javawc

The Java Word Count ia a Java application built with the purpose of showcasing the usage of some Java 8 features, e.g. Streams, Lambdas. This application is very similar to Linux 'wc' tool, which basically display some statistics related to one file (number of lines, words, etc).

Requirements

• Java 8

Usage

This application requires to set up JAVA_HOME env variable and you also need gradle. But don't worry because you don't need to download Gradle to start using it. This project is configured to use the Gradle Wrapper which is a Gradle feature which allows a developer to execute the build without having to manually install Gradle, which also makes your build more reliable since you don't need to worry about dependencies and versions and, as a developer, you only need to focus on writing your code.

When running gradlew command, all the project dependencies will be automatically downloaded and the build process started.

So, just run gradlew for start building your application:

$ ./gradlew

After that, you are ready to run your javawc application. Then go to folder /build/install/JavaWC/bin and run ./wc <filename>.

$ ./wc file.txt
Lines: 16
Words: 16
average letters per word: 5.00
most common letter: l

Generate distribution package (.zip and .tar)

You can find a distribution package in both .zip and .tar format under the /build/distribution folder which contains the source code, documentation, binaries and script files for running this application.

They are organized in the following folders:

• bin: script files (.bat or binary)
• lib: javawc binaries (.jar & .jar dependencies)
• src: source code
• javadoc: javadoc

Project Structure

This project was designed using NetBeans IDE 8.1 with JDK 8.

• The application root package is com.oracle.javawc
• main method for running this application as a standalone one can be found in the com.oracle.javawc.main.Main class.
• the logic for reading the file from the file system is available in the com.oracle.javawc.entities.shell.FileLoader class.
• the logic for calculating the statistics is available in the com.oracle.javawc.entities.shell.WordCount class.