Your First Program

  • Open a new sketch (File/New)

  • There are a number of buttons on the top (Run, Save etc.) and a large area where you type in your program commands. Type in the line:

size(100,300);

Helpful Links

  • Run the program by clicking on the “RUN” button on the top of the sketch (triangle pointing to the right -it looks like the play button on a video).

  • Congrats! You wrote your first program. You should see a tall skinny window appear on your screen, 100 pixels wide by 300 pixels tall.

  • Try making the window a different size.

  • Remove the semicolon at the end of the line - what happens?

  • Change the code to make a screen that is 400 pixels wide and 50 pixels tall.

  • Save your program.

  • Read about the size() function in the Processing Reference (in Processing look under HELP/Reference).