Java Programs Made Easy

Q)... HashMap with regnum as key and mark as value. find the avg of marks whose key is odd.
input:{12:90,35:90,33:90,56:88}
output:avg of(90+90) =90

1. package Set1;
2. import java.util.*;
3. public class ClassSet16 {
4.  public static int averageOfMarks(Map<Integer,Integer> m1){
5.   int n=0,c=0;
6.   Iterator<Integer> i=m1.keySet().iterator();
7.   while(i.hasNext()){
8.    Integer b=i.next();
9.    if(b%2!=0){
10.     c++;
11.     n+=m1.get(b);} }
12.   return (n/c); 
13.  }
14.  public static void main(String[] args) {
15.   Map<Integer,Integer> m1=new HashMap<Integer,Integer>();
16.   m1.put(367, 89);
17.   m1.put(368, 98);
18.   m1.put(369, 92);
19.   m1.put(366, 74);
20.   m1.put(365, 67);
21.   System.out.println(averageOfMarks(m1));
22.  }
23. }