The Easiest Way to Learn Design Patterns in C#/

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Iterator: Implementation and Example

Iterator: Implementation and Example

Learn the Iterator design pattern by implementing an example program.

We'll cover the following...

Creating a console application

We’ll create a console application project. The first thing that we’ll add to this project is the following interface:

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namespace Iterator_Demo;
internal interface IIterator
{
    bool MoveNext();
    int GetCurrent();
}

This is our Iterator interface. It has two methods: MoveNext() and GetCurrent(). The MoveNext() method will iterate through each collection item and will update the pointer to the current item. It will return true if it’s possible to move to the next item, and false if there are no more items left.

GetCurrent() will retrieve the current value from the collection. For simplicity, ...