How do I implement an iterator in Java?

How do I implement an iterator in Java?

To implement an iterator in Java, you need to create a class that implements the Iterator interface.

What methods do I need to override?

You need to override the hasNext() and next() methods to provide the iteration logic.

Can you give me a simple code example?

Sure! Here's a basic example:

import java.util.Iterator;

class MyIterator implements Iterator<Integer> {
    private int[] numbers;
    private int index;

    public MyIterator(int[] numbers) {
        this.numbers = numbers;
        this.index = 0;
    }

    public boolean hasNext() {
        return index < numbers.length;
    }

    public Integer next() {
        return numbers[index++];
    }
}