Held: Wednesday, 3 September 2014

Back to Outline 03 - An Introduction to Java Development. On to Outline 05 - Unit Testing.

Summary

We begin our real exploration of Java by reading and correcting some code.

Related Pages

• Reading: Basics of Object-Oriented Problem Solving
• Reading: An Introduction to Java
• Reading: Simple Java for C Programmers
• Lab: Reading Java
• EBoard 4 (Source 4) (HTML 4)

Overview

• Some notes on Java.
• Lab: Simple Code Reading (more or less).
• Reflection.

Administrivia

• Thursday at 11 am, I will hold a review session. It's an opportunity for you to ask anything (primarily about this class, but if there aren't questions about this class, I'll answer other CS questions).

Upcoming Work

• HW 3 distributed. Due next Tuesday.
  • I will let you choose whether I assign partners or you assign partners.
• Daily lab writeup: http://bit.ly/207writeup
• Reading for Friday:
  • Unit Testing

Extra Credit Opportunities

• Note: Please send a short (one paragraph) reflection on any extra credit activity you attend. And reflect, don't summarize.

Academic

• CS extra Thursday: Adam Arsenault on his work at FSF.
• CS table Friday: The Mythical Man-Month.

Peer Support

• Men's Soccer, Today, 5pm

Miscellaneous

• Second-year students get extra credit for doing the second-year science retreat on Sept. 20..
  
  • Email will go out today or tomorrow.

A few more notes on Git

You may find it more convenient to use the following commit command, which doesn't open the editor.

git commit -m "*message*"

I'll admit that I prefer to open the editor and see a quick list of the changes I'm committing. (I also often write multi-line commit messages.)

Some notes on Java

• Yes, you'll find that Java looks a lot like C.
• Some big differences:
  • Everything goes in a class.
  • You have to indicate protection levels.
  • You have to give main parameters.
  • When you're treating Java like C, you need to put static before function (method) and global (field) declarations.
  • Java is much more sensitive about types.

Lab: Simple Code Reading

Do the lab on code reading and correction.

Reflection

What have you learned about Java?

Java looks a lot like C. What did you see as the big differences?