo" to make things clearer - I prefer the briefer names myself.
I'm a little surprised that this question has been asked so many times before, but the most reuseable and friendly solution hasn't been documented.
I often have webpages using AngularJS, and when I click on a Save button, I'll "POST" this data back to my .aspx page or .ashx handler to save this back to the database. The data will be in the form of a JSON record.
On the server, to turn the raw posted data back into a C# class, here's what I would do.
First, define a C# class which will contain the posted data.
Supposing my webpage is posting JSON data like this:
{
"UserID" : 1,
"FirstName" : "Mike",
"LastName" : "Mike",
"Address1" : "10 Really Street",
"Address2" : "London"
}
Then I'd define a C# class like this...
public class JSONRequest
{
public int UserID { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string Address1 { get; set; }
public string Address2 { get; set; }
}
(These classes can be nested, but the structure must match the format of the JSON data. So, if you're posting a JSON User record, with a list of Order records within it, your C# class should also contain a List<>
of Order records.)
Now, in my .aspx.cs or .ashx file, I just need to do this, and leave JSON.Net to do the hard work...
protected void Page_Load(object sender, EventArgs e)
{
string jsonString = "";
HttpContext.Current.Request.InputStream.Position = 0;
using (StreamReader inputStream = new StreamReader(this.Request.InputStream))
{
jsonString = inputStream.ReadToEnd();
}
JSONRequest oneQuestion = JsonConvert.DeserializeObject<JSONRequest>(jsonString);
And that's it. You now have a JSONRequest
class containing the various fields which were POSTed to your server.
Python comes with numerous ways of formatting strings:
New style .format()
, which supports a rich formatting mini-language:
>>> temperature = 10
>>> print("the furnace is now {} degrees!".format(temperature))
the furnace is now 10 degrees!
Old style %
format specifier:
>>> print("the furnace is now %d degrees!" % temperature)
the furnace is now 10 degrees!
In Py 3.6 using the new f""
format strings:
>>> print(f"the furnace is now {temperature} degrees!")
the furnace is now 10 degrees!
Or using print()
s default sep
arator:
>>> print("the furnace is now", temperature, "degrees!")
the furnace is now 10 degrees!
And least effectively, construct a new string by casting it to a str()
and concatenating:
>>> print("the furnace is now " + str(temperature) + " degrees!")
the furnace is now 10 degrees!
Or join()
ing it:
>>> print(' '.join(["the furnace is now", str(temperature), "degrees!"]))
the furnace is now 10 degrees!
In javascript you can do it this way
radians = degrees * (Math.PI/180);
degrees = radians * (180/Math.PI);
just use a Button with android:drawableRight properties like this:
<Button android:id="@+id/btnNovaCompra" android:layout_width="wrap_content"
android:text="@string/btn_novaCompra"
android:gravity="center"
android:drawableRight="@drawable/shoppingcart"
android:layout_height="wrap_content"/>
There seems to be multiple modules to do that, some are deprecated.
This one looks active:
https://github.com/jshttp/basic-auth
Here's a use example:
// auth.js
var auth = require('basic-auth');
var admins = {
'[email protected]': { password: 'pa$$w0rd!' },
};
module.exports = function(req, res, next) {
var user = auth(req);
if (!user || !admins[user.name] || admins[user.name].password !== user.pass) {
res.set('WWW-Authenticate', 'Basic realm="example"');
return res.status(401).send();
}
return next();
};
// app.js
var auth = require('./auth');
var express = require('express');
var app = express();
// ... some not authenticated middlewares
app.use(auth);
// ... some authenticated middlewares
Make sure you put the auth
middleware in the correct place, any middleware before that will not be authenticated.
The most likely explanations for that error are:
CreateProcess
requires you to provide an executable file. If you wish to be able to open any file with its associated application then you need ShellExecute
rather than CreateProcess
.Reading down to the bottom of the code, I can see that the problem is number 1.
The expression df1$id %in% idNums1
produces a logical vector. To negate it, you need to negate the whole vector:
!(df1$id %in% idNums1)
In case someone needs a more involved example on how to do cross-database queries, here's an example that cleans up the databasechangeloglock
table on every database that has it:
CREATE EXTENSION IF NOT EXISTS dblink;
DO
$$
DECLARE database_name TEXT;
DECLARE conn_template TEXT;
DECLARE conn_string TEXT;
DECLARE table_exists Boolean;
BEGIN
conn_template = 'user=myuser password=mypass dbname=';
FOR database_name IN
SELECT datname FROM pg_database
WHERE datistemplate = false
LOOP
conn_string = conn_template || database_name;
table_exists = (select table_exists_ from dblink(conn_string, '(select Count(*) > 0 from information_schema.tables where table_name = ''databasechangeloglock'')') as (table_exists_ Boolean));
IF table_exists THEN
perform dblink_exec(conn_string, 'delete from databasechangeloglock');
END IF;
END LOOP;
END
$$
It is easier to understand the use of the git commands add
and commit
if you imagine a log file being maintained in your repository on Github.
A typical project's log file for me may look like:
---------------- Day 1 --------------------
Message: Completed Task A
Index of files changed: File1, File2
Message: Completed Task B
Index of files changed: File2, File3
-------------------------------------------
---------------- Day 2 --------------------
Message: Corrected typos
Index of files changed: File3, File1
-------------------------------------------
...
...
...and so on
I usually start my day with a git pull
request and end it with a git push
request. So everything inside a day's record corresponds to what occurs between them. During each day, there are one or more logical tasks that I complete which require changing a few files. The files edited during that task are listed in an index.
Each of these sub tasks(Task A and Task B here) are individual commits. The git add
command adds files to the 'Index of Files Changed' list. This process is also called staging and in reality records changed files and the changes performed. The git commit
command records/finalizes the changes and the corresponding index list along with a custom message which may be used for later reference.
Remember that you're still only changing the local copy of your repository and not the one on Github. After this, only when you do a git push
do all these recorded changes, along with your index files for each commit, get logged on the main repository(on Github).
As an example, to obtain the second entry in that imaginary log file, I would have done:
git pull
# Make changes to File3 and File4
git add File3 File4
# Verify changes, run tests etc..
git commit -m 'Corrected typos'
git push
In a nutshell, git add
and git commit
lets you break down a change to the main repository into systematic logical sub-changes. As other answers and comments have pointed out, there are ofcourse many more uses to them. However, this is one of the most common usages and a driving principle behind Git being a multi-stage revision control system unlike other popular ones like Svn.
I thought that I might add this snippet to this old post. This is what I had done in the past, before the icons were fonts:
<i class="social-icon linkedin small" style="border-radius:7.5px;height:15px;width:15px;background-color:white;></i>
<i class="social-icon facebook small" style="border-radius:7.5px;height:15px;width:15px;background-color:white;></i>
This is very similar to @frbl 's sneaky answer, yet it does not use another image. Instead, this sets the background-color of the <i>
element to white
and uses the CSS property border-radius
to make the entire <i>
element "rounded." If you noticed, the value of the border-radius
(7.5px) is exactly half that of the width
and height
property (both 15px, making the icon square), making the <i>
element circular.
HTML5 has provided new attribute multiple for input element whose type attribute is file. So you can select multiple files and IE9 and previous versions does not support this.
NOTE: be carefull with the name of the input element. when you want to upload multiple file you should use array and not string as the value of the name attribute.
ex: input type="file" name="myPhotos[]" multiple="multiple"
and if you are using php then you will get the data in $_FILES and use var_dump($_FILES) and see output and do processing Now you can iterate over and do the rest
If your onclick function returns false the default browser behaviour is cancelled. As such:
<a href='http://www.google.com' onclick='return check()'>check</a>
<script type='text/javascript'>
function check()
{
return false;
}
</script>
Either way, whether google does it or not isn't of much importance. It's cleaner to bind your onclick functions within javascript - this way you separate your HTML from other code.
I was facing the same problem, and I found the solution. There are issues in allocation of MaxPermSize. If you try to allocate more than your machine's free space then it gives this error in my issue. So try to reduce MaxPermSize.
I think it will help you to sort out your issue.
sed is a much better tool for the job: sed -n '/re/,$p' file
where re is regexp.
Another option is grep's --after-context flag. You need to pass in a number to end at, using wc on the file should give the right value to stop at. Combine this with -n and your match expression.
{{app.session}}
refers to the Session
object and not the $_SESSION
array. I don't think the $_SESSION
array is accessible unless you explicitly pass it to every Twig template or if you do an extension that makes it available.
Symfony2 is object-oriented, so you should use the Session
object to set session attributes and not rely on the array. The Session
object will abstract this stuff away from you so it is easier to, say, store the session in a database because storing the session variable is hidden from you.
So, set your attribute in the session and retrieve the value in your twig template by using the Session
object.
// In a controller
$session = $this->get('session');
$session->set('filter', array(
'accounts' => 'value',
));
// In Twig
{% set filter = app.session.get('filter') %}
{% set account-filter = filter['accounts'] %}
Hope this helps.
Regards,
Matt
.dmp files are dumps of oracle databases created with the "exp" command. You can import them using the "imp" command.
If you have an oracle client intalled on your machine, you can executed the command
imp help=y
to find out how it works. What will definitely help is knowing from wich schema the data was exported and what the oracle version was.
there is no need to set git ssl verification to set to false. It is caused when the system does not have the all CA authority certificates. Mostly people who have genuine SSL certificate missing the intermediate certificate.
Just adding the complete text of intermediate certificate (whole chain of missing CA and intermediate certificate) to
sudo gedit /etc/ssl/certs/ca-certificates.crt
works without running the update-ca-certificates
.
Same goes for manually generated certificates, just add the CA certificate text.
At the end : Push successful: Everything is up-to-date
Just in case anyone still stumbles upon this old question:
The code was theoretically almost correct in a sense, the problem was the use of $('this') instead of $(this), therefore telling jQuery to look for a tag.
$(document).ready(function(){
$("#frame").click(function () {
$(this).load("http://www.google.com/");
});
});
The script itself woudln't work as it is right now though because the load() function itself is an AJAX function, and google does not seem to specifically allow the use of loading this page with AJAX, but this method should be easy to use in order to load pages from your own domain by using relative paths.
In my case, I was looping through a series of objects from an XML file, but some of the instances apparently were not objects which was causing the error. Checking if the object was empty before processing it fixed the problem.
In other words, without checking if the object was empty, the script would error out on any empty object with the error as given below.
Trying to get property of non-object
For Example:
if (!empty($this->xml_data->thing1->thing2))
{
foreach ($this->xml_data->thing1->thing2 as $thing)
{
}
}
A mutex is a mutual exclusion object, similar to a semaphore but that only allows one locker at a time and whose ownership restrictions may be more stringent than a semaphore.
It can be thought of as equivalent to a normal counting semaphore (with a count of one) and the requirement that it can only be released by the same thread that locked it(a).
A semaphore, on the other hand, has an arbitrary count and can be locked by that many lockers concurrently. And it may not have a requirement that it be released by the same thread that claimed it (but, if not, you have to carefully track who currently has responsibility for it, much like allocated memory).
So, if you have a number of instances of a resource (say three tape drives), you could use a semaphore with a count of 3. Note that this doesn't tell you which of those tape drives you have, just that you have a certain number.
Also with semaphores, it's possible for a single locker to lock multiple instances of a resource, such as for a tape-to-tape copy. If you have one resource (say a memory location that you don't want to corrupt), a mutex is more suitable.
Equivalent operations are:
Counting semaphore Mutual exclusion semaphore
-------------------------- --------------------------
Claim/decrease (P) Lock
Release/increase (V) Unlock
Aside: in case you've ever wondered at the bizarre letters used for claiming and releasing semaphores, it's because the inventor was Dutch. Probeer te verlagen means to try and decrease while verhogen means to increase.
(a) ... or it can be thought of as something totally distinct from a semaphore, which may be safer given their almost-always-different uses.
If using TFS, performing a Get latest (recursive) doesn't always work. Instead, I force a get latest by clicking Source control => Get specific version then clicking both boxes. This tends to work.
If it still doesn't work then deleting the suo file (usually found in the same place as the solution) forces visual studio to get all the files from the source (and subsequently rebuild the suo file).
If that doesn't work then try closing all your open files and closing Visual studio. When you next open Visual studio it should be fixed. There is a resharper bug that is resolved this way.
For clarity in this topic, a few points really should be made:
Sharpening images is an ill-posed problem. In other words, blurring is a lossy operation, and going back from it is in general not possible.
To sharpen single images, you need to somehow add constraints (assumptions) on what kind of image it is you want, and how it has become blurred. This is the area of natural image statistics. Approaches to do sharpening hold these statistics explicitly or implicitly in their algorithms (deep learning being the most implicitly coded ones). The common approach of up-weighting some of the levels of a DOG or Laplacian pyramid decomposition, which is the generalization of Brian Burns answer, assumes that a Gaussian blurring corrupted the image, and how the weighting is done is connected to assumptions on what was in the image to begin with.
Other sources of information can render the problem sharpening well-posed. Common such sources of information is video of a moving object, or multi-view setting. Sharpening in that setting is usually called super-resolution (which is a very bad name for it, but it has stuck in academic circles). There has been super-resolution methods in OpenCV since a long time.... although they usually dont work that well for real problems last I checked them out. I expect deep learning has produced some wonderful results here as well. Maybe someone will post in remarks on whats worthwhile out there.
However the cmd/batch version works you can run into an issue when you want to define an eventID which is higher then 1000. For event creation with an eventID of 1000+ i'll use powershell like this:
$evt=new-object System.Diagnostics.Eventlog(“Define Logbook”)
$evt.Source=”Define Source”
$evtNumber=Define Eventnumber
$evtDescription=”Define description”
$infoevent=[System.Diagnostics.EventLogEntryType]::Define error level
$evt.WriteEntry($evtDescription,$infoevent,$evtNumber)
Sample:
$evt=new-object System.Diagnostics.Eventlog(“System”)
$evt.Source=”Tcpip”
$evtNumber=4227
$evtDescription=”This is a Test Event”
$infoevent=[System.Diagnostics.EventLogEntryType]::Warning
$evt.WriteEntry($evtDescription,$infoevent,$evtNumber)
The difference between the commands is that one provides you with a tag message while the other doesn't. An annotated tag has a message that can be displayed with git-show(1), while a tag without annotations is just a named pointer to a commit.
According to the documentation: "To create a lightweight tag, don’t supply any of the -a, -s, or -m options, just provide a tag name". There are also some different options to write a message on annotated tags:
git tag <tagname>
, Git will create a tag at the current revision but will not prompt you for an annotation. It will be tagged without a message (this is a lightweight tag).git tag -a <tagname>
, Git will prompt you for an annotation unless you have also used the -m flag to provide a message.git tag -a -m <msg> <tagname>
, Git will tag the commit and annotate it with the provided message.git tag -m <msg> <tagname>
, Git will behave as if you passed the -a flag for annotation and use the provided message.Basically, it just amounts to whether you want the tag to have an annotation and some other information associated with it or not.
It seems that the latest function for this in windows 7 is robocopy.
Usage example:
robocopy <source> <destination> /e /xf <file to exclude> <another file>
/e copies subdirectories including empty ones, /xf excludes certain files from being copied.
More options here: http://technet.microsoft.com/en-us/library/cc733145(v=ws.10).aspx
this is how i did it:
String[] listAges = getResources().getStringArray(R.array.ages);
// Creating adapter for spinner
ArrayAdapter<String> dataAdapter =
new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, listAges);
// Drop down layout style - list view with radio button
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// attaching data adapter to spinner
spinner_age.getBackground().setColorFilter(ContextCompat.getColor(this, R.color.spinner_icon), PorterDuff.Mode.SRC_ATOP);
spinner_age.setAdapter(dataAdapter);
spinner_age.setSelection(0);
spinner_age.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
String item = parent.getItemAtPosition(position).toString();
if(position > 0){
// get spinner value
Toast.makeText(parent.getContext(), "Age..." + item, Toast.LENGTH_SHORT).show();
}else{
// show toast select gender
Toast.makeText(parent.getContext(), "none" + item, Toast.LENGTH_SHORT).show();
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
I believe the original question said:
a character belongs to a list/array of invalid characters
and not:
belongs to a null-terminated string
which, if it did, then strchr
would indeed be the most suitable answer. If, however, there is no null termination to an array of chars or if the chars are in a list structure, then you will need to either create a null-terminated string and use strchr
or manually iterate over the elements in the collection, checking each in turn. If the collection is small, then a linear search will be fine. A large collection may need a more suitable structure to improve the search times - a sorted array or a balanced binary tree for example.
Pick whatever works best for you situation.