Writing our first program
Let’s write our first program! Type the line below into the Processing text editor:
You should see this on your screen:
If you are typing and nothing shows up, make sure the text editor is focused by clicking your cursor anywhere on the white part (this is the text editor) to select it. You should now be able to type into it.
Let’s run your program! Click on the Play icon on the top of the Processing window:
You should see a new window with a circle in it:
Congratulations! You just wrote your first program.