Light
A regular array is a fixed-size collection of elements of the same data type. It is created using square brackets and can store primitive types or objects.
An index refers to the position of an element in an array. It starts at 0 and goes up to the size minus one.
Initialization is the process of assigning values to elements in an array when it is created.
Traversal means visiting each element in an array, usually done using loops.