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use Android studio and use java AppB: The idea of the application is a box and at the bottom of it a keyboard that the application will run in the vertical position using a numeric keypad 0-9 and a
use Android studio and use java
AppB: The idea of the application is a box and at the bottom of it a keyboard that the application will run in the vertical position using a numeric keypad 0-9 and a clear button on the right side to delete the entrance number.