Please make sure that its in JAVA and there are comments explaining the code. Make sure there are multiple files and include the negative numbers.

$1.$ TestScores ClassWrite a class named TestScores. The class constructor should accept an array of test scores as its argument. The class should have a method that returns the average of the test scores. If any test score in the array is negative or greater than $100,$ the class should throw an IllegalArgumentException. Demonstrate the class in a program.

$2.$ TestScores Class Custom Exception Write an exception class named InvalidTestScore. Modify the TestScores class you wrote in Quesrion $1$ so that it throws an InvalidTestScore exception if any of the test scores in the array are invalid.$$