import java.util.*;

public class HashMapDemo {

@SuppressWarnings({ "rawtypes", "unchecked" })

public static void main(String[] args) {

// TODO Auto-generated method stub

LinkedHashMap m=new LinkedHashMap();

m.put("chandra",101);

m.put("Anil",302);

m.put("venu",203);

m.put("Dhana",402);

System.out.println(m);

/*System.out.println(m.put("venu",800));

Set s=m.keySet();

System.out.println(s);

Collection c= m.values();

System.out.println(c);

Set s1=m.entrySet();

System.out.println(s1);

Iterator itr= s1.iterator();

while(itr.hasNext()){

Map.Entry m1=(Map.Entry)itr.next();

System.out.println(m1.getKey()+"----"+m1.getValue());

if(m1.getKey().equals("Dhana")){

m1.setValue(2000);

}

// System.out.println(m);

}

System.out.println(m);*/

}

}