Let’s learn TreeMap clone() method in java.
TreeMap clone() method in java
clone() method of TreeMap class returns a shallow copy of this TreeMap instance. (The keys and values themselves are not cloned.)
Syntax:
public Object clone()
Now let’s see example on TreeMap clone() method.
import java.util.TreeMap; public class TreeMapCloneMethodExample { public static void main(String[] args) { TreeMap<Integer, String> tm = new TreeMap<Integer, String>(); TreeMap<Integer, String> tmClone = new TreeMap<Integer, String>(); tm.put(60, "apple"); tm.put(10, "banana"); tm.put(50, "cherry"); tm.put(30, "fig"); tm.put(80, "grape"); tm.put(90, "kiwifruit"); // cloning TreeMap System.out.println("Cloning TreeMap: "); tmClone = (TreeMap)tm.clone(); System.out.println("Given TreeMap: " + tm); System.out.println("Cloned TreeMap: " + tmClone); } }
Output:
Cloning TreeMap:
Given TreeMap: {10=banana, 30=fig, 50=cherry, 60=apple, 80=grape, 90=kiwifruit}
Cloned TreeMap: {10=banana, 30=fig, 50=cherry, 60=apple, 80=grape, 90=kiwifruit}
Also read – major features of java