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app\Exceptions\Handler.php public function render($request, Exception $exception) { if ($exception instanceof ModelNotFoundException) { abort(404); } return parent::render($request, $exception); } You can catch / handle any exception that is thrown in Laravel.

Lets have a look at the native app lifecycle methods for different platforms. Android. //Xamarin.Forms.Platform.Android.FormsApplicationActivity lifecycle methods: protected override void OnCreate(Bundle savedInstanceState); protected override void OnDestroy(); protected override void OnPause()...

<?xml version="1.0" encoding="UTF-8"?> 4.0.0 <groupId>Project name</groupId> <artifactId>MulitClients</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>junit<...

Here is a simple proof by induction. Require Import Coq.Setoids.Setoid. Require Import Coq.Arith.Lt. (* A number is less than or equal to itself *) Theorem aLTEa : forall a, a <= a. auto with arith. (* This follows by simple arithmetic *) Qed. Theorem simplALTE : forall a ...

In Coq, destruct more or less corresponds to a case analysis. It is similar to induction except that there's no induction hypothesis. Here is a (admittedly rather trivial) example of this tactic: Require Import Coq.Arith.Lt. Theorem atLeastZero : forall a, 0 <= a. Proof. intros. destr...

Problems may happen when multiple threads try to access a resource. For a simple example, suppose we have a thread that adds one to a variable. It does this by first reading the variable, adding one to it, then storing it back. Suppose we initialize this variable to 1, then create two instances of t...

from Queue import Queue question_queue = Queue() for x in range(1,10): temp_dict = ('key', x) question_queue.put(temp_dict) while(not question_queue.empty()): item = question_queue.get() print(str(item)) Output: ('key', 1) ('key', 2) ('key', 3) ('key', 4) ('key'...

double res[MAX]; int i; #pragma omp parallel { #pragma omp for for (i=0;i< MAX; i++) { res[i] = huge(); } } The for loop will be executed in parallel. huge() is some method which can take too long to get execute. OpenMP supports a shortcut to write the ab...

#include <omp.h> void main () { int i; double ZZ, func(), res=0.0; #pragma omp parallel for reduction(+:res) private(ZZ) for (i=0; i< 1000; i++){ ZZ = func(I); res = res + ZZ; } } In the last line: Actually added to a private ...

Sample Example Taken from one benchmarking import ijson def load_json(filename): with open(filename, 'r') as fd: parser = ijson.parse(fd) ret = {'builders': {}} for prefix, event, value in parser: if (prefix, event) == ('builders', 'map_key'): ...

At the end of the document add the following: \bibliographystyle{style} \bibliography{file location} Create a file with extension .bib and save the citation as follows: @inproceedings{citation_name, title={Paper Title}, author={List Authors}, pages={45--48}, year={2013}, organizat...

use Text::CSV; # Can use Text::CSV which will switch to _XS if installed $sep_char = ","; my $csv = Text::CSV->new({sep_char => $sep_char}); my $line = q{"a quoted, comma", word1, word2}; $csv->parse($line); my @fields = $csv->fields(); print join("\n"...

In our last two examples, numpy assumed that a[0,:] was the first vector, a[1,:] the second, and a[2,:] the third. Numpy.cross has an optional argument axisa that allows us to specify which axis defines the vectors. So, >>> a=np.array([[1,1,1],[0,1,0],[1,0,-1]]) >>> b=np.array([0...

Using immutable locals: Uses less horizontal space but more vertical space than the "anonymous temporaries" template. Preferable over the "anonymous temporaries" template if the when expression is in a loop--in that case, regex definitions should be placed outside the loop. im...

Declare @userList Table(UserKey VARCHAR(60)) Insert into @userList values ('bill'),('jcom'),('others') --Declared a table variable and insert 3 records Declare @text XML Select @text = ( select UserKey from @userList for XML Path('user'), root('group') ) --Set the XML value from ...

CREATE TABLE mytable (number INT); INSERT INTO mytable VALUES (1); CREATE MATERIALIZED VIEW myview AS SELECT * FROM mytable; SELECT * FROM myview; number -------- 1 (1 row) INSERT INTO mytable VALUES(2); SELECT * FROM myview; number -------- 1 (1 row) REFRESH ...

Java code: public class StdioApplication { public static void main(String[] args) { new ClassPathXmlApplicationContext("classpath:spring/integration/stackoverflow/stdio/stdio.xml"); } } Xml config file <?xml version="1.0" encoding="UTF-8"?&...

using System; using System.Speech.Synthesis; using System.Windows; namespace Stackoverflow.SpeechSynthesisExample { public partial class SpeechSynthesisSample : Window { public SpeechSynthesisSample() { InitializeComp...

Prerequiste steps: Get dotnet core for your platform: Dotnet Core Follow instructions and make sure dotnet core is working Get Visual Studio Code for your platform: VS Code Launch Visual Studio Code (VS code) and install the C# extension then reload Create self hosted NancyFx project: ...

The following statement if (conditionA && conditionB && conditionC) //... is exactly equivalent to bool conditions = conditionA && conditionB && conditionC; if (conditions) // ... in other words, the conditions inside the "if" statement just form an...