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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to sort an array elements in android?
This example demonstrate about How to sort an array elements in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken text view to sorted array.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.widget.TextView; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { TextView text; int temp; int[] ...
Read MoreSynchronization and Pooling of processes in Python
Synchronization between processesMultiprocessing is a package which supports spawning processes using an API. This package is used for both local and remote concurrencies. Using this module, programmer can use multiple processors on a given machine. It runs on Windows and UNIX os.All equivalent synchronization primitives are present in this package.Example codefrom multiprocessing import Process, Lock def my_function(x, y): x.acquire() print ('hello world', y) x.release() if __name__ == '__main__': lock = Lock() for num in range(10): Process(target= my_function, args=(lock, num)).start()Here one instance can lock ...
Read MoreHow to check edit text values are Anagram or Not in android?
This example demonstrate about How to check edit text values are Anagram or Not in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken two edit texts to take the data from the user and when user click on a button it will give the result on toast.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import ...
Read MoreShow constraints on table command in MySQL?
You can show constraints on tables with the help of SHOW command. The syntax is as follows −show create table yourTableName;The above command will show all constraints with table ENGINE. Using this, you can even see all the column names and corresponding data types.To understand the above MySQL statement, let us first create a table −mysql> create table ShowConstraintsDemo -> ( -> BookId int not null, -> BookName varchar(200) not null, -> BookAuthor varchar(200) Unique not null, -> Primary key(BookId, BookName) -> ); Query OK, 0 rows affected (1.04 sec)Now you can apply the above syntax in order ...
Read MoreHow to valid textview data is only digits in android?
This example demonstrate about How to valid textview data is only digits in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken a text view to show digits.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.Manifest; import android.content.pm.PackageManager; import android.location.Address; import android.location.Geocoder; import android.location.Location; import android.location.LocationManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import android.text.TextUtils; import android.widget.TextView; import ...
Read MoreMultiprocessing In Python
The multiprocessing package supports spawning processes. It refers to a function that loads and executes a new child processes. For the child to terminate or to continue executing concurrent computing, then the current process hasto wait using an API, which is similar to threading module.IntroductionWhen we work with Multiprocessing, at first we create process object. Then it calls a start() method.Example codefrom multiprocessing import Process def display(): print ('Hi !! I am Python') if __name__ == '__main__': p = Process(target=display) p.start() p.join()In this example, ...
Read MoreHow to print current package name in android?
This example demonstrate about How to print current package name in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken a text view to show the current package name.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; import java.security.Security; import java.util.Locale; public class MainActivity extends AppCompatActivity { TextView textView; ...
Read MoreHow to print current package cache directory information in android?
This example demonstrate about How to print current package cache directory information in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken text view to show current package cache information.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; import java.security.Security; import java.util.Locale; public class MainActivity extends AppCompatActivity { TextView textView; ...
Read MoreHow to print application base apk path in android?
This example demonstrate about How to print application base apk path in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken text view to show the current application base apk path .Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; import java.security.Security; import java.util.Locale; public class MainActivity extends AppCompatActivity { ...
Read MoreWhat do column flags mean in MySQL Workbench?
In MySQL Workbench, column flags can be used with a column to maintain integrity. The column flags are as follows −PK − Primary KeyNN − NOT NULLBIN − BinaryUN − UnsignedUQ − UniqueZF − Zero FilledG − Generate ColumnAI − Auto IncrementLet us learn about them one by one −PKThis stands for the primary key. It can be used to make the column as a primary key.NNIt is for NOT NULL. Used to enforce the column that it will not insert a NULL value.BINThis stands for Binary. This can be used to store data as a binary string.UNIt is for ...
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