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import java.util.*;

class MapDemo3{

public static void main(String[] args){

Map m=new HashMap();

m.put(1,"ganesha");

m.put(2,"siva");

System.out.println(m);

Set s1=m.keySet();

System.out.println(s1);

Set s2=m.entrySet();

Iterator itr=s2.iterator();

while(itr.hasNext()){

Map.Entry m2=(Map.Entry)itr.next();

System.out.println(m2);

}

}

}