pls solve all thank you!

Covers Ch. 7, 8, 9 & 10 1. Provide definitions or 1-line answer for following: (15 points) a. What would the valid subscript values be in a four-element array of doubles? b. When array is passed to method as argument via method call, will a new copy of array be created or reference to original array is passed to the method? c. Can array size declarator can be a negative integer expression? d. Which operator is used to access a data field or invoke a method from an object? e. What is an accessor method? f. What is a mutator method? g What are the naming conventions for accessor methods and mutator methods? h. If a class contains only private data fields and no setter method, is the class immutable? i. Describe the role of this keyword? j. What is the difference between a class and an instance of class? k. What are the differences between constructors and methods? 1. What is the difference between an instance field and a static field? m. What action is possible with static method that isn't possible with an instance method