RAPTOR is a flowchart-based programming environment, designed specifically to help students visualize their algorithms and avoid syntactic baggage. RAPTOR programs are created visually and executed visually by tracing the execution through the flowchart. Required syntax is kept to a minimum. Students prefer using flowcharts to express their algorithms, and are more successful creating algorithms using RAPTOR than using a traditional language or writing flowcharts without RAPTOR.
Are you interested in running RAPTOR on Chromebooks, iPads, or just in a browser? Check out the pre-release here!. This is NOT fully tested. Send feedback via
A Multiplatform version of RAPTOR is now available for Windows, Mac and Linux built on top of [Avalonia]! See the downloads section below. Uses fonts from Noto Sans CJK for internationalization. Key differences:
Figure 1 RAPTOR for Windows
Figure 2 RAPTOR Avalonia
Papers on RAPTOR application:
RAPTOR referenced in following books or publications:
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Technicians often use the "One-Click" method within DFT Pro for Xiaomi devices. While specific UI steps evolve with updates, the general workflow involves: Device locked due to Google FRP - Honeywell Support Portal
: Keep the battery at least 50% charged to avoid interruptions.
, typically running Android 11 with MIUI 13, features Factory Reset Protection (FRP). This security layer requires the original Google account credentials after a factory reset to prevent unauthorized use of lost or stolen devices. For technicians and advanced users, the offers a professional way to manage this lock. What is DFT Pro Tool?
: FRP removal typically erases all user data; verify if any essential files can be backed up first. FRP Bypass Using DFT Pro
DFT Pro is a specialized Android servicing software used for high-level operations like FRP removal, IMEI repair, and flashing. Unlike general tools, it provides brand-specific support for Xiaomi, Samsung, and Huawei, and is compatible with Qualcomm, MediaTek, and Unisoc chipsets. It is frequently updated to handle newer security patches on modern Android versions. Preparing for the Process Before attempting to bypass FRP on a , ensure the following requirements are met:
: Install the DFT Pro Tools Driver to ensure stable communication between the PC and the phone.
Technicians often use the "One-Click" method within DFT Pro for Xiaomi devices. While specific UI steps evolve with updates, the general workflow involves: Device locked due to Google FRP - Honeywell Support Portal
: Keep the battery at least 50% charged to avoid interruptions. Poco C40 Frp Dft Pro
, typically running Android 11 with MIUI 13, features Factory Reset Protection (FRP). This security layer requires the original Google account credentials after a factory reset to prevent unauthorized use of lost or stolen devices. For technicians and advanced users, the offers a professional way to manage this lock. What is DFT Pro Tool? Technicians often use the "One-Click" method within DFT
: FRP removal typically erases all user data; verify if any essential files can be backed up first. FRP Bypass Using DFT Pro This security layer requires the original Google account
DFT Pro is a specialized Android servicing software used for high-level operations like FRP removal, IMEI repair, and flashing. Unlike general tools, it provides brand-specific support for Xiaomi, Samsung, and Huawei, and is compatible with Qualcomm, MediaTek, and Unisoc chipsets. It is frequently updated to handle newer security patches on modern Android versions. Preparing for the Process Before attempting to bypass FRP on a , ensure the following requirements are met:
: Install the DFT Pro Tools Driver to ensure stable communication between the PC and the phone.
Do you want more older versions? Check out older versions of RAPTOR here
Did you know RAPTOR has modes? By default, you start in Novice mode. Novice mode has a single global namespace for variables. Intermediate mode allows you to create procedures that have their own scope (introducing the notion of parameter passing and supports recursion). Object-Oriented mode is new (in the Summer 2009 version)
RAPTOR is freely distributed as a service to the CS education community. RAPTOR was originally developed by and for the US Air Force Academy, but its use has spread and RAPTOR is now used for CS education in over 30 countries on at least 4 continents. Martin Carlisle is the primary maintainer, and is a professor at Texas A&M University.
Below handouts are by Elizabeth Drake, edited from Appendix D of her book, Prelude to Programming: Concepts and Design, 5th Edition, by Elizabeth Drake and Stewart Venit, Addison-Wesley, 2011. Linked here with author's permission.
Comments, suggestions, and bug reports are welcome. If you have a comment, suggestion or bug report, send an email to .
David Cox has put together a user forum at http://raptorflowchart.freeforums.org. This provides a place for users to exchange ideas, how tos, etc. Note however, that feedback for the author should be sent by email rather than posting on this forum.
Randy Bower has some YouTube tutorials at http://www.youtube.com/user/RandallBower. You can also search YouTube for "RAPTOR flowchart".
The UML designer is based on NClass, an open-source UML Class Designer. NClass is licensed under the GNU General Public License. The rest of RAPTOR, by US Air Force policy, is public domain. Source is found here. RAPTOR is written in a combination of A# and C#. Unfortunately, I don't have the time to provide support on compilation issues