What is the role of the Iterable interface in collection development and traversal?

The Iterable interface in Java defines an object that can be traversed using a for-each loop. It contains the iterator() method, which returns an Iterator object that allows sequential traversal of the collection's elements.

Role of Iterable:

• Provides a unified way to traverse elements in collections.
• Allows the use of for (Element e : collection) syntax for convenience.
• Makes collections compatible with various traversal algorithms.

Example:

List<String> list = Arrays.asList("a", "b", "c");
for (String s : list) {
    System.out.println(s);
}

Here, List implements Iterable, enabling the use of a for-each loop to iterate over the elements.