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标题: 继承与加载顺序 [打印本页]

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作者: zydandqq    时间: 2014-7-3 19:37
标题: 继承与加载顺序
thinking inJava中有如下代码，但是输出结果有点不清楚
//: Beetle.java
// The full process of initialization.
class Insect {
int i = 9;
int j;
Insect() {
prt("i = " + i + ", j = " + j);
j = 39;
}
static int x1 =
prt("static Insect.x1 initialized");
static int prt(String s) {
System.out.println(s);
return 47;
}
}

public class Beetle extends Insect {
int k = prt("Beetle.k initialized");
Beetle() {
prt("k = " + k);
prt("j = " + j);
}
static int x2 =
prt("static Beetle.x2 initialized");
static int prt(String s) {
System.out.println(s);
return 63;
}
public static void main(String[] args) {
prt("Beetle constructor");
Beetle b = new Beetle();
}
} ///:~
该程序的输出如下：
static Insect.x initialized
static Beetle.x initialized
Beetle constructor
i = 9, j = 0
Beetle.k initialized
k = 63
j = 39

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