Pursuing the skills of core Java which leads to android development would require 3-4 months. Mastering the same is expected to take 1 to 1.5 years . Thus, in brief, if you are a beginner, it is estimated to take you around two years to have a good understanding and to start with android development projects.
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4. Android Fundamentals: Ultimate Tutorial for App Development . This is another great free course on learning Android on Udemy, the best part of this course is that it’s structured nicely to cover essential concepts of Android.
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