For programming tasks, we can use an Array or an Array List. Describe when using an Array would be a good choice, andDescribe when using an Array List would be a better choice.You must start a thread before you can read and reply to other threads

Both array and Array List are two important data structures in java and frequently used in java programsArray is static you can not change it length once created so it is used when you want to make fixed array once you create array you can not change or you can not accommodate it so it is implemented when you need fixed size array . array does not have more way to iterate we can only use loop eg for , while , enhanced for loop and do while loop to iterate over an array .we can store element but can not remove element in array . array only provide you a length attribute which tells you number of slots in array it does not provide any method to find out how many slots are empty and filled . and it is use when you have to represent multi dimensional array it is really special data structure to represent matrics and @D terrains Array list is internally implemented using an array Array List is a class , it holds all properties of class, you can use array list when you want to create object and call methods array list support generics which allow the compiler to check if all object use in Array list are of correct type . and Array List is more flexible because its dynamic . Array list use clear() and removeAll() which automatically copying rest of the element one index down . if you need array which can resize so it is better to use Array list . it provide a size() method which tells a number of object stored in Array List at a given point of time it is one dimensional so it is better to use in one dimensional