2023_09_28 - Dutton-Christian-Robotics/Learning-to-Code GitHub Wiki

Review

• Kahoot!

Tour

• Variables (REMEMBER)
  • hold pieces of information
  • types: string, double, boolean, array, object instances
  • naming: camel case, snake case, kebab case, Pascal case
  • declaration, assignment, initialization
• Function/Method calls (ORGANIZE / DO)
  • make things happen
  • arguments (what we give it) and parameters (what it wants)
    • example of power for motors
  • return value
• Explain OOP
  • class / object / instance: like a cookie cutter and cookies
  • inheritance
  • methods / properties
  • @Override
• Basic parts of an OpMode / Java class—a program within a program
  • lines end with a semicolon
  • runOpMode
  • things we "inherit": HardwareMap
• Things to note
  • motor direction
  • motor power
  • waitForStart() / stages of an OpMode
  • sleep()

Activities

• Run the code as it is
• Make it drive backwards
• Make it turn

Concepts

• DRY: Don't Repeat Yourself
  • more repetitive code = more opportunities for small mistakes
  • more repetitive code = harder to made broad changes
• Writing reusable methods
• scope