Tutorial by Examples: p

A simple entity: Using Lombok @Getter and @Setter annotations to generate getters and setters for us @Entity @Getter @Setter public class Message { @Id @GeneratedValue(generator = "system-uuid") @GenericGenerator(name = "system-uuid", strategy = "uuid...

In order to expose Thymeleaf templates we need to define controllers. Example: @Controller @RequestMapping("/") public class MessageController { @Autowired private MessageRepository messageRepository; @GetMapping public ModelAndView index() { It...

Html.TextBox() @Html.TextBox("Name", null, new { @class = "form-control" }) output:<input class="form-control" id="Name"name="Name"type="text"value=""/> @Html.TextBox("Name", "Stack Overflow", new { ...

First, install ipset if needed. Please refer to your distribution to know how to do it. As an example, here is the command for Debian-like distributions. $ apt-get update $ apt-get install ipset Then create a configuration file to define an ipset containing the IPs for which you want to open ac...

Work in progress

Let's say we want to eliminate duplicated subsequence element from a string (it can be more than one). For example: 2,14,14,14,19 and convert it into: 2,14,19 Using gsub, we can achieve it: gsub("(\\d+)(,\\1)+","\\1", "2,14,14,14,19") [1] "2,14,19" ...

iex(1)> [x, y] = ["String1", "String2"] iex(2)> "#{x} #{y}" # "String1 String2"

The typeid keyword is a unary operator that yields run-time type information about its operand if the operand's type is a polymorphic class type. It returns an lvalue of type const std::type_info. Top-level cv-qualification are ignored. struct Base { virtual ~Base() = default; }; struct Deri...

Instead of invoking the Angular’s bootstrap code directly, wrap the bootstrap code into a function and export the function. This function can also accept parameters. import { platformBrowserDynamic } from "@angular/platform-browser-dynamic"; import { AppModule } from "./src/app&quot...

Abstract Class : package base; /* Abstract classes cannot be instantiated, but they can be subclassed */ public abstract class ClsVirusScanner { //With One Abstract method public abstract void fnStartScan(); protected void fnCheckForUpdateVersion(){ System....

Navigate to project's app module and create libs directory. Place your .aar file there. For example myLib.aar. Add the code below to android block of app level's build.gradle file. repositories { flatDir { dirs 'libs' } } This way you defined a new ext...

Objectives: Using the Spring CLI, we will create a new Spring Boot application to be deployed to Elastic Beanstalk. We will edit the generated Spring Boot application so that it will: Create a jar named aws-eb-demo.jar. Listen on port 5000. Include a single web page named index.html. ...

Code echo get_permalink(); Output The link of the current page, for example: http://website.com/category/name-of-post/

Code echo get_permalink( 44 ); Output The link of the post id:44, for example: http://website.com/category/name-of-post/

Code echo get_permalink( 44 , false ); Output The link of the post id:44 without the name of the post, for example: http://website.com/category/%postname%/

Code $categories = get_the_category(); foreach( $categories as $category ) { echo $category->name . '<br />'; } Output All names of categories of the current page, one on each line.

Code $categories = get_the_category(); foreach( $categories as $category ) { echo $category->term_id . '<br />'; } Output All ids of categories of the current page, one on each line.

Sample Data: CREATE TABLE table_name ( id, list ) AS SELECT 1, 'a,b,c,d' FROM DUAL UNION ALL -- Multiple items in the list SELECT 2, 'e' FROM DUAL UNION ALL -- Single item in the list SELECT 3, NULL FROM DUAL UNION ALL -- NULL list SELECT 4, 'f,,g' FROM DUAL; -- NULL item...

Code the_title( ); Output The title of the current post or page

Code the_title( '<h1>', '</h1>' ); Output The title of the current post or page in h1 tags