java面试大总结（1）
抽象就是忽略一个主题中与当前目标无关的那些方面，以便更充分地注意与当前目标相关的方面。抽象并不打算理解全面问题，而只是选择其中的一部分，暂时不用部分细节。抽象包括两个方面，一是过程抽象，二是数据抽象。(Abstraction is to ignore those aspects of a topic that have nothing to do with the current goal, so as to pay more attention to the aspects related to the current goal. Abstraction is not intended to understand the overall problem, but only to select part of it, not part of the details for the time being. Abstraction includes two aspects: process abstraction and data abstraction.)
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