// General form:  type variablename = intial_value ;
// These first two are variable declaratons
float x;
float y = 8; // This assignment sets an initial value for y
// This is an assignment
x = 15;
// This next line calls the function named println
println(x/y);

String message = "Does this work now?";
println(message);
println("Here's the message.  It's not stored in a variable");
if(x > 10){ // { and } denote the "then" for the if
   println("X is larger than 10!");
   if(y < 100){
       println("X is larger than 10 and y is smaller than 100"); 
   }
}

float pool_depth = 8, pool_length = 20, pool_width = 10;
float pool_volume = pool_depth * pool_length * pool_width;
float pool_gallons = pool_volume * 7.48;
println("pool_galons = " + pool_gallons);
float gallons_per_day = 7.5;
float days = pool_gallons / gallons_per_day;
println("It will take the horse " + days + " days to empty the pool");
float month_empty = (pool_gallons/30) / gallons_per_day;
println("To empty your pool in a month, you need " + month_empty + " horses");

size(1000, 1000);
line(100, 100, 500, 500);