java-类的加载流程

 1 public class F {
 2     static {
 3         System.out.println("f static");
 4     }
 5 
 6     private static int a = me();
 7 
 8     private static int me() {
 9         System.out.println("f static field");
10         return 1;
11     }
12 
13     public F() {
14         System.out.println("f cons");
15     }
16 }
17 
18 ---
19 public class S extends F {
20     static {
21         System.out.println("s static");
22     }
23 
24     private static int s = mew();
25 
26     private static int mew() {
27         System.out.println("s static field");
28         return 0;
29     }
30 
31 
32     public S() {
33         System.out.println("s cons");
34     }
35 
36     public static void main(String[] args) {
37         System.out.println("a main");
38         S s = new S();
39     }
40 }

执行结果

f static
f static field
s static
s static field
a main
f cons
s cons

类在加载的时候先执行静态部分的代码,先执行静态代码块还是静态字段需要根据顺序来执行,谁排前边谁先执行