Category Archives: TechKnow

TechKnow Zenze is a collection of code snippets that I find useful from time to time.

The Mobile App User Half Life

Recently at a iOS development meet up the presenters from Qubop showed a powerful slide from their presentation that quantified the mobile app user life cycle. It is estimated that on average after one day of usage, 38% of the users will stop using a mobile application. After a week, the percent of users that [...]

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Create Universally Unique ID in Java

For the longest time I’ve used java.rmi.server.UID to create a unique ID in a application. We enhanced the UID class to fit our needs and to format the ID to the standard format but unfortunately we found that within a process, we were generating duplicate IDs if we created more than a certain amount. It [...]

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Year In Review 2011

It is that time of year where we reflect on the accomplishments of the passing year and look forward to the one to come. Here is a window into the past year in technology through this year’s popular posts on TechKnow Juixe. Code and Design Remove Multiple Null Values From a List in Java Launch [...]

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Retweet December 2011

From time to time I just blast tweets about software development, project planning, team dynamics, or whatever else comes to mind. Here is a synopsis of recent tweets and rants. If you want to follow the conversation follow me at techknow and/or juixe. Software Development Being into computers today is not the same as it [...]

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Enable Siri on iPhone 4S

A family member received the iPhone 4S for Christmas and the first thing she wanted to try was Siri. She didn’t know how to turn it on so she called me, the local family tech support. To turn on Siri on the iPhone 4S go to the Settings app. Once on the iPhone Settings, drill [...]

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Reclaim Disk Space With Spacie

Recently I noticed that I had less than 3GB of free disk pace on my laptop. I have and take a lot of photos, in addition to that I download and install a lot of different development tools and IDEs. I also have a lot of music and listen to a lot of podcasts. In [...]

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