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For this lesson we are only concerned with passing data between activities without making them persistent so we’ll look at the two simplest ways to achieve that which are by using Static methods and IntentsUsing Static methodsThis example demonstrate about Passing data between activities in Android using Static methods.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. Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.content.Intent; import ... Read More
In this tutorial we will be focussing on how to send text message from your iOS application in Swift, where we will be sending a text message from your user’s phone number. While we cannot do this directly without the content of your user’s but we can display a precomposed message for the user to send which user can modify later if he wants to.So let’s get started, We will be using “MFMessageComposeViewController” class object to display the standard message composition interface inside your application.Before we present the composition interface, we will populate the fields with the basic initial message ... Read More
Let us first create a table. Within that we have set a column with type TIME to get the login time −mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, LoginTime TIME NULL ); Query OK, 0 rows affected (0.69 sec)Insert records in the table using insert command −mysql> insert into DemoTable(LoginTime) values('12:34:45'); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable(LoginTime) values('13:56:01'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable(LoginTime) values('04:12:23'); Query OK, 1 row affected (0.13 sec)Following is the query to display all records from the table using ... Read More
The configparser module from Python's standard library defines functionality for reading and writing configuration files as used by Microsoft Windows OS. Such files usually have .INI extension.The INI file consists of sections, each led by a [section] header. Between square brackets, we can put the section’s name. Section is followed by key/value entries separated by = or : character. It may include comments, prefixed by # or ; symbol. A sample INI file is shown below −[Settings] # Set detailed log for additional debugging info DetailedLog=1 RunStatus=1 StatusPort=6090 StatusRefresh=10 Archive=1 # Sets the location of the MV_FTP log file LogFile=/opt/ecs/mvuser/MV_IPTel/log/MV_IPTel.log ... Read More
This example demonstrate about How to get programmatically android serial number.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 serial number.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.Manifest; import android.app.ProgressDialog; import android.content.pm.PackageManager; 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.view.View; import android.webkit.CookieManager; import android.webkit.WebChromeClient; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.EditText; import ... Read More
When there are more than one user who desire to access a shared network channel, an algorithm is deployed for channel allocation among the competing users. Dynamic channel allocation encompasses the channel allocation schemes where channels are allotted to users dynamically as per their requirements, from a central pool.Working PrincipleIn dynamic channel allocation schemes, frequency channels are not permanently allotted to any user. Channels are assigned to the user as needed depending upon the network environment. The available channels are kept in a queue or a spool. The allocation of the channels is temporary. Distribution of the channels to the ... Read More
Using the add() method, insert the specified element at the specified position in the CopyOnWriteArrayList.The syntax is as followsvoid add(int index, E ele)Here, the parameter index is where you want to insert the element and ele is the element to be inserted to this list. To work with CopyOnWriteArrayList class, you need to import the following packageimport java.util.concurrent.CopyOnWriteArrayList;The following is an example to add elements in the CopyOnWriteArrayList class in JavaExample Live Demoimport java.util.concurrent.CopyOnWriteArrayList; public class Demo { public static void main(String[] args) { CopyOnWriteArrayList arrList = new CopyOnWriteArrayList(); arrList.add(100); arrList.add(250); ... Read More
The list of different units that are supported by a duration can be obtained using the method getUnits() in the Duration class in Java. This method requires no parameters and it returns the list of different units that are supported by a duration.A program that demonstrates this is given as follows −Example Live Demoimport java.time.Duration; public class Demo { public static void main(String[] args) { Duration d = Duration.ofSeconds(5); System.out.println("The duration is: " + d); System.out.println("The units are: " + d.getUnits()); } }OutputThe duration is: PT5S The units are: [Seconds, ... Read More
Let us see an example and create a table first.mysql> create table Add1ToExistingValue -> ( -> Value int -> ); Query OK, 0 rows affected (0.56 sec)Insert some records in the table using insert command.The query is as followsmysql> insert into Add1ToExistingValue values(10); Query OK, 1 row affected (0.12 sec) mysql> insert into Add1ToExistingValue values(13); Query OK, 1 row affected (0.15 sec) mysql> insert into Add1ToExistingValue values(15); Query OK, 1 row affected (0.13 sec) mysql> insert into Add1ToExistingValue values(16); Query OK, 1 row affected (0.14 sec) mysql> insert into Add1ToExistingValue values(20); Query OK, 1 row affected (0.16 sec) mysql> insert into Add1ToExistingValue values(40); Query OK, 1 row affected (0.15 sec) mysql> insert into Add1ToExistingValue values(50); Query OK, 1 row affected (0.11 sec) mysql> insert into Add1ToExistingValue values(55); Query OK, 1 row affected (0.17 sec) mysql> insert into Add1ToExistingValue values(56); Query OK, 1 row affected (0.17 sec)Display all records from the table using select statement.The query is as followsmysql> select *from Add1ToExistingValue;The following is the output+-------+ | Value | +-------+ | 10 ... Read More
The localhost means you can access from same machine while from % the remote host access is possible. The syntax is as follows to change the user password.SET PASSWORD FOR 'yourUserName'@'localhost' ='yourPassword';First check the user and host from MySQL.user table. The query is as follows −mysql> select user, host from MySQL.user;Here is the output −+------------------+-----------+ | user | host | +------------------+-----------+ | Bob | % | | Manish | % ... Read More