Java tutorial
import java.util.TreeMap; public class Main { public static void main(String[] args) { TreeMap<Integer, String> treemap = new TreeMap<Integer, String>(); TreeMap<Integer, String> treemapclone = new TreeMap<Integer, String>(); // populating tree map treemap.put(2, "two"); treemap.put(1, "one"); treemap.put(3, "three"); treemap.put(6, "six"); treemap.put(5, "from java2s.com"); // cloning tree map System.out.println("Cloning tree map"); treemapclone = (TreeMap) treemap.clone(); System.out.println("Original map: " + treemap); System.out.println("Cloned map: " + treemapclone); } }