Devaka Cooray

Sheriff
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since Jul 29, 2008
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Devaka started programming with Pascal and BASIC languages when he was 13, and he has been coding with Java since 2003. Devaka got his bachelor's in computer science from the University of Moratuwa, and currently holds SCJP, SCWCD, and SCBCD certifications. He is mostly known as the author of ExamLab , which is a popular exam simulator for SCJP certification.
When he is not wrangling with his JavaEE and enterprise projects, he likes to play with sneaky web application security stuff.
More about Devaka can be found at his website http://www.devakacooray.com/
Devaka was made a Bartender in 2010, was promoted to Sheriff in 2015 , and was made a Marshal in 2015 Email
Moratuwa, Sri Lanka
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Recent posts by Devaka Cooray

What's new!

  • Devaka - more quantum detectors installed to capture remote brainstem activities
  • Devaka - Fix bug with premium thread upgrades
  • Devaka - Fix bug with email preferences on user profile
  • Devaka - temporary jump jets added to escape pod 7
  • Devaka - re-calibration of the carbonite freezer
  • Devaka - electricity made 178% efficient by replacing fluorescent bulbs with incandescent bulbs in cabin 12
  • Devaka - robot goat army finally has actual targeting so THAT won't happen again
  • Devaka - add more boron control rods to the secondary nuclear reactor
  • Devaka - shark tank trap door mechanism adjustment
  • Devaka - removed the dead tribbles from shuttle pod 7
  • Devaka - cleaned that weird goo out of transporter room 2
  • Devaka - completed another round of 3C273 quasar flyby
  • Devaka - Improve the banner tracker page
1 day ago
Here's what's new in the latest version of the forum software!

  • Devaka - Feature to remind people who boost threads to reply to their threads
  • Devaka - reset the dart launchers in the cave labyrinth
  • Devaka - clean out the kraken cave
  • Devaka - shark tank trap door mechanism adjustment
  • Devaka - added to level 5 diagnostic for long range sensors
  • Devaka - enhance plasma synthesis to make the production of artificial atoms more efficient
  • Devaka - electricity made 178% efficient by replacing fluorescent bulbs with incandescent bulbs in cabin 12
  • Devaka - fine-tune the lorentz force in the main z-pinch system
  • Devaka - reworked the AI of HAL 9000
  • Devaka - Fix bug where expanding minimized posts didn't work in non logged in view
  • Devaka - alligator pit expansion
  • Devaka - refilled the main beta particle emitter with copper-64 isotope
  • Devaka - clean up the broken indium phosphide crystals
  • Devaka - fix the broken vacuum beam lines in the primary electrostatic nuclear accelerator
  • Devaka - lava routed to a lower level, opening up three more bunk rooms for henchmen
  • Devaka - replace electrodes of the gridded ion thruster
  • Devaka - safety cover installed over self destruct button
  • Devaka - removed the dead tribbles from shuttle pod 7
  • Devaka - re-calibration of the carbonite freezer
  • Devaka - replaced some of the polymer solar cells with organic solar cells
  • Devaka - strengthen the intensity of main ultrasonic transducers
  • Devaka - Proper client side cache eviction on images
  • Devaka - boost the main engine thrust by a magnitude of 3.14
  • Devaka - shielded the primary shuttle from the messier 83 gamma ray burst
  • Devaka - completed another round of 3C273 quasar flyby
  • Devaka - add more boron control rods to the secondary nuclear reactor
  • Devaka - bring the flux capacitor online
  • Devaka - shark tank expansion
  • Devaka - Improve DX priority descriptions
  • Devaka - improve the water cooling system
  • Devaka - Use white background when generating thumbnails of transparent images
  • Devaka - dilithium crystal calibration
  • Devaka - main engine reconnected to another electron pump
  • Devaka - refill lithium deuteride in the external pulsed plasma propulsion
  • Devaka - primary weapon made 4% more efficient
  • Devaka - Show regular and mobile CTR on each banner
  • Liutauras - found the droids we were looking for
  • Devaka - Ability to purchase gift-upgrades from a direct link
  • Devaka - donuts cleared out of torpedo tube 3 so we don't get ants
  • Devaka - connect the lightning rod to the top of the clock tower
  • Devaka - Fix bug with long texts overflowing the post layout
  • Devaka - fishing the gross goo out of the carbonite freezer after a boo-boo
  • Devaka - Feature to add gift bundles on premium threads
  • Devaka - Fix bug where premium thread purchase options were looking too wide
  • Devaka - add one photon cannon to the runabout
  • Devaka - Improve the UI of payment options
  • Devaka - increase the magnetic field intensity of the primary cyclotron
  • Devaka - more quantum detectors installed to capture remote brainstem activities
  • Jeanne - Fix stack trace on completed cow/apple polls (hot patched)
  • Devaka - Feature to get a notification when a thread has not been updated for days.
3 weeks ago


Fintech is making strong inroads into the payments industry and changing the way customers and retailers handle business transactions. While the field is still evolving and some advances are still years away, some technologies are already making an impact. Below are some of the trends that are transforming the way we conduct business:


Traditional Financial Institutions Partnering With Fintech

Not long ago, fintech was competing with traditional financial institutions (FIs) such as banks and insurance companies. Recently though, a new “fintegration” trend is emerging. The two sides have decided to join forces, and the result is an integration of the agility of fintech with the steadiness of the conventional system.

Successful fintegration is a win-win for all parties involved as banks increase revenues, and fintech companies get the legitimacy and credibility of the more stable system. This model is set to continue evolving as new technologies get integrated into the financial systems.

The challenge that remains in coming years is how fintegration can be harnessed for the benefit of customers. Both banks and fintech are aware that they must catch up to today’s always on the go, dynamic customers who prefer quicker and more convenient services.


TInstant Transactions

Using the traditional system to make payments can take several days, leaving customers and cardholders stranded. However, fintegration is enabling the actualization of real-time payments for eCommerce, offline retailers, restaurants, and other businesses.

Also, peer-to-peer payment apps such as Venmo are now allowing users to effortlessly receive and transfer money. Some even have social media elements, such as messaging and sharing.
Also, banks will soon be able to process loan requests remotely and in real-time, completely changing the landscape of the payments industry.


Mobile Trading Opens Doors for New Investors



Open market trading was once a preserve for the few, but the rise of fintech has opened new doors for more traders to access the market. Some fintech apps like Robinhood and Stash even offer free access to markets for stocks and bond trading, bitcoin trading, precious metals trading, and more.

Such services eliminate barriers to entry for new and inexperienced traders, allowing them to start building a portfolio. Millions of young people who would have otherwise been excluded can now try their hand at investing and securing their financial future.


Frictionless Payments

Fintech has brought about the ability for customers to conduct frictionless payments for both online and offline checkout processes. Frictionless payments are have qualities that include:

  • They save time
  • They allow for fast checkouts
  • Very few steps are needed to complete the transaction process
  • They feel like a natural part of the client experience
  • They reduce clients’ cognitive stress by reducing the number of passcodes that a client ought to remember


  • Frictionless payments have several perks for both retailers and customers. Customers save time, as well as pay for things with more flexibility and freedom. Sellers gain from better efficiency at checkouts, and customer satisfaction leads to repeat purchases.


    The Subscription Model

    The subscription mode of payment is gaining popularity, especially with the younger generation of customers. Fintech’s emphasis on making transaction processes more efficient has played a key role in this.

    The subscription model, also known as recurring billing involves automating the invoicing process, which means invoices are sent automatically. The retailer then automatically deducts payment from the customer’s bank account, with their consent. This type of billing saves time and resources for the company, as well for the customer. The customer benefits by no longer having to enter their billing info every other month. It’s a win-win situation for both parties.


    Blockchain Technology Acquires Legitimacy

    Another brainchild of fintech is blockchain, which achieved recognition with the introduction of the bitcoin digital currency. The technology is still under a decade old, but banks and other traditional financial systems are already exploring its potential for more efficient lending and record-keeping.

    Blockchain is an open-source digital ledger that keeps records transactions in real-time. This is unlike the common Automated Clearing House method, which takes minutes or days. According to some experts, banks have so much to gain by adopting the technology – including saving 20 billion dollars annually by 2020. These potential massive reserves of cash are drawing many FIs to experiment with blockchain.
    1 month ago


    Technology has crept into every imaginable business realm today. Every realm from the transportation industry to the service industries have been affected by technology. Today, dozens of tech companies cross the $1 billion valuation mark every year. As an industry that relies heavily on data, the financial realm has possibly seen the highest rates of technology adoption.

    Trading processes today are not just handled by machines but the entire information chain is defined by tech. Automation is one of the many forms of technology that are now used in trading. Some bots handle data and make decisions on behalf of traders all across the market. To understand just how much technology has changed the modern trading market, we have to look at various learning points. The following is a breakdown of the main ways that technology has changed modern trading.


    Automation

    As stated in the introduction, automation is a major aspect of tech that is prevalent in the market today. Not only do machines take care of the routine tasks associated with the business, but they have also resulted in a new phenomenon – automated trading. So, what is automated trading? In basic terms, it is the use of programmed machines to execute tasks on behalf of a trader. Automated trading systems work on the premise of some established rules. The machines are programmed to make decisions when a particular set of conditions is triggered. In the realm of trading, automation handles different levels of the trading process. Over 80% of trade orders today are automated. Some machines are capable of handling the entire trading process including entering and exiting trades. Some of the tasks that automated trading systems can do include:

  • Communicating with the broker
  • Handling trade entry and exit points
  • Starting and ending trading sessions



  • As you might expect, there are pros and cons associated with automation. The main advantage of automation though is the removal of emotion during trading. Many traders tend to fail because they have become too passionate to focus on what is going on in the market. Automation however also can fail as machines are susceptible to errors.


    Extended Access to the Market



    Technology has also made it possible for traders to access the markets for longer durations. Nowadays, 24-hour access to the market is possible because of technology. While the individual markets themselves do not run for 24 hours, a trader can work with time zones to ensure that they have access to the global market which is always running at different time zones.

    To this extent, shrewd traders can benefit from Asian Markets during the day and European Markets at other times when markets in Asia are closed. This unlimited access to the market has resulted in a fast-paced investment realm where the opportunities to make profits are many.


    Technology Has Heralded New Styles of Investing

    Financial markets have also evolved significantly due to technology. Today, all kinds of investors and traders can participate in the markets. Some traders work as part of organizations and team-work is now quite common. The collaboration between traders is enhanced by the fast connectivity that is provided by technologies like 4G.

    The scale and scope of the market have thus changed drastically. Today, crowdsourcing and partnering to establish trading firms is a norm in the market. The new forms of investing are very rewarding, but they also come with heightened risks. Considering how the number of market participants has increased in recent years, the lucrative part of the market has only been left to skilled traders who have the best strategies.


    Mobile Trading
    The usage of mobile phones has increased significantly. Over 3 billion people now use smartphones around the world. Smartphones can do most things that a computer can, including trading. Mobile trading has thus emerged as a form of trading by itself under the influence of technology. Today, a plethora of trading apps are available for budding traders. These apps provide all the information needed to venture into the market. Modern trading apps also allow traders to do everything they might need from the palm of their hands. Mobile trading accounts for 40% of trade, and this number is likely to grow in coming years. Technology has thus influenced trading massively in recent years.




    1 month ago
    Here is what's new in the latest version of the forum software we're running on right now.
    • Devaka - reset the dart launchers in the cave labyrinth
    • Devaka - rewire cabin 12 to facilitate a hologram projector
    • Devaka - Allow users to add wiki pages as similar threads to their threads
    • Devaka - connect the lightning rod to the top of the clock tower
    • Devaka - corrected a 5.39x10⁻⁴⁴ seconds offset found in the main atomic clock
    • Devaka - Fix bug with affiliate console page
    • Devaka - shark tank expansion
    • Devaka - alligator pit expansion
    • Devaka - replaced some of the polymer solar cells with organic solar cells
    • Devaka - Fix bug with affiliate dashboard
    • Devaka - cleaned that weird goo out of transporter room 2
    • Devaka - Fix bug where search results in mobile view appeared white
    • Devaka - found the droids we were looking for
    2 months ago
    We have deployed a new version of the forum software. Here are some of the changes it contains.

    • Devaka - primary weapon made 4% more efficient
    • Devaka - Improve the /read/ link to work better with never read threads
    • Devaka - Improve the link to the last post of a thread
    • Devaka - Add new read status tracking to mobile view
    • Devaka - increase the magnetic field intensity of the primary cyclotron
    • Devaka - Improvements to the green line on posts
    • Devaka - dilithium crystal calibration
    • Devaka - added to level 5 diagnostic for long range sensors
    • Devaka - fix the broken vacuum beam lines in the primary electrostatic nuclear accelerator
    • Devaka - strengthen the intensity of main ultrasonic transducers
    • Devaka - Improve the UI of similar threads box
    • Devaka - undocked the command module from the secret mission module
    • Devaka - alligator pit expansion
    • Devaka - Fix bug where last post navigation worked even when the preference option was unchecked
    • Devaka - boost the main engine thrust by a magnitude of 3.14
    • Devaka - more quantum detectors installed to capture remote brainstem activities
    • Devaka - Correctly show the last post information next to individual forums
    • Devaka - alligator pit trap door mechanism adjustment
    • Devaka - Fix bug where pagination links were broken on some threads and wiki pages
    • Devaka - connect the lightning rod to the top of the clock tower
    • Devaka - Fix typo in thread not found message
    • Devaka - Pie feature to anonymously like posts.
    • Devaka - Pie feature to hide notifications
    • Devaka - add more boron control rods to the secondary nuclear reactor
    • Devaka - shielded the primary shuttle from the messier 83 gamma ray burst
    • Devaka - re-calibration of the carbonite freezer
    • Devaka - main engine reconnected to another electron pump
    3 months ago

    r ranson wrote:I read a while back that if we have a book published on kindle, we can grant free access to individual readers - either for free or for a fee ($0.99).


    Is there a page where this is documented or mentioned?

    r ranson wrote:How about a system like these people use?  https://www.iampeth.com/pdf/cb-doner-scrapbook


    That is a flipbook. It may work fine on a web browser, but it doesn't come with anything that supports offline access to the book.
    3 months ago
    I have merged your accounts. You should be able to log in with either of your two email addresses.
    3 months ago
    If your other account has any posts, we can transfer them to this account. Or vise-versa. Tell us about how to find your other account.
    4 months ago
    • Devaka - reworked the AI of HAL 9000
    • Devaka - enhance plasma synthesis to make the production of artificial atoms more efficient
    • Devaka - alligator pit trap door mechanism adjustment
    • Devaka - re-calibration of the carbonite freezer
    • Devaka - reset the dart launchers in the cave labyrinth
    • Devaka - dilithium crystal calibration
    • Devaka - replace electrodes of the gridded ion thruster
    • Devaka - bring the flux capacitor online
    • Devaka - corrected a 5.39x10⁻⁴⁴ seconds offset found in the main atomic clock
    • Devaka - donuts cleared out of torpedo tube 3 so we don't get ants
    • Devaka - shark tank trap door mechanism adjustment
    • Devaka - thinking cap rebuilt to use batteries instead of gasoline
    • Devaka - found the droids we were looking for
    • Devaka - fine-tune the lorentz force in the main z-pinch system
    • Devaka - refill the main wetwell suppression pools
    • Devaka - refill lithium deuteride in the external pulsed plasma propulsion
    • Devaka - improve the performance of distributed bragg reflector
    • Devaka - connect more solar cells to the undervolt main B bus
    • Devaka - clean out the kraken cave
    • Devaka - "my stuff" link on mobile view
    • Devaka - added to level 5 diagnostic for long range sensors
    • Devaka - strengthen the intensity of main ultrasonic transducers
    • Devaka - removed the dead tribbles from shuttle pod 7
    • Devaka - lava routed to a lower level, opening up three more bunk rooms for henchmen
    • Devaka - rewire cabin 12 to facilitate a hologram projector
    • Devaka - completed another round of 3C273 quasar flyby
    • Devaka - increase the magnetic field intensity of the primary cyclotron
    • Devaka - add more boron control rods to the secondary nuclear reactor
    • Devaka - replaced some of the polymer solar cells with organic solar cells
    • Devaka - refilled the main beta particle emitter with copper-64 isotope
    • Devaka - add one photon cannon to the runabout
    • Devaka - more quantum detectors installed to capture remote brainstem activities
    • Devaka - main engine reconnected to another electron pump
    • Devaka - shark tank expansion
    • Devaka - upgrade aft shields
    • Devaka - alligator pit expansion
    • Devaka - safety cover installed over self destruct button
    • Devaka - Overhaul the read status tracking function
    • Devaka - Fix bug with post links
    • Devaka - Fix bug where the /posts/read/- link was pointing to wrong post
    • Devaka - primary weapon made 4% more efficient
    4 months ago

    Randy Tong wrote:Mark our post as solved is not longer here


    ??

    What happens when you click the mark as solved button?
    5 months ago
    The fix is now on production.
    5 months ago
    • Devaka - shark tank expansion
    • Devaka - Fix bug where some new threads were not assigned to any forum
    • Devaka - electricity made 178% efficient by replacing fluorescent bulbs with incandescent bulbs in cabin 12
    • Improve category button size
    • Devaka - clean up the broken indium phosphide crystals
    • Devaka - fix the broken vacuum beam lines in the primary electrostatic nuclear accelerator
    • Devaka - more quantum detectors installed to capture remote brainstem activities
    • Devaka - robot goat army finally has actual targeting so THAT won't happen again
    5 months ago
    • Devaka - Fix CSRF errors on the recent threads page (hot-patched to coderanch)
    • Devaka - primary weapon made 4% more efficient
    • Devaka - completed another round of 3C273 quasar flyby
    • Devaka - more quantum detectors installed to capture remote brainstem activities
    • Devaka - thinking cap rebuilt to use batteries instead of gasoline
    • Devaka - When an email-only user tries to log in show them the option to convert to a full account
    • Devaka - boost the main engine thrust by a magnitude of 3.14
    • Devaka - temporary jump jets added to escape pod 7
    • Jeanne - fix promo url to link to book instead of forum when announcing winners (thanks to henry for noticing)
    • Devaka - strengthen the intensity of main ultrasonic transducers
    • Devaka - corrected a 5.39x10⁻⁴⁴ seconds offset found in the main atomic clock
    • Devaka - shark tank trap door mechanism adjustment
    • Devaka - replace electrodes of the gridded ion thruster
    • Devaka - connect more solar cells to the undervolt main B bus
    • Devaka - added to level 5 diagnostic for long range sensors
    • Devaka - Feature to report a purple mooseage
    • Devaka - re-calibration of the carbonite freezer
    • Devaka - Avoid showing merit badges on wiki posts
    • Devaka - electricity made 178% efficient by replacing fluorescent bulbs with incandescent bulbs in cabin 12
    • Devaka - found the droids we were looking for
    • Devaka - reset the dart launchers in the cave labyrinth
    • Devaka - cleaned that weird goo out of transporter room 2
    • Devaka - fishing the gross goo out of the carbonite freezer after a boo-boo
    • Devaka - fine-tune the lorentz force in the main z-pinch system
    • Devaka - shielded the primary shuttle from the messier 83 gamma ray burst
    • Devaka - add more boron control rods to the secondary nuclear reactor
    • Devaka - Improve "thread does not exist" message
    • Devaka - Ask for confirmation when down voting a post
    • Devaka - Confirm email subscription once every two years
    • Devaka - safety cover installed over self destruct button
    5 months ago