Java is a computer programming language. Iteration, on the other hand, is the activity of repeating a feedback process, usually with the goal of approaching a desired goal or outcome. And what combines them? Next I will tell you about Java iteration
Repeat once for a subroutine* (a set of instructions) that needs to be executed repeatedly in a Java program, that is, repeated execution Looping in a program until a certain condition is met is called Java iteration.
When it comes to Java iteration, what we have to mention is Java’s iterator pattern.
Iterator mode, also called cursor mode.
The Iterator pattern accesses the elements of a collection object in a sequential manner without knowing its underlying representation.
The definition given by GOF is to provide a method to access each element in a container object without exposing the internal details of the object.
The iterator pattern consists of the following roles:
1) Iterator role (Iterator): The iterator role is responsible for defining the interface for accessing and traversing elements.
2) Concrete Iterator: The concrete iterator role must implement the iterator interface and record the current position during traversal.
3) Container role (Container): The container role is responsible for providing an interface for creating specific iterator roles.
4) Concrete Container: The concrete container role implements the interface for creating a specific iterator role - this specific iterator role is related to the structure of the container.
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