About Yifan Peng

Yifan is a senior CIS PhD student in University of Delaware. His main researches include relation extraction, sentence simplification, text mining and natural language processing. He does not consider himself of a Java geek, but all his projects are written in Java.

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Using regex to hanging indent a paragraph in Java

This post shows how to hanging indent a long paragraph using regular expression. The method will consider word boundaries, which means it will not break words for the indentation. To ...
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Java.io in nutshell: 22 case studies

This post attempts to cover a comprehensive set of operations in java.io. Compared with other books and blogs related to this topic, my motivation is to show “how-to” through case ...
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Most efficient way to increment a Map value in Java – Only search the key once

This question may be considered too basic, but is frequently asked in the forums. In this post, I will discuss one way that only searches the key in Map ONCE. Let’s first look at ...
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How to read CSV files in Java – A case study of Iterator and Decorator

In this post, I will talk about how to read CSV (Comma-separated values) files using Apache Common CSV. From this case study, we will learn how to use Iterator and Decorator in context ...
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