The java.util.Comparator interface in Java provides a way to compare objects and define custom ordering or sorting rules. It contains two main methods: compare() and equals(). The compare() method compares two objects and returns a negative integer, zero, or a positive integer depending on whether the first object is less than, equal to, or greater than the second object. The equals() method checks for equality between two objects. Comparator can be used to sort collections or define custom ordering in data structures such as TreeSet or TreeMap. It allows developers to control the sorting order of objects based on specific criteria that are not supported by their natural ordering.
Java comparator - 3 examples found. These are the top rated real world Java examples of java.util.comparator extracted from open source projects. You can rate examples to help us improve the quality of examples.