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[学Java/C#] about“ Using JAVA by reversion. ”question

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catherine330 发表于 2016-8-31 11:29:37 | 显示全部楼层 |阅读模式

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Implement a SubstringGenerator that generates all substrings of a string. For example, the substrings of the string "rum" are the seven strings
"r", "ru", "rum", "u", "um", "m", ""
Hint: First enumerate all substrings that start with the frst character. There are n of them if the string has length n. Then enumerate the substrings of the string that you obtain by removing the frst character.  Using JAVA by reversion.

本人刚接触JAVE 对这样的问题实在找不到头绪。

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