• • A LinkedHashMap contains values based on the key. It implements the Map interface and extends HashMap class.
• • It contains only unique elements.
• • It contains only unique elements.
• • Insertion order is preserved.

LinkedHashMapDemo.java

import java.util.*;
class LinkedHashMapDemo
{
public static void main(String[] args)
{
LinkedHashMap<Integer, String> hm=new

LinkedHashMap<Integer,String>();
hm.put(100,"Tapuuu");
hm.put(101,"Silan");

hm.put(102,"Akshay");

for(Map.Entry m:hm.entrySet())
{
System.out.println(m.getKey()+" "+m.getValue());
}
}
}

Output

100 Tapuuu
101 Silan
102 Akshay