Using android studio application for the solving, it's related to mobile application course 1)

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There are for questions, if you can solve any one please let me know

Design an android app to display whether the entered integer is negative, zero or positive. Extend the class work completed on 21- Feb-2021 by adding Sub(from the big to small) and Mul(multiply) buttons with appropriate actions. Accept an integer and display the multiplication table. Design an android app which accepts your name and the age, then display whether the sum of length of your name and age is odd or even along with the sum in a click of a Submit button