Compilation error in the line  Map<Integer, String> map = new HashMap<Integer, String>();

import java.util.*;
 
public class MapDemo {
  public static void main(String args[]) { 
    String days[]={"Sunday", "Monday", "Tuesday", "Wednesnday",
                         "Thursday", "Friday", "Saturday"};
    Map<Integer, String> map = new HashMap<Integer, String>();
 
  try{
  for(int i=0; i<7; i++){
    map.put(i, days[i]);
  }
  
  TreeMap tMap=new TreeMap(map);
     //Rerieving all keys
    System.out.println("Keys of tree map: " + tMap.keySet());
    //Rerieving all values
    System.out.println("Values of tree map: " + tMap.values());
    //Rerieving the First key and its value
    System.out.println("First key: " + tMap.firstKey() + 
                  " Value: " + tMap.get(tMap.firstKey()) + "\n");
      
    //Removing the first key and value
    System.out.println("Removing first data: " 
                          + tMap.remove(tMap.firstKey()));
    System.out.println("Now the tree map Keys: " + tMap.keySet());
    System.out.println("Now the tree map contain: " + tMap.values() + "\n");
    //Rerieving the Last key and value
    System.out.println("Last key: " + tMap.lastKey() + 
                       " Value: " + tMap.get(tMap.lastKey()) + "\n");  
    //Removing the last key and value
    System.out.println("Removing last data: " + tMap.remove(tMap.lastKey()));
    System.out.println("Now the tree map Keys: " + tMap.keySet());
    System.out.println("Now the tree map contain: " + tMap.values());
  }
  catch(Exception e){}
  }
}