The print() function writes to the console area, the black rectangle
at the bottom of the Processing environment. This function is often helpful
for looking at the data a program is producing. The companion function
println() works like print(), but creates a new line of text
for each call to the function. More than one parameter can be passed into the
function by separating them with commas. Alternatively, individual elements
can be separated with quotes ("") and joined with the addition operator
Using print() on an object will output null, a memory location that may look like "@10be08," or the result of the toString() method from the object that's being printed. Advanced users who want more useful output when calling print() on their own classes can add a toString() method to the class that returns a String.
Note that the console is relatively slow. It works well for occasional messages, but does not support high-speed, real-time output (such as at 60 frames per second). It should also be noted, that a print() within a for loop can sometimes lock up the program, and cause the sketch to freeze.
String s = "The size is "; int w = 1920; int h = 1080; print(s); print(w, "x", h); // This program writes to the console: // The size is 1920 x 1080
print("begin- "); float f = 0.3; int i = 1024; print("f is " + f + " and i is " + 1024); String s = " -end"; println(s); // This program writes to the console: // "begin- f is 0.3 and i is 1024 -end"
(byte, boolean, char, int, float, String)data to print to console
(Object)list of data, separated by commas
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.