Turbo Pascal
Turbo Pascal is a software development system that includes a compiler and an integrated development environment (IDE) for the Pascal programming language running on...
Lazarus is a cross-platform IDE for the Free Pascal compiler.
free pascal is a gpl'ed compiler that runs on linux, win32, os/2, 68k and more. free pascal is designed to be able to understand and compile delphi syntax, which is of course oop. lazarus is the part of the missing puzzle that will allow you to develop delphi like programs in all of the above platforms. unlike java which strives to be a write once run anywhere, lazarus and free pascal strives for write once compile anywhere. since the exact same compiler is available on all of the above platforms it means you don't need to do any recoding to produce identical products for different platforms.
languages.min.10 cross-platform programming android-apps ide object-oriented-language rapid-application-development android-development delphi ios-development object-pascal-language pascal pascal-ide