学习编程思想
1 package com.test.java.classs;
2
3 /**
4 * Created by Administrator on 2015/12/7.
5 * 在类的内部,变量定义的顺序决定了初始化的顺序。
6 * 变量会在任何方法(包含构造器)被调用之前得到初始化
7 */
8 public class Variable {
9 public static void main(String[] args) {
10 House house = new House();
11 house.f();
12 }
13
14 }
15
16 class Window{
17 public Window(int n) {
18 System.out.println("window-"+n);
19 }
20 }
21
22 class House{
23 //1
24 Window w1 = new Window(1);
25
26 public House() {
27 //4
28 System.out.println("house()");
29 //5
30 w4 = new Window(44);
31 //6
32 Window w2 = new Window(2);
33 }
34 //2
35 Window w3 = new Window(3);
36 void f(){
37 System.out.println("f()");
38 }
39 //3
40 Window w4 = new Window(4);
41
42 }
结果:
window-1 window-3 window-4 house() window-44 window-2 f()