Read the data in processing

im trying to read data from arduino via Xbee Api mode (xbee pro s2b). i dont know how to program in processing at all. like make a graph or just display the data. please anybody help me. is there a tutorial that can help me with an explanation?? or anybody willing to give a little program??
my code in arduino :

#include “XBee.h”
/*
This example is for Series 2 XBee
Sends a ZB TX request with the value of analogRead(pin5) and checks the status response for success
*/

// create the XBee object
XBee xbee = XBee();

// we are going to send two floats of 4 bytes each
uint8_t payload[4] = { 0, 0, 0, 0};

// union to convery float to byte string
union u_tag {
uint8_t b[4];
float fval;
} u;

// SH + SL Address of receiving XBee
XBeeAddress64 addr64 = XBeeAddress64(0x0013a200, 0x406F4973);
ZBTxRequest zbTx = ZBTxRequest(addr64, payload, sizeof(payload));
ZBTxStatusResponse txStatus = ZBTxStatusResponse();

int statusLed = 13;
int errorLed = 13;

void flashLed(int pin, int times, int wait) {

for (int i = 0; i < times; i++) {
digitalWrite(pin, HIGH);
delay(wait);
digitalWrite(pin, LOW);

if (i + 1 < times) {
delay(wait);
}
}
}

void setup() {
pinMode(statusLed, OUTPUT);
pinMode(errorLed, OUTPUT);
xbee.begin(9600);
}

void loop() {
float h = 1.034; //for example i send float = 1.034
{

u.fval = h;
for (int i=0;i<4;i++){
payload_=u.b*;_
_
}*_

* xbee.send(zbTx);*

* // flash TX indicator*
* flashLed(statusLed, 1, 100);*

* // after sending a tx request, we expect a status response*
* // wait up to half second for the status response*
* if (xbee.readPacket(500)) {*
* // got a response!*

* // should be a znet tx status *
* if (xbee.getResponse().getApiId() == ZB_TX_STATUS_RESPONSE) {
_
xbee.getResponse().getZBTxStatusResponse(txStatus);*_

* // get the delivery status, the fifth byte*
* if (txStatus.getDeliveryStatus() == SUCCESS) {*
* // success. time to celebrate*
* flashLed(statusLed, 5, 50);*
* } else {*
* // the remote XBee did not receive our packet. is it powered on?*
* flashLed(errorLed, 3, 500);*
* }*
* }*
* } else if (xbee.getResponse().isError()) {*
* //nss.print("Error reading packet. Error code: "); *
* //nss.println(xbee.getResponse().getErrorCode());*
* } else {*
* // local XBee did not provide a timely TX Status Response – should not happen*
* flashLed(errorLed, 2, 50);*
* }*
* }*
* delay(1000);*
}
[/quote]
i convert float to byte string
// union to convery float to byte string
union u_tag {
* uint8_t b[4];
_ float fval;
} u;
then
float h = 1.034 u.fval = h;
for (int i=0;i<4;i++){
payload=u.b;*

i wanna show the data in PC and i use processing but i dont know at all.
please anybody help me to convert back from byte string to float and show in processing.
Thanks in advance._

i wanna show the data in PC and i use processing but i dont know at all.

You want to show what data on the PC? You are not sending any data to the PC.

you want to show what data on the PC? You are not sending any data to the PC.

check again i send float :

float h = 1.034; //for example i send float = 1.034