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Java Program to get the reverse of the NavigableSet
We will create a NavigableSet collection and add some elements −
NavigableSet<String> set = new TreeSet<>();
set.add("ABC");
set.add("DEF");
set.add("GHI");
set.add("JKL");
set.add("MNO");
set.add("PQR");
set.add("STU");Now, use descendingSet() for the reverse of NavigableSet −
NavigableSet<String>reverse = set.descendingSet();
Example
import java.util.NavigableSet;
import java.util.TreeSet;
public class Demo {
public static void main(String[] args) {
NavigableSet<String> set = new TreeSet<>();
set.add("ABC");
set.add("DEF");
set.add("GHI");
set.add("JKL");
set.add("MNO");
set.add("PQR");
set.add("STU");
NavigableSet<String>reverse = set.descendingSet();
System.out.println("NavigableSet = " + set);
System.out.println("NavigableSet (Reverse) = " + reverse);
}
}Output
NavigableSet = [ABC, DEF, GHI, JKL, MNO, PQR, STU] NavigableSet (Reverse) = [STU, PQR, MNO, JKL, GHI, DEF, ABC]
Updated on: 30-Jul-2019
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