void

Keyword used to indicate that a function returns no value. Each function must either return a value of a specific datatype or use the keyword void to specify it returns nothing.

• void setup() { // setup() does not return a value
   size(200, 200);
  }
  
  void draw() { // draw() does not return a value
   line(10, 100, 190, 100);
   drawCircle();
  }
  
  void drawCircle() { // This function also does not return a value
   ellipse(30, 30, 50, 50);
  }
  

• void function {
• statements
• }

• functionany function that is being defined or implemented
• statementsany valid statements