Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
How to read a txt file in external storage with runtime permission in android?
This example demonstrates How to read a txt file in external storage with runtime permission in android (we have already created a folder called text and sample txt file in external storage).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 textview and button. When user click on button, it will take data from external storage and append the data to text view.Step 3 ...
Read MoreHow to save cache in local storage of android webview?
This example demonstrate about How to save cache in local storage of android webview.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 web view to show facebook.com.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.app.ProgressDialog; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.webkit.WebChromeClient; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.EditText; public class MainActivity extends AppCompatActivity ...
Read MoreHow to verify action bar is showing or not in android?
This example demonstrates How to verify an action bar is showing 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 text view to action bar status.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.annotation.SuppressLint; import android.app.ActivityManager; import android.app.admin.DevicePolicyManager; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.view.MenuItem; import ...
Read MoreGlobal memory management in C++ : Stack or Heap?
Stack and heap are used to store variables during the execution of the program and it also get destroyed.Global data structures or global variables are not consumed by stack or heap. They basically allocated in a fixed memory block, which remains unchanged.int a[10]; // located in a fixed memory block int main() { int main() { float *ptr = (int *)malloc(sizeof(float)10.0)); //use heap. } }
Read MoreHow to send data from one activity to another in Android without intent?
This example demonstrate about How to send data from one activity to another in Android without intent.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 android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.Button; import android.widget.EditText; public class MainActivity extends AppCompatActivity { private static String value; public static String getValue() { return value; ...
Read MoreHow to add separator to numbers using MySQL views?
Let us first create a table −mysql> create table DemoTable ( StudentId int ); Query OK, 0 rows affected (0.62 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(343898456); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable values(222333444); Query OK, 1 row affected (0.22 sec)Following is the query to display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output −+-----------+ | StudentId | +-----------+ | 343898456 | | 222333444 | +-----------+ 2 rows in set (0.00 sec)Here is the query to create view ...
Read MoreGeneration of .OBJ file using a cross-assembler
Generation of .OBJ file by using a cross-assembler:The file assembly language program file, e.g. MULT.ASM which is created by using an editor is simply a text file. We cannot execute this file directly. At first we have to assemble the file, and then we have to link it. The step of assembly the translation of the program of assembly language to machine code requires the generation of a .OBJ file.We have used some examples in the text of ‘2500 A.D i.e. the 8085 cross-assembler of version 4.01.In the prompt mode the translation is:We type ‘X8085’ just for performing the translation ...
Read MoreStatus check data transfer in 8085
Status check data transfer process is a much more complex process than simple data transfer. We use this method is used when there is lack of accurate knowledge of the Input Output device consisting of the timing characteristics. Status information is received by the processor regarding the readiness of the Input Output device for performing the data transfer. Generally, the processor is involved in the checking of the loop for the device to get ready. The device releases from the loop when the device is ready for use for the execution of the IN or OUT instruction which depends on ...
Read MoreHow to read an image file in external storage with runtime permission in android?
This example demonstrates How to read an image file in external storage with runtime permission 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 image view and button. When user click on button, it will take data from external storage and append the data to Image view.Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.content.pm.PackageManager; ...
Read MoreHow to check whether a stored procedure exist in MySQL?
Let us first create a stored procedure −mysql> DELIMITER // mysql> CREATE PROCEDURE ExtenddatesWithMonthdemo(IN date1 datetime, IN NumberOfMonth int ) -> BEGIN -> SELECT DATE_ADD(date1, INTERVAL NumberOfMonth MONTH) AS ExtendDate; -> END; -> // Query OK, 0 rows affected (0.20 sec) mysql> DELIMITER ;Now you check whether the stored procedure exists with the help SHOW CREATE command.The query is as follows −mysql> SHOW CREATE PROCEDURE ExtenddatesWithMonthdemo; The following is the output displaying the details of the stored procedure we created above: +--------------------------+--------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+ | Procedure | sql_mode ...
Read More