Java Programs Made Easy

Q).. A number is given as input. 
Find the odd digits in the number,
 add them and find if the sum is odd or not.
if even return -1, if odd return 1
input:52315
logic:5+3+1+5=14(even)
output:-1
input:1112
logic:1+1+1=3(odd)
output:1

1. package Set1;
2. public class ClassSet1 {
3.  public static int SumOfOddsAndEvens(int n){
4.   int n1,n2=0,n3;
5.   while(n!=0)
6.   {
7.    n1=n%10;
8.    if((n1%2)!=0)
9.     n2+=n1;
10.    n/=10;
11.   }
12.   if(n2%2==0)
13.    n3=-1;
14.   else
15.    n3=1;
16.   
17.   return n3; 
18.  }
19.  public static void main(String[] args) {
20.   int n=12346;
21.   System.out.println(SumOfOddsAndEvens(n));
22.  }
23. }