public class XXK2 { private final int a; public XXK2(int a) { this.a=a; } public int f1(int x) { if(x%2==1) return 2*(a+x); else return 3*a+x; } public int get() { return a; } public static void main(String[] args) { XXK2 x=new XXK2(8); int y=x.f1(20); y+=x.get(); System.out.println("y="+y); } } 程序运行的结果是y= ( )。