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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to send message from firebase console after creation project?
Open your firebase page (https://console.firebase.google.com/) as shown below –Now select your project. In our case we have tutorialspoint project. It will direct to console page of project as shown below –Now scroll down right side menu to grow as shown below –In Grow tab select Cloud messaging as shown below –Now click on new notification button. It will redirect to compose message button as shown below –Now write your message as shown below –Now click on next to go target tab. Now select project as shown below –Now click on next button to go schedule as shown below –Now click ...
Read MoreWrite a MySQL query where length of the records is longer than 1?
Here, we will use OCTET_LENGTH to check the length of a record since we want the records with length more than 1. Let us first create a table −mysql> create table DemoTable ( UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, UserName varchar(20), UserGender varchar(20) ); Query OK, 0 rows affected (0.55 sec)Insert some records in the table using insert command −mysql> insert into DemoTable(UserName, UserGender) values('John', 'M'); Query OK, 1 row affected (0.82 sec) mysql> insert into DemoTable(UserName, UserGender) values('Carol', 'Male'); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable(UserName, UserGender) values('Mia', 'Female'); Query OK, ...
Read More8086 program to find Square Root of a number
In this program we will see how to find the square root of a number.Problem StatementWrite 8086 Assembly language program to find the square root of a number. The number is stored at memory offset 500. Finally store the result at memory offset 600.DiscussionTo find the square root here at first we are clearing the counter register. In each iteration we are increasing BX register by 2. At first we need BX = 0001. So we are initializing it to FFFFH, after adding 2, it will be 0001H. In each iteration the counter value is increased, and subtract the BX ...
Read MoreWhat are the different quote marks of MySQL?
You can use backticks and single quotes in MySQL. The backtick can be used around the column name and table name while single quotes can be used for the column name values.Let us take an example for both the quote marks. To understand the above syntax, let us create a table. The query to create a table is as follows −mysql> create table QuotesDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> UserName varchar(20), -> UserAge int -> ); Query OK, 0 rows affected (2.53 sec)Insert some records in the table using ...
Read MoreWhat is errorPage attribute in JSP?
The errorPage attribute tells the JSP engine which page to display if there is an error while the current page runs. The value of the errorPage attribute is a relative URL.The following directive displays MyErrorPage.jsp when all uncaught exceptions are thrown −The isErrorPage attribute indicates that the current JSP can be used as the error page for another JSP.The value of isErrorPage is either true or false. The default value of the isErrorPage attribute is false.For example, handleError.jsp sets the isErrorPage option to true because it is supposed to handle errors −
Read MoreAlter row_format to dynamic in MySQL?
To alter row_format to dynamic in MySQL, following is the syntax:ALTER TABLE yourTableName ROW_FORMAT=DYNAMIC;Let us first create a table:mysql> create table DemoTable ( CustomerId int NOT NULL AUTO_INCREMENT PRIMARY KEY, CustomerName varchar(200), CustomerAge int, CustomerAddress varchar(200) ); Query OK, 0 rows affected (0.73 sec)Let us check the description of table using DESC command:mysql> desc DemoTable;This will produce the following output:+-----------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra ...
Read More8086 program to find the square root of a perfect square root number
In this program we will see how to find the square root of a perfect squared.Problem StatementWrite 8086 Assembly language program to find the square root of a perfect squared number. The number is stored at memory address 3000. Finally store the result at memory address 3002.DiscussionFor the perfect square number starting from 0 we are performing square of it, then check whether it is same as the given number or not. If they are same then the current value will be the square root.For a number 51H (81D), we will check 02, 12, 22, ….. , 92. After 92 ...
Read MoreHow to create digital clock with textview in android?
This example demonstrates How to create digital clock with textview 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 textview. It will show clock with blink animation as we see in normal digital clock.Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Bundle; import android.os.Handler; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; public ...
Read MoreWhat are important server response headers that are useful in web programming?
Following is a summary of the most useful HTTP 1.1 response headers which go back to the browser from the web server. These headers are frequently used in web programming −Sr.No.Header & Description1AllowThis header specifies the request methods (GET, POST, etc.) that the server supports.2Cache-ControlThis header specifies the circumstances in which the response document can safely be cached. It can have values public, private or no-cache etc. Public means document is cacheable, Private means document is for a single user and can only be stored in private (nonshared) caches and no-cache means document should never be cached.3ConnectionThis header instructs the ...
Read MoreHow to Use Android loader?
This example demonstrate about How to Use Android loaderStep 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. ss In the above code, we have taken listview to show contact names.Step 3 − Add the following code to src/MainActivity.java import android.Manifest; import android.content.CursorLoader; import android.content.Loader; import android.content.pm.PackageManager; import android.database.Cursor; import android.os.Bundle; import android.provider.ContactsContract; import android.support.v4.app.ActivityCompat; import android.support.v4.app.FragmentActivity; import android.support.v4.content.ContextCompat; import android.support.v4.widget.SimpleCursorAdapter; import android.widget.ListView; public class MainActivity extends FragmentActivity implements android.app.LoaderManager.LoaderCallbacks { private ...
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