Storage and Retrieval

Sequentially append data cost O(n) -> index comes Any index slows down writes, because the index also needs to be updated every time data is written -> well-chosen index

对于以下代码的执行结果还是有点儿在我意料之外的,经过stackOverFlow的解释,对java中Override的方法有了一点新的认识,之前的理解还是不够深入.

第一次换工作，对我来说，需要的勇气比想象中要多。从已经十分熟悉的环境中跳入几乎一切未知，即从Comfort Zone中将自己抽出，我希望能够尽快进入角色，也希望能尽量利用到积累的3年工作经验，所以给自己设定的目标为2-3周可独立上手工作，特此在这里记录下每周的历程。

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