1 package fengke.hashcode;
2 /**
3 * 详细讲明了null 与new class()的区别;
4 * 分清了static与construction的运行关系;
5 * @author 锋客
6 *
7 */
8
9 public class StacticAndConstructionTest {
10
11 public static int a = 0;
12
13 static {
14 a = 10;
15 System.out.println("父类的静态代码块在执行a=" + a);
16 }
17
18 {
19 a = 8;
20 System.out.println("父类的非静态代码块在执行a=" + a);
21 }
22
23 public StacticAndConstructionTest() {
24 this("a在父类带参构造方法中的值:" + StacticAndConstructionTest.a); // 调用另外一个构造方法
25 System.out.println(a);
26 System.out.println("父类无参构造方法在执行a=" + a);
27 }
28
29 public StacticAndConstructionTest(String n) {
30 System.out.println(n);
31 System.out.println(a);
32
33 }
34
35 public static void main(String[] args) {
36 StacticAndConstructionTest tsc = null;
37 System.out.println("new操作:");
38 tsc = new StacticAndConstructionTest();
39 }
40
41 }