Java is a “high-level” computer programming language. High-level languages are more similar to English (or other human languages) than machine code. Programming in binary (ones and zeros) or Assembly would be considered low-level. In this section, we will continue to explore the world of OOP by looking at the example from Student Lesson A1 in more detail.

The key topics for this lesson are:

1. Our First Java Application
2. Program Components
3. Object Declaration, Creation, and Message Sending
4. Class Diagrams
5. The Difference Between Objects and Classes