1 2 public class First { 3 4 public static void main(String args[]) { 5 int sum = 0; 6 7 First f = new First(); 8 f.foo(); 9 10 for (int i = 1; i < 10; i++) { 11 int x, y; 12 x = i + 1; 13 y = i + 1; 14 sum = sum + x + y + 1; 15 } 16 System.out.println(sum); 17 } 18 19 public void foo() { 20 System.out.println("Hi there!"); 21 } 22 } 23