The methods described below are only applicable to one dimensional arrays. Before we talk about the different ways to copy an array in Java we will show you how NOT to copy an Array.

Date: 2019-08-11 View: 1473

Java Digital Signatures example

In Asymmetric Cryptography example we discussed the use of Public Key Pair in Cryptography. Another important use of the Public Key Infrastructure is in Digital Signatures. Digital Signatures are the digital equivalent of handwritten signatures with one important difference; they are not unique but come as a product of the message.

Date: 2019-08-11 View: 1340

In this article, we will show you how to create a Spring Boot traditional WAR file and deploy to a Tomcat servlet container.

Date: 2019-08-11 View: 1533

Eclipse Ctrl + T in IntelliJ IDEA

CTRL + H is IDEA equivalent of Eclipse show class hierarchy. Clicks on a class and press CTRL + H, it will display the subtypes hierarchy of the class.

Date: 2019-08-11 View: 1520

Spring file upload and connection reset issue

A Spring servlet initializer to configure the file upload limit, 5mb per file and 10mb per request.

Date: 2019-08-11 View: 1541

Spring MVC file upload example Commons FileUpload

This article will shows you how to use CommonsMultipartResolver to handle file upload in Spring MVC web application.

Date: 2019-08-11 View: 1546

Spring MVC How to handle max upload size exceeded exception

In Spring, you can declare a @ControllerAdvice to catch the ugly max upload size exceeded exception like this :

Date: 2019-08-11 View: 1810

IntelliJ IDEA Run / debug web application on Tomcat

This article shows you how to run or debug a web application on Tomcat server, using IntelliJ IDEA.

Date: 2019-08-11 View: 1579

JavaFX Animated Ball Example

The Bouncing Ball is the “Hello World” of animations in JavaFx. It’s simple to write, easy to understand and reveals the potential of JavaFx even from this primitive stage.

Date: 2019-08-11 View: 1439

jsoup Basic web crawler example

A Web Crawler is a program that navigates the Web and finds new or updated pages for indexing. The Crawler starts with seed websites or a wide range of popular URLs (also known as the frontier) and searches in depth and width for hyperlinks to extract.

Date: 2019-08-11 View: 1610

Java Swing Draw shapes dynamically example

In this article we create an application that randomly puts shapes on a JPanel. The user can choose between the different shapes our application supports as well as the amount that will be drawn. As a design decision our application can make circles and stars. You can download the example at the end of the article and experiment with more shapes, random colours, random sizes etc.

Date: 2019-08-11 View: 1441

Java Swing – Keep dialog window up

The most common (and simple) way to implement a dialog in our application is the JOptionPane class. In this article we will discuss how to “overwrite” the default behaviour of JOptionPane that closes the dialog window when the user clicks a JOptionPane-created button.

Date: 2019-08-11 View: 1312

Java RMI Distributed objects example

Image Source: Wikimedia.org

Date: 2019-08-11 View: 1208

Eclipse Ctrl + Shift + O in IntelliJ IDEA

In Eclipse, you press CTRL + SHIFT + O “Organize Imports” to import packages automatically. For IntelliJ IDEA, if you press CTRL + ALT + O “Optimize Imports”, it just removes some unused imports, never imports any package. And the worst is you need click on the class name and press ALT + ENTER keys to import the package one by one.

Date: 2019-08-11 View: 1347

Spring Boot file upload example

This article shows you how to upload a file in Spring Boot web application.

Date: 2019-08-11 View: 1674