Calculator App : https://drive.google.com/file/d/1lTaa35jePA_beJi4l0qDwPaOYUEFLAM5/view?usp=sharing
Age Calculator App : https://drive.google.com/file/d/1M7q187Su8dsskfHseITeXv6pd0ZoYZEU/view?usp=sharing
Store Student Detail in LocalDatabase : https://drive.google.com/file/d/10cULjHOIA7pzNJT3UjRljuPN4LmZj4EA/view?usp=sharing
StopWatch using Android Service : https://drive.google.com/file/d/1Bs0azy9R-oiuHTMUf1c8fylqyahuujPv/view?usp=sharing