Page last updated at 11:49 GMT, Friday, 6 February 2009

Nine-year-old writes iPhone code

Lim Ding Wen
Lim Ding Wen started using a computer when he was aged two

A nine-year-old Malaysian boy in Singapore has written a painting application for the Apple iPhone.

Lim Ding Wen created the finger painting program, known as Doodle Kids, for his two younger sisters aged three and five.

The program allows iPhone owners to draw images on the handset's touch screen using just their fingers.

The program has been downloaded more than 4,000 times from Apple's iTunes store in less than two weeks.

While most children of his age are painting or drawing with crayons, Lim Ding Wen has been programming.

Lim, who is now fluent in six programming languages, first started using a computer when he was two-years-old, discovered programming aged seven, and has since completed more than 20 programming projects.

His latest application, Doodle Kids, allows users to draw pictures using their fingers and then clear the screen by shaking the iPhone.

"I wrote the program for my younger sisters, who like to draw," said Lim. "But I am happy that people like it."

Lim wrote the original application on his computer but has now adapted it for use on an iPhone.

He told The Electric New Paper in Singapore that he wrote the application in just a few days in Pascal.

Go on my son

Writing on his website, Lim's father - Lim Thye Chean - a chief technology officer at a local hi-tech firm, who also writes iPhone applications, was modest about his son's achievements.

"Ding Wen is an above average boy with an interest in computers, especially Apple IIGS and Macs, likes to do programming, and that's it.

"Doodle Kids is an extremely simple program that can be done by anybody. Everybody can program - if Ding Wen can, so can you," he wrote.

Lim Ding Wen is now working on a sci-fi game for the iPhone called Invader Wars and plans to join his school's robotics club.

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