can i build a software using this java for basic java mobile phones(ex : samsung c3312, nokia c2..etc ) ??

Answer 1

yes but only 10% of the people r using these phones and mostly adults so u shd concentrate on coding for smartphones and good luck

Answer 2

Thank u so much..
how much time will it take to develop an app after learning all chapters from the " learn java " app

Answer 3

sololearn only provides basics after this u shd learn GUI's and networking in java this is the most imp part in java and after u r perfect with this be sure to learn XML(extended markup language) for layout designing in ur app and practice ofcourse then u r good to go and good luck