Build a responsive signup form in pure Java with data-binding, error-handling, and cross-field validation—no HTML or JavaScript needed.
Yesterday I’ve published an article onStringJoiner(), String.join()which covers five different ways to joinString,Collections, etc. In this tutorial we will go overCollectors.joining()which joins not only elements but alsoJava Objects(POJO). Let’s get started. We wi...
1. Apache Commons Lang – ArrayUtils The simplest way is add the Apache Commons Lang library, and use ArrayUtils. addAll to join arrays. This method supports both primitive and object type arrays. JoinArray.java package com.mkyong.example.array; import org.apache.commons.lang3.ArrayUtils; impor...
In our example, we want to append the values (from both maps) for a duplicate key“4”. //map 1HashMap<Integer,String>firstMap=newHashMap<>();firstMap.put(1,"A");firstMap.put(2,"B");firstMap.put(3,"C");firstMap.put(4,"D");//map 2HashMap<Integer,String>secondMap=newHash...
While skills-based hiring may seem like a nice idea, it may soon become a business imperative.Korn Ferrypredicts that by 2030, more than85 million jobs could go unfilledbecause there aren’t enough skilled people to take them. As a result, companies could lose up to $8.5 trillion ...
Certified Java SE 8 Programmer. Can’t wait to join Fay Ro House and create bug-free code for new applications at all stages of software development. At Greynox, mentored 20+ interns and junior developers during onboarding. See more: Software Engineer CV: How to Write & Examples Personal ...
You may install various versions and releases of Java on a single system, but most people only need one installation. With that in mind, try to only install the version of Java that you need to run or develop your application(s).
BCNF (Boyce-Codd Normal Form): is just a more strong form of 3NF. Sometimes also referred to as3.5NF. 4NF (Fourth Normal Form): In addition toBCNF, the database has no multi-valued dependency. 5NF (Fifth Normal Form) In addition to 4NF, the database does not contain any join depend...
If you're curious about becoming a freelance web developer, this is the place to start. In this step-by-step guide, you'll find information on how to become a freelance web developer and why so many people are choosing to work as independent professionals. Here are eight steps to kicksta...
It’s also a good idea to check the profiles of people in your network to see what they’ve done. Search for influencers in your industry and read their profiles, too. They may have some unique and inspiring ideas that you can borrow. ...