Skip to main content

Java Tricks

Search This Blog

What are the alternatives to OpenJDK

Posted by Visruth on April 29, 2019

Get link
Facebook
X
Pinterest
Email
Other Apps

Oracle JDK
Amazon Corretto
Azul Zulu

Web Firm Framework also supports all these JDKs.

Get link
Facebook
X
Pinterest
Email
Other Apps

Comments

Post a Comment

Popular Posts

How to trim all strings in a bean (pojo/value object) in Java

One of my favourite frameworks is webfirmframework Forms are used everywhere in a web/desktop/other applications. In these forms, the user may enter values starting and/or ending with spaces. But we may not need theses spaces at the starting and ending, so we may want to trim it. As we know, we may simply use a trim() method to trim a string. But, what if we want to trim all strings in a bean/pojo/value object. Suppose, consider a form having some fields, first name, last name, address etc... The user may enter the values as First Name : Last Name : Address : House name, Place, Distring The values have spaces in the beginning and ending. So, to write code to trim every string separately is a kind of messing sometimes. Here is a method which can trim all strings in a bean/pojo/value object (Only the strings will be trimmed, so it doesn't matter if it contains data types other than strings). Before that let us make a value object (POJO/bean) for these fields.

Why Should You Use Pure JavaScript for UI instead of third party js libraries

There are lot of JavaScript libraries which make the development easier. But when we use a pure JavaScript we understand the core functionality & logic of a JavaScript engine. When we use a new js library we have to learn its own functions, features and their usages and they might also lead to a misconception of JavaScript execution, eg: AngularJS. However, some functionalities like charts/diagrams may not be able to do in a shorter time with pure JavaScript, in such cases we have to rely on third party libs. When we use third party js libraries which provide ready made ui features we might face some unsolvable issues when customization required for its ui features so if we have a plan for nth level of ui customization then it's always better to use pure JavaScript. Modifying the js library itself is not always safe.

Why is Class.this (ClassName.this) used?

//What is Class.this package tcase; /** * * @author visruth cv * */ public class First { final String visru; final Second second; First(String visru) { this.visru = visru; this.second = new Second(visru + "-second"); } class Second { final String visru; final Third third; Second(String visru) { this.visru = visru; this.third = new Third(visru + "-third"); } class Third { final String visru; final Fourth fourth; Third(String visru) { this.visru = visru; this.fourth = new Fourth(visru + "-fourth"); } class Fourth { final String visru; Fourth(String visru) { this.visru = visru; } void toPrint() { System.out.println(

Powered by Blogger