TreeMap remove(Object key) method in java
import java.util.TreeMap;
public class TreeMapRemoveMethodExample
{
public static void main(String[] args)
{
TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
tm.put(32, "pineapple");
tm.put(51, "watermelon");
tm.put(38, "grapes");
tm.put(69, "mango");
tm.put(58, "apple");
System.out.println("Given TreeMap is: " + tm);
// remove existing key mapping
String strReturn = (String)tm.remove(38);
System.out.println("Returned value is: " + strReturn);
System.out.println("New TreeMap is: " + tm);
}
}