Mustafa - Blogger - Abuja, Nigeria

Khamis Mustafa

Abuja, Nigeria




I give tutorials mainly in Java and Java related technologies such as Android.

Work History


Code Cypher


Java Generics and the PECS Rule

Explained the solution to the complexity regarding the input parameter types, was solved by the leading expert and technical leader of generics specifications, Joshua Bloch. in his speech at Devoxx, suggested the use of wildcard types on method’s input parameters where the producer class extends object subtype(objects used in the method execution) while the super class consumes its object(ie consumes the object produced by the method). Puting this in a simple mnemonic called PECS.

Smart Calculator

Developed as an user-friendly and Open Source instrument, SMART CALCULATOR can be used to perform various math operations.
The beautifully designed SMART CALCULATOR, is a cross-platform tool that allows the user to choose between two modes of performing calculations (standard and scientific).
The Swing PLAF library that's been used to build the calculator, allows the user to change the look and feel of the application.

I Love Android

A Facebook group for all who love or are associated with Android technology in any way.

I Love Java

A Facebook group for beginners, advanced and professional Java Developers.

Digital Reciter

An eQuran that consists of many reciters with many capabilities such as Media Player, Media Library and Favorites.

Wap Server

A mobile server that receives and process mobile request remotely.

Qualifications & Certifications


Liberty college

Computer Science

Federal Universirty Of Technology Yola

Liberty College

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