Android social network app data storage

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http://stackoverflow.com – I'm developing an app in android(Social Network). I need to save following user data on client side after login: 1-FirstName,LastName,Education,Sex,Languages and some other 20 Strings. 2-I need two arraylists of 15 size, and every node contains 3 strings(Title,Descrition etc) 3-Encoded Image string. 4-some boolean settings. I'm using PHP as backend server and JSON as data transfer language. Please guide me how to store all this data???? (HowTos)