draw gridlines in Processing (first way)

gridlines1

//draw gridlines in Processing (first way)
//this version intentionally does not use loops. It can be made much more concise with loops.
//Natalie Freed August 2014 for Art and Science of Computing

size(1000, 700);
 
line(0, 0, 1000, 0);
line(0, 100, 1000, 100);
line(0, 200, 1000, 200);
line(0, 300, 1000, 300);
line(0, 400, 1000, 400);
line(0, 500, 1000, 500);
line(0, 600, 1000, 600);
 
line(0, 0, 0, 700);
line(100, 0, 100, 700);
line(200, 0, 200, 700);
line(300, 0, 300, 700);
line(400, 0, 400, 700);
line(500, 0, 500, 700);
line(600, 0, 600, 700);
line(700, 0, 700, 700);
line(800, 0, 800, 700);
line(900, 0, 900, 700);
line(1000, 0, 1000, 700);