Click here to close now.




















Welcome!

Related Topics: Java IoT, Industrial IoT, Microservices Expo, Adobe Flex, IoT User Interface, Ruby-On-Rails

Java IoT: Blog Feed Post

Java Is Better Than JavaScript

I had a working program and decided to add the JavaScript handler function

Tоday I was participating in a discussion on one Java forum – the question was if Java is an easy or difficult programming language to learn. IMO, Java is not difficult to learn, to teach, and to use. It’s a strongly typed compiled language with tools that help you identify most of the errors before you even run the program.

While participating in this discussion I was writing code in a different programming language called JavaScript, which gave me a chance to illustrate a lot of things the Java developer takes for granted, while there are people who work in a more hostile environment called JavaScript.

I had a working program, and decided to add a JavaScript handler function to illustrate HTML form submission with jQuery for our upcoming book. I’ve been writing this code in Eclipse-based IDE called Aptana. I’ve added this handler for the submit event to a Donation form:

$('#donate-form-container').submit(function(){
var formData = $(this).serialize();

console.log("The Donation form is serialized: " + formData);

returm false;
});

Ran the program – it rendered the Web page, HTML looks fins, but nothing worked. IDE didn’t give any errors. Started a browser debugger – Firebug. Now I’ll going to put a breakpoint in this newly added function and find the problem. How hard could it be? I’ve added just this little fragment to a working program. Easy Peasy.

Oops. Where is my main.js? Nowhere to be found. Only jQuery script is available.

s1

Was my main.js even downloaded? Let’s check the Network tab. Yes, it’s here:

s2

After applying deductive reasoning (as in Sherlock Holmes stories) I figured out that the script has arrived to the browser, which instead of adding it to the DOM, showed a middle finger without explaining why. As any normal person, I started to to find who someone else to blame. May be this Firebug is buggy and just doesn’t want to show my nice script? Tried Chrome with Developer Tools – same story. The script arrived, got the finger and I have nothing to debug.

Well, there is no one else to blame. Let me just re-read my own code. Man, I misspelled the word return and wrote “returm false;” instead, which deserves a capital punishment. Changing m to n did the trick, and now both Chrome and Firefox are happy to add my JavaScript code to DOM.

What’s the moral of this story:

  1. Java developers should know that they take lots of things for granted and should not complain that their life is difficult!
  2. The fact that it takes less code to write Hello World program in JavaScript doesn’t mean that it’s an easy programming language. Don’t trust me? Watch this.

Read the original blog entry...

More Stories By Yakov Fain

Yakov Fain is a co-founder of two software companies: Farata Systems and SuranceBay. He authored several technical books and lots of articles on software development. Yakov is Java Champion (https://java-champions.java.net). He leads leads Princeton Java Users Group. Two of Yakov's books will go in print this year: "Enterprise Web Development" (O'Reilly) and "Java For Kids" (No Starch Press).

Latest Stories
In a recent research, analyst firm IDC found that the average cost of a critical application failure is $500,000 to $1 million per hour and the average total cost of unplanned application downtime is $1.25 billion to $2.5 billion per year for Fortune 1000 companies. In addition to the findings on the cost of the downtime, the research also highlighted best practices for development, testing, application support, infrastructure, and operations teams.
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space. In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducte...
The Software Defined Data Center (SDDC), which enables organizations to seamlessly run in a hybrid cloud model (public + private cloud), is here to stay. IDC estimates that the software-defined networking market will be valued at $3.7 billion by 2016. Security is a key component and benefit of the SDDC, and offers an opportunity to build security 'from the ground up' and weave it into the environment from day one. In his session at 16th Cloud Expo, Reuven Harrison, CTO and Co-Founder of Tufin,...
With SaaS use rampant across organizations, how can IT departments track company data and maintain security? More and more departments are commissioning their own solutions and bypassing IT. A cloud environment is amorphous and powerful, allowing you to set up solutions for all of your user needs: document sharing and collaboration, mobile access, e-mail, even industry-specific applications. In his session at 16th Cloud Expo, Shawn Mills, President and a founder of Green House Data, discussed h...
Mobile, social, Big Data, and cloud have fundamentally changed the way we live. “Anytime, anywhere” access to data and information is no longer a luxury; it’s a requirement, in both our personal and professional lives. For IT organizations, this means pressure has never been greater to deliver meaningful services to the business and customers.
Container technology is sending shock waves through the world of cloud computing. Heralded as the 'next big thing,' containers provide software owners a consistent way to package their software and dependencies while infrastructure operators benefit from a standard way to deploy and run them. Containers present new challenges for tracking usage due to their dynamic nature. They can also be deployed to bare metal, virtual machines and various cloud platforms. How do software owners track the usag...
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
There are many considerations when moving applications from on-premise to cloud. It is critical to understand the benefits and also challenges of this migration. A successful migration will result in lower Total Cost of Ownership, yet offer the same or higher level of robustness. In his session at 15th Cloud Expo, Michael Meiner, an Engineering Director at Oracle, Corporation, analyzed a range of cloud offerings (IaaS, PaaS, SaaS) and discussed the benefits/challenges of migrating to each offe...
Puppet Labs has announced the next major update to its flagship product: Puppet Enterprise 2015.2. This release includes new features providing DevOps teams with clarity, simplicity and additional management capabilities, including an all-new user interface, an interactive graph for visualizing infrastructure code, a new unified agent and broader infrastructure support.
Chuck Piluso presented a study of cloud adoption trends and the power and flexibility of IBM Power and Pureflex cloud solutions. Prior to Secure Infrastructure and Services, Mr. Piluso founded North American Telecommunication Corporation, a facilities-based Competitive Local Exchange Carrier licensed by the Public Service Commission in 10 states, serving as the company's chairman and president from 1997 to 2000. Between 1990 and 1997, Mr. Piluso served as chairman & founder of International Te...
SYS-CON Events announced today that MobiDev, a software development company, will exhibit at the 17th International Cloud Expo®, which will take place November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. MobiDev is a software development company with representative offices in Atlanta (US), Sheffield (UK) and Würzburg (Germany); and development centers in Ukraine. Since 2009 it has grown from a small group of passionate engineers and business managers to a full-scale mobi...
One of the hottest areas in cloud right now is DRaaS and related offerings. In his session at 16th Cloud Expo, Dale Levesque, Disaster Recovery Product Manager with Windstream's Cloud and Data Center Marketing team, will discuss the benefits of the cloud model, which far outweigh the traditional approach, and how enterprises need to ensure that their needs are properly being met.
Learn how to solve the problem of keeping files in sync between multiple Docker containers. In his session at 16th Cloud Expo, Aaron Brongersma, Senior Infrastructure Engineer at Modulus, discussed using rsync, GlusterFS, EBS and Bit Torrent Sync. He broke down the tools that are needed to help create a seamless user experience. In the end, can we have an environment where we can easily move Docker containers, servers, and volumes without impacting our applications? He shared his results so yo...
Palerra, the cloud security automation company, announced enhanced support for Amazon AWS, allowing IT security and DevOps teams to automate activity and configuration monitoring, anomaly detection, and orchestrated remediation, thereby meeting compliance mandates within complex infrastructure deployments. "Monitoring and threat detection for AWS is a non-trivial task. While Amazon's flexible environment facilitates successful DevOps implementations, it adds another layer, which can become a ...