The TextInputLayout has a character counter for an EditText defined within it.
The counter will be rendered below the EditText.
Just use the setCounterEnabled() and setCounterMaxLength methods:
TextInputLayout til = (TextInputLayout) findViewById(R.id.username);
til.setCounterEnabled(true);
til...
With an input password type, you can also enable an icon that can show or hide the entire text using the passwordToggleEnabled attribute.
You can also customize same default using these attributes:
passwordToggleDrawable: to change the default eye icon
passwordToggleTint: to apply a tint to the...
int i;
int n = 1000000;
double area = 0;
double h = 1.0 / n;
#pragma omp parallel shared(n, h)
{
double thread_area = 0; // Private / local variable
#pragma omp for
for (i = 1; i <= n; i++)
{
double x = h * (i - 0.5);
thread_area += (4.0 / (1.0 ...
double area;
double h = 1.0 / n;
#pragma omp parallel for shared(n, h, area)
for (i = 1; i <= n; i++)
{
double x = h * (i - 0.5);
#pragma atomic
area += (4.0 / (1.0 + x*x));
}
pi = h * area;
In this example, each threads execute a subset of the iteration count and they accumula...
double area;
double h = 1.0 / n;
#pragma omp parallel for shared(n, h, area)
for (i = 1; i <= n; i++)
{
double x = h * (i - 0.5);
#pragma omp critical
{
area += (4.0 / (1.0 + x*x));
}
}
double pi = h * area;
In this example, each threads execute a subset of the iteratio...
int i;
int n = 1000000;
double area = 0;
double h = 1.0 / n;
#pragma omp parallel for shared(n, h) reduction(+:area)
for (i = 1; i <= n; i++)
{
double x = h * (i - 0.5);
area += (4.0 / (1.0 + x*x));
}
pi = h * area;
In this example, each threads execute a subset of the iteration...
Include using System.Numerics and add a reference to System.Numerics to the project.
using System;
using System.Numerics;
namespace Euler_25
{
class Program
{
static void Main(string[] args)
{
BigInteger l1 = 1;
BigInteger l2 = 1;
...
RAISERROR function will generate error in the TRY CATCH block:
DECLARE @msg nvarchar(50) = 'Here is a problem!'
BEGIN TRY
print 'First statement';
RAISERROR(@msg, 11, 1);
print 'Second statement';
END TRY
BEGIN CATCH
print 'Error: ' + ERROR_MESSAGE();
END CATCH
RAISERROR ...
RAISERROR with severity (second parameter) less or equal to 10 will not throw exception.
BEGIN TRY
print 'First statement';
RAISERROR( 'Here is a problem!', 10, 15);
print 'Second statement';
END TRY
BEGIN CATCH
print 'Error: ' + ERROR_MESSAGE();
END CATCH
After RAISER...
You can re-throw error that you catch in CATCH block using TRHOW statement:
DECLARE @msg nvarchar(50) = 'Here is a problem! Area: ''%s'' Line:''%i'''
BEGIN TRY
print 'First statement';
RAISERROR(@msg, 11, 1, 'TRY BLOCK', 2);
print 'Second statement';
END TRY
BEGIN CATCH
print...
You can throw exception in try catch block:
DECLARE @msg nvarchar(50) = 'Here is a problem!'
BEGIN TRY
print 'First statement';
THROW 51000, @msg, 15;
print 'Second statement';
END TRY
BEGIN CATCH
print 'Error: ' + ERROR_MESSAGE();
THROW;
END CATCH
Exception with be ...
The Java Collections Framework provides two related methods for all Collection objects:
size() returns the number of entries in a Collection, and
isEmpty() method returns true if (and only if) the Collection is empty.
Both methods can be used to test for collection emptiness. For example:
C...
MySQL does not support the FULL OUTER JOIN, but there are ways to emulate one.
Setting up the data
-- ----------------------------
-- Table structure for `owners`
-- ----------------------------
DROP TABLE IF EXISTS `owners`;
CREATE TABLE `owners` (
`owner_id` int(11) NOT NULL AUTO_INCREMENT,...
Let's say you have a library that returns callbacks, for example the fs module in NodeJS:
const fs = require("fs");
fs.readFile("/foo.txt", (err, data) => {
if(err) throw err;
console.log(data);
});
We want to convert it to a promise returning API, with bluebird - ...
You can convert a single function with a callback argument to a Promise-returning version with Promise.promisify, so this:
const fs = require("fs");
fs.readFile("foo.txt", (err, data) => {
if(err) throw err;
console.log(data);
});
becomes:
const promisify = requ...
In order to convert any callback API to promises assuming the promisify and promisifyAll version doesn't fit - you can use the promise constructor.
Creating promises generally means specifying when they settle - that means when they move to the fulfilled (completed) or rejected (errored) phase to i...
var firstItem = fetch("/api1").then(x => x.json());
var secondItem = fetch("/api2").then(x => x.json());
Promise.all([firstItem, secondItem]).spread((first, second) => {
// access both results here, both requests completed at this point
});
program typical_loop
use omp_lib
implicit none
integer, parameter :: N = 1000000, kd = kind( 1.d0 )
real( kind = kd ) :: sum, tbegin, wtime
integer :: i
sum = 0
tbegin = omp_get_wtime()
!$omp parallel do reduction( +: sum )
do i = 1, N
sum = ...
On a 8 cores Linux machine using GCC version 4.4, the C codes can be compiled and run the following way:
$ gcc -std=c99 -O3 -fopenmp loop.c -o loopc -lm
$ OMP_NUM_THREADS=1 ./loopc
Computing 1000000 cosines and summing them with 1 threads took 0.095832s
$ OMP_NUM_THREADS=2 ./loopc
Computing 100...
Ω-notation is used for asymptotic lower bound.
Formal definition
Let f(n) and g(n) be two functions defined on the set of the positive real numbers. We write f(n) = Ω(g(n)) if there are positive constants c and n0 such that:
0 ≤ c g(n) ≤ f(n) for all n ≥ n0.
Notes
f(n) = Ω(g(n)) means that f(n)...
