Conditionals 2

/**
 * Conditionals 2. 
 * 
 * We extend the language of conditionals from the previous
 * example by adding the keyword "else". This allows conditionals 
 * to ask two or more sequential questions, each with a different
 * action. 
 */

size(640, 360);
background(0);

for (int i = 2; i < width - 2; i += 2) {
    // If 'i' divides by 20 with no remainder
    if ((i % 20) == 0) {
        stroke(255);
        line(i, 80, i, height / 2);

    // If 'i' divides by 10 with no remainder
    } else if ((i % 10) == 0) {
        stroke(153);
        line(i, 20, i, 180); 

    // If neither of the above two conditions are met
    // then draw this line
    } else {  
        stroke(102);
        line(i, height / 2, i, height - 20);
    }
}