Home » Author Archives: Yifan Peng

Author Archives: 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.

How to create a Web Application Project with Java, Maven, Jetty

In this article, we create a simple web application with the Maven Archetype plugin. We’ll run this web application in a Servlet container named Jetty, add some dependencies, write simple Servlets, and generate a WAR file. At the end of this article, you will also be able to deploy the service in Tomcat. System requirements Java SE Development Kit 8 ...

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Resolve coreference using Stanford CoreNLP

Coreference resolution is the task of finding all expressions that refer to the same entity in a text. Stanford CoreNLP coreference resolution system is the state-of-the-art system to resolve coreference in the text. To use the system, we usually create a pipeline, which requires tokenization, sentence splitting, part-of-speech tagging, lemmarization, named entity recoginition, and parsing. However sometimes, we use others ...

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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 clear error messages. Creating Mocks To create a mock using Mockito, simply annotate mocks with @Mock and call MockitoAnnotations.initMocks(this).       import org.mockito.Mock; import org.mockito.MockitoAnnotations; public class FooClassTest { @Mock mockFoo; ...

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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 illustrate the problem, consider the following example: There has been an increasing effort in recent years to extract relations between entities from natural language text. In this dissertation, I will ...

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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 studies. As once a Java student, I realize the most effective way of learning a new program language is through examples: copy and paste a piece of codes, run it ...

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