Answer
Comparable: Natural ordering defined in class.
Comparator: External custom sorting logic.
Both used during sorting.
Comparator: External custom sorting logic.
Both used during sorting.
Quick Answer
Comparable: implemented by the class itself (implements Comparable), defines "natural ordering" via compareTo(). Used by sort() and sorted collections automatically. Comparator: external comparison logic - doesn't modify the class. Pass to sort(), TreeMap, sorted collections. Comparator is more flexible - create multiple comparison strategies. Java 8: Comparator.comparing(Person::getAge).thenComparing(Person::getName).
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SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ