Fibonacci series

class Fibonacci
{
 public static void main(String args[])
 {  
  int prev, next, sum, n;
  prev=next=1
  for(n=1;n<=10;n++)
  {
   System.out.println(prev);
   sum=prev+next;
   prev=next;
   next=sum;
  }
 }
}
Output:
1
1
2
3
5
8
13