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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Hosting a Maven repository on github (with sources and javadoc)

How to make a small open sourced library available to other developers via maven? One way is to deploy it on Maven Central Repository. What I’d like to do is to deploy it to github, ...
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Mockito 101

Mockito is a mocking framework that lets you write beatiful tests with clean and simple API. It biases toward minimal specifications, makes different behaviors look different, and displays ...
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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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