Difficult communication with processing

Is it a good use of arrays? Specially for the setup?

const byte buttonPin[] = {15, 14, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}; //array: remplace ce qui est au dessus


// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status
int incomingByte;


void setup() {

  Serial.begin(9600);

  pinMode (buttonPin[15, 14, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13], INPUT);
  
 }

I don't understand how arrays can help me to reduce the size of the void loop code though.

PaulS:
What you need to do is send one value when the switch BECOMES pressed, and another value when the switch BECOMES released. Many orders of magnitude less data that way.

Yeah you're right, processing would be unnecessarily flooded by data in the console. So is there a function that send a understandable signal to processing just once and not 9600 times per second?