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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to create a dialog with Neutral options?
This example demonstrate about How to create a dialog with Neutral options.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 button. When user click on button, it will show dialog.Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.content.DialogInterface; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AlertDialog; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.Toast; public class MainActivity extends AppCompatActivity { @RequiresApi(api = ...
Read MoreMySQL query to display all the fields that contain a capital letter?
To display all the fields that contain a capital letter, use the RLIKE that performs a pattern match of a string expression against a pattern.Let us first create a table −mysql> create table contains_capital_letterDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Name varchar(100) -> ); Query OK, 0 rows affected (1.42 sec)Following is the query to insert some records in the table using insert command −mysql> insert into contains_capital_letterDemo(Name) values('Larry'); Query OK, 1 row affected (0.17 sec) mysql> insert into contains_capital_letterDemo(Name) values('larry'); Query OK, 1 row affected (0.12 sec) mysql> ...
Read MoreJava Program to format LocalTimeDate as BASIC_ISO_DATE format
At first, set the date:LocalDateTime dateTime = LocalDateTime.of(2019, Month.SEPTEMBER, 6, 20, 10);Now, format the datetime as BASIC_ISO_DATE format:String str = dateTime.format(DateTimeFormatter.BASIC_ISO_DATE);Exampleimport java.time.LocalDateTime; import java.time.Month; import java.time.format.DateTimeFormatter; public class Demo { public static void main(String[] args) { LocalDateTime dateTime = LocalDateTime.of(2019, Month.SEPTEMBER, 6, 20, 10); System.out.println("DateTime = "+dateTime); String str = dateTime.format(DateTimeFormatter.BASIC_ISO_DATE); System.out.println("Formatted date = "+str); } }OutputDateTime = 2019-09-06T20:10 Formatted date = 20190906
Read MoreWhat MySQL databases do I have permissions on?
To check this, you can use SHOW command. The syntax is as follows −show grants\GLet us implement the above syntax to display the permissions you have −mysql> SHOW GRANTS\GThis will produce the following output −*************************** 1. row *************************** Grants for root@%: GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, RELOAD, SHUTDOWN, PROCESS, FILE, REFERENCES, INDEX, ALTER, SHOW DATABASES, SUPER, CREATE TEMPORARY TABLES, LOCK TABLES, EXECUTE, REPLICATION SLAVE, REPLICATION CLIENT, CREATE VIEW, SHOW VIEW, CREATE ROUTINE, ALTER ROUTINE, CREATE USER, EVENT, TRIGGER, CREATE TABLESPACE, CREATE ROLE, DROP ROLE ON *.* TO `root`@`%` WITH GRANT OPTION *************************** 2. row *************************** Grants for root@%: ...
Read MoreHow to add the JDBC MySQL driver to an Eclipse project?
To add the JDBC MySQL driver to an Eclipse project, you need to follow the below steps.The first step is as follows:Step1: Create a dynamic web project with some name in Eclipse.Step2: After pressing the Dynamic Web Project, a new window will open. Now give the project name. The screenshot is as follows:After clicking the Finish button, you will get a project structure. The screenshot is as follows:Therefore, I have a project name JDBCJarFiles and in WEB-INF, there is a lib folder. You can add JDBC jar files in lib folder. Now, paste the jar files here. The screenshot is as ...
Read MoreHow to enable webview zoom controls in android?
This example demonstrate about How to enable webview zoom controls 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 web view to show tutorialspoint.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.webkit.WebChromeClient; import android.webkit.WebView; import android.widget.EditText; public class MainActivity extends AppCompatActivity { @RequiresApi(api = Build.VERSION_CODES.P) @Override ...
Read MoreHow to use removeLastOccurrence() in android ConcurrentLinkedDeque?
Before getting into the example, we should know what ConcurrentLinkedDeque is, it is unbounded deque based on linked nodes. Multiple threads can access deque elements with safety.This example demonstrates about How to use removeLastOccurrence() in android ConcurrentLinkedDequeStep 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 ConcurrentLinkedDeque elements.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Build; import android.os.Bundle; ...
Read MoreMySQL search if more than one string contains special characters?
To search if strings contain special characters, you can use REGEXP. Following is the syntax −select * from yourTableName where yourColumnName REGEXP '[^a-zA-Z0-9]';Let us first create a table −mysql> create table specialCharactersDemo -> ( -> StudentId varchar(100) -> ); Query OK, 0 rows affected (0.58 sec)Insert records in the table using insert command. Following is the query −mysql> insert into specialCharactersDemo values('STU_1234'); Query OK, 1 row affected (0.15 sec) mysql> insert into specialCharactersDemo values('STU567'); Query OK, 1 row affected (0.14 sec) mysql> insert into specialCharactersDemo values('STU#1234'); Query OK, 1 row affected (0.13 sec) mysql> insert into specialCharactersDemo ...
Read MoreHow to match underscore in a MySQL String?
To match underscore in a MySQL string, you can use the below syntax −select *from yourTableName where yourColumnName LIKE '%\_%';Let us first create a table −mysql> create table DemoTable ( ClientId varchar(200) ); Query OK, 0 rows affected (0.79 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values('CLI_101'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('CLI1110'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values('_CLI102'); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values('CLI103_'); Query OK, 1 row affected (0.12 sec) mysql> insert into ...
Read MoreHow to use unmodifiableSet in Android?
This example demonstrate about How to use unmodifiableSet 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 name and record number as Edit text, when user click on save button it will store the data into arraylist. Click on refresh button to get the changes of listview.Step 3 ...
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