Question

What is an Enhanced for Loop suitable for?

a) Iterating through some elements of an array
b) Iterating through all elements of an array
c) Iterating through a Collection class
d) Iterating through an ArrayList

Answer 1

An Enhanced for Loop is suitable for iterating through all elements of an array or a collection such as a Collection class or an ArrayList. It allows for efficient and clear iteration by automatically going through each element without the need for an index or iterator.

Step-by-step explanation:

An Enhanced for Loop, also known as a for-each loop, is a specialized loop in programming that is particularly suited for iterating through all elements of an array or a collection, such as an ArrayList or any other type that implements the Iterable interface. It simplifies the iteration process by eliminating the need for an index or iterator.

Here are a few examples of where an Enhanced for Loop can be used:

• Iterating through all elements of an array: It loops through each element of the array one by one.
• Iterating through a Collection class: It can be used with collection classes like Lists, Sets, and Queues, which are part of the Java Collections Framework.
• Iterating through an ArrayList: Similar to other collections, it allows for simplified traversal of all the elements in an ArrayList.

It is not typically used to iterate through only some elements of a collection, as it automatically iterates over all elements, making option (a) incorrect.