java-类初始化与实例初始化

内存执行顺序：
    1. 先完成父类的类初始化
    2. 再完成子类的类初始化
    3. 父类的实例初始化
    4. 子类的实例初始化
When nothing seems to help, I go look at a stonecutter hammering away at his rock, perhaps a hundred times without as much as a crack showing in it. Yet at the hundred and first blow it will split in two, and I know it was not that blow that did it, but all that had gone before. -- Jacob Riis
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原文地址：https://www.cnblogs.com/xhwy-1234/p/12487901.html