一个典型的例子如下:
<span style="font-size:18px;">public class Test { public static int k = 0; public static Test t1 = new Test("t1"); public static Test t2 = new Test("t2"); public static int i = print("i"); public static int n = 99; public int j = print("j"); { print("构造块"); } static{ print("静态块"); } public Test(String str){ System.out.println((++k)+":"+str+" i="+i+" n="+n); ++i; ++n; } public static int print(String str){ System.out.println((++k)+":"+str+" i="+i+" n="+n); ++n; return ++i; } public static void main(String...strings){ Test t = new Test("init"); } }</span>
程序执行结果如下:
<span style="font-size:18px;">1:j i=0 n=0 2:构造块 i=1 n=1 3:t1 i=2 n=2 4:j i=3 n=3 5:构造块 i=4 n=4 6:t2 i=5 n=5 7:i i=6 n=6 8:静态块 i=7 n=99 9:j i=8 n=100 10:构造块 i=9 n=101 11:init i=10 n=102</span>