Activity name: activity_main.xml Java File: MainActivity.java Write the code needed to initialize binding variable in OnCreate method in MainActivity.java file.

The functionality of each file is described below:Class BankAccount This class has two instance variables:namebalanceCreate a constructor that takes two parameters to initialize the instance variables name and balance. The name must not be an empty string. The name also must not include any numbers or symbols. The balance must be zero or more to be used.If the name was an empty string a Value Error will be raised with the message “name cannot be empty”If the name contained numbers or symbols a Value Error will be raised with the message “name cannot include numbers or symbols”If the name was valid, it will be formatted properly and assigned to the instance variable. The valid name consists of alphabetical characters lowercase or upper case, may include space, underscore or hyphen.The name may consist of first, middle and last name.One way to validate the name is using Regular Expressions.Proper name format is the first character uppercase and the rest of the name lowercase character.…

QUESTION 7 Final data/code constructs are only inheritable once. O True O False QUESTION 8 You can include code in an interface by using the keyword

HappyTunes is an application for downloading music files. Each time a file is purchased, a transaction record is created that includes the music genre and price paid. The available genres are Classical, Easy Listening, Jazz, Pop, Rock, and Other. Develop an application that accepts input data for each transaction and displays a report that lists each of the music genres, along with a count of the number of downloads in each of the following price categories: Over $10.00 $6.00 through $9.99 $3.00 through $5.99 Under $3.00