1. Introduction
2. Reading from a file
3. The File Class
4. Writing to a file
5. Parsing lines of a file
6. ArrayLists and arrays
7. Reading data
8. Polylines
9. Using an ArrayList
10. Reading a file into an ArrayList

Introduction

The objectives of this lab are to:

• Review the basics of reading and writing text files from Java.
• Apply your Scanner knowledge to parse a text file.
• Read the data from a text file into an ArrayList of objects.

Your first step is to create a new project in your workspace, named project6. Inside that project, create a package lab6.

The working directory in Eclipse

Since we will be working with files, we'll need to know where they are. Before you begin, use Windows File Explorer (or OS X Finder) to find the directory for your Eclipse workspace and look inside it. You should see a directory for each project you've created, including the directory project6 created above. When you run your code from Eclipse, it uses the project directory as the working directory.

Take a moment and download each of the sample files for this lab and put them into the project directory project8.

• story.txt
• scores.txt
• test.txt
• hello.txt