How to store LinkedList in Map

How to store LinkedList in Map

  August 13, 2017    

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Tag : store string according to length in map

Code:
import java.util.*;
import java.lang.*;
import java.io.*;
class mapll
 {
public static void main(String args[])
{
HashMap<Integer,LinkedList<String>> map=new HashMap<Integer,LinkedList<String>>();
Scanner ab=new Scanner(System.in);
int n=5;
while(n-->0)
{
String str=ab.next();
int len=str.length();
if(map.containsKey(len))
{
LinkedList<String> l=map.get(len);
l.add(str);;
map.put(len,l);
}
else
{
 LinkedList<String> l=new LinkedList<String>();
 l.add(str);
map.put(len,l);
}
}
for(Map.Entry<Integer,LinkedList<String>> itr:map.entrySet())
{
System.out.println(itr.getKey()+" ");
LinkedList<String> l=itr.getValue();
Iterator<String> it=l.listIterator();
while(it.hasNext())
{
System.out.println(it.next());
}
}

 }}