有以下程序 public class Test1 { public static void main(String[] args) { int a = 5, b = 4, c = 3, d = 2; if (a > b > c) System.out.println(d); else if ((c - 1 >= d) == 1) System.out.println(d + 1); else System.out.println(d + 2); } } 执行后输出结果是 ()