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 create JShell instance programmatically in Java 9?
JShell is an interactive tool introduced since Java 9. It is Java's first official REPL tool to create a simple programming environment in the command-line that reads the user's inputs, evaluates it, and prints the result.We can able to create a new JShell instance programmatically in Java language. JShell and its associated APIs can be found under jdk.jshell package. we can get a new instance for JShell by using the static method: create() of JShell class. The eval() method of JShell class used to add an expression to JShell instance. It returns a list of events triggered by the evaluation. ...
Read MoreWhat are the different shortcut keys in JShell in Java 9?
JShell is an interactive tool that allows us to execute the java code and getting immediate results. We quickly evaluate expressions or short algorithms without compiling or build it. We can execute expressions, classes, methods, variables, and etc with the help of the JShell tool.Below are some of the keyboard shortcut keys:Entrance - Validate the lineLeft arrow - Move left in the lineRight arrow - Move right in the lineCtrl-A - Move to the start of the lineCtrl-E- Move to the end of the lineAlt-B - Move left, word by wordAlt-F - Move right, word by wordDelete - Delete characters ...
Read MoreHow do I re-format datetime in MySQL?
To re-format datetime in MySQL, you can use DATE_FORMAT(). MySQL gives in the format yyyy-mm-dd.Let us first create a table −mysql> create table DemoTable1558 -> ( -> EmployeeJoiningDate datetime -> ); Query OK, 0 rows affected (1.10 sec)Insert some records in the table using insert command −mysql> insert into DemoTable1558 values(CURDATE()); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable1558 values(NOW()); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable1558 values('2018-01-10'); Query OK, 1 row affected (0.20 sec) mysql> insert into DemoTable1558 values('2017-12-31'); Query OK, 1 row affected (0.18 sec)Display all records from ...
Read MoreWhat is Project Jigsaw in Java 9?
The primary objective of the Jigsaw project is to introduce the modularity concept to create a module in Java 9 and then applying the same to JDK.Below are some of the benefits of Modularity(Jigsaw)Strong Encapsulation: The modules can access only those parts that can be available for use. Unless the package is explicitly exported into the module-info.java file, public classes in a package can't be public.Clear Dependencies: A module must declare about other modules that they are used through the required clause. The modules are combined in order to create a shorter runtime that can be scaled to comparatively smaller ...
Read MoreBootstrap complex form layout for combined vertical/inline fields with HTML
Bootstrap form for combined vertical/ inline fields − Left side Right side longer forms shorter forms shorter forms shorter forms shorter forms Right
Read MoreHow can I alter the color of an HTML5 canvas element using jQuery?
To alter the color of an HTML5 canvas, use −document.getElementById("ID").style.background = red;You can also try the following −var ctx = canvas.getContext('2d'); ctx.fillStyle = "#FF0000"; ctx.fill();
Read MoreExporting delivery unit based on time filter in SAP HANA
While export a delivery unit, you can restrict the export through “Filter by time” which means Information views, which are updated within the mentioned time interval will only be exported.After selecting Delivery unit from drop down list, you have to select checkbox and then enter the Time interval- From and To date.In below snapshot you can see we have highlighted “Filter by Time” option and user can select this checkbox to use time filter during export.
Read MoreHow can we create a MySQL view by using data from multiple tables?
MySQL UNION operator can combine two or more result sets hence we can use UNION operator to create a view having data from multiple tables. To understand this concept we are using the base tables ‘Student_info’ and ‘Student_detail’ having the following data −mysql> Select * from Student_info; +------+---------+------------+------------+ | id | Name | Address | Subject | +------+---------+------------+------------+ | 101 | YashPal | Amritsar | History | | 105 | Gaurav | Chandigarh | Literature | | 125 | Raman | Shimla | Computers | | 130 | Ram ...
Read MoreWhat are the different compilation modes of a module in Java 9?
A module is a container of packages and each module contains a module descriptor that includes module name, module dependencies, it means that the name of other modules depends on and name of the packages it exports that can be used only by modules that depend on it.module com.tutorialspoint.app { /** Modules upon which the module com.tutorialspoint.app depends on */ requires com.tutorialspoint.services; /** Packages exposed by this module which can be used by other modules */ exports com.tutorialspoint.app.util; }There are three different compilation modes provided by Java 9 Module: Legacy mode, single module mode, and multi-module mode.Compilation modes of ...
Read MoreSelect equal or nearest greater number from table in MySQL
Let us first create a table −mysql> create table DemoTable -> ( -> Value int -> ); Query OK, 0 rows affected (1.33 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(25); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values(75); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values(100); Query OK, 1 row affected (0.13 sec)Display all records from the table using select statement −mysql> select * from DemoTable;This will produce the following output −+-------+ | Value | +-------+ | 25 | | ...
Read More