Simple TopUp function Android mobile application

Include User Login, Top up page, create new member, check member account detail after topup and create profile

Change your MSSQL detail in the Connection class.
Create a TopUp database,
Add table Staff: UserName nvarchar(50), Password nvarchar(50)
Add table Member: MemberNo int Primary Key Identity Specification->Is Identity->Yes, Name nvarchar(50), Balance decimal (10,2)