in scala n explain every step

Question: In a package named "execution" create a Scala class named "VoteCounter" with the following: A constructor that takes a List of Strings representing the possible options for voting A method named addVotes that takes a String and an Int as parameters and returns Unit. This method adds this many votes to the option specified by the string If the option is not in the list given in the constructor, the votes should be ignored Example: vote Counter.addVotes("Boaty McBoatface", 1000) will add 1000 votes to this option if it was listed in the constructor call A method named getVotes that takes an option as a String and returns the total number of votes for this option as an Int If the input is not a valid option, return 0 Testing: In a package named "tests" create a Scala class named "TestVoting" as a test suite that tests all the functionality listed above Question: In a package named "execution" create a Scala class named "VoteCounter" with the following: A constructor that takes a List of Strings representing the possible options for voting A method named addVotes that takes a String and an Int as parameters and returns Unit. This method adds this many votes to the option specified by the string If the option is not in the list given in the constructor, the votes should be ignored Example: vote Counter.addVotes("Boaty McBoatface", 1000) will add 1000 votes to this option if it was listed in the constructor call A method named getVotes that takes an option as a String and returns the total number of votes for this option as an Int If the input is not a valid option, return 0 Testing: In a package named "tests" create a Scala class named "TestVoting" as a test suite that tests all the functionality listed above