Android application to learn English words.

Learned: Android development, Object-oriented programming.

There are 3 virtual flashcard stacks: not-asked, known, unknown. User is asked a word from not-started stack. Then he presses one of two buttons: 'I know' or 'I don't know', flashcard is put on known or unknown stack and User is asked a next word. After emptying not-started stack there starts a next round - the unknown stack became a not-asked stack and game starts again. When the not-started and unknown stacks are empty the game ends and 'Congratulations!' prompt is shown with statistics.

Application is in Polish.