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Articles by Arjun Thakur
Page 58 of 75
What is Linkify Textview in android?
Before getting into the example we should know, what is linkify. Linkify is just like a Hyper link in HTML. Using that we can browse the content. Here is the simple solution to use linkify 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 XML, we have given a textview, textview contains text and web url link.Step 3 − Add the following code to src/MainActivity.javaimport android.os.Bundle; ...
Read MoreHow to retrieve a random row or multiple random rows in MySQL?
You can use RAND() method for this. To retrieve a random row, use the following syntaxSELECT *FROM yourTableName ORDER BY RAND() LIMIT yourIntegerNumber;To understand the above syntax, let us create a table. The query to create a table is as followsmysql> create table gettingRandomRow -> ( -> CustomerId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> CustomerName varchar(100) -> ); Query OK, 0 rows affected (0.45 sec)Insert some records in the table using insert command. The query is as follows −mysql> insert into gettingRandomRow(CustomerName) values('Chris'); Query OK, 1 row affected (0.14 sec) mysql> insert into gettingRandomRow(CustomerName) values('Robert'); ...
Read MoreFetch the value from Decade Tuple in Java
To fetch the value from Decade Tuple in Java, use the getAtX() method. Here, X represents the index value like getAt1() at index 1. This will return the element at index 1 in the Tuple.Let us first see what we need to work with JavaTuples. To work with Decade class in JavaTuples, you need to import the following packageimport org.javatuples.Decade;Note Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. Refer the below guide for ...
Read MoreHow can we maintain session between Web Client and Web Server?
Following are the few options to maintain the session between the Web Client and the Web Server −CookiesA webserver can assign a unique session ID as a cookie to each web client and for subsequent requests from the client they can be recognized using the received cookie.This may not be an effective way as the browser at times does not support a cookie. It is not recommended to use this procedure to maintain the sessions.Hidden Form FieldsA web server can send a hidden HTML form field along with a unique session ID as follows −This entry means that, when the ...
Read MoreOperators that cannot be overloaded in C++
In C++ we can overload some operators like +, -, [], -> etc. But we cannot overload any operators in it. Some of the operators cannot be overloaded. These operators are like below? “.” Member access or dot operator? “? : ” Ternary or conditional operator? “::” Scope resolution operator? “.*” Pointer to member operator? “sizeof” The object size operator? “typeid” Object type operatorThese operators cannot be overloaded because if we overload them it will make serious programming issues.For an example the sizeof operator returns the size of the object or datatype as an operand. This is evaluated by the ...
Read MoreHow to add a random number between 30 and 300 to an existing field in MySQL?
Let us first create a demo tablemysql> create table RandomNumberDemo -> ( -> MyNumber int -> ); Query OK, 0 rows affected (0.54 sec)Insert some records in the table using insert command. The query is as follows −mysql> insert into RandomNumberDemo values(17); Query OK, 1 row affected (0.20 sec) mysql> insert into RandomNumberDemo values(18); Query OK, 1 row affected (0.12 sec) mysql> insert into RandomNumberDemo values(29); Query OK, 1 row affected (0.49 sec)Display all records from the table using select statement. The query is as follows −mysql> select *from RandomNumberDemo;The following is the output+----------+ | MyNumber | ...
Read MoreWhat is a config Object in JSP?
The config object is an instantiation of javax.servlet.ServletConfig and is a direct wrapper around the ServletConfig object for the generated servlet.This object allows the JSP programmer access to the Servlet or JSP engine initialization parameters such as the paths or file locations etc.The following config method is the only one you might ever use, and its usage is trivial −config.getServletName();This returns the servlet name, which is the string contained in the element defined in the WEB-INF\web.xml file.
Read More8086 program to subtract two 8 bit BCD numbers
In this program we will see how to subtract two 8-bit BCD numbers.Problem StatementWrite 8086 Assembly language program to subtract two 8-bit BCD number stored in memory address offset 600.DiscussionThis task is too simple. Here we are taking the numbers from memory and after adding we need to put DAS instruction to adjust the accumulator content to decimal form after the subtraction operation. The DAS will check the AC and CY flags to adjust a number to its decimal form.InputAddressData……5009950125…… Flow Diagram Program OutputAddressData……6007460100……
Read MoreBest way to store weekly event in MySQL?
Let us see the best way to store weekly events in MySQL. For that, first create a new table and include fields for every day as well.mysql> create table WeeklyEventDemo -> ( -> ID int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> EventName varchar(20), -> Monday tinyint(1), -> Tuesday tinyint(1), -> Wednesday tinyint(1), -> Thursday tinyint(1), -> Friday tinyint(1), -> Saturday tinyint(1), -> Sunday tinyint(1), -> StartDate date, ...
Read MoreResolve error 1045 (28000) access denied for user 'root'@'localhost' (using password: YES)?
To fix this error, you need to specify the -p option for password.The syntax is as followsmysql -uyourUserName -pLet us implement it.First, we need to open CMD using Windows+R shortcut keys. The snapshot is as followsType CMD and press OK button. You will get a command prompt.The snapshot is as followsNow reach the MySQL bin directory.The snapshot is as followsNow use the syntax discussed in the beginning.The command is as follows
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