Not writing to file

Question

Hi,
I have made a program that reads a string, converts it to bytes, then writes to a file.
Well i got the first two working, but its not writing to file. I know it should work cos i have written to file on my previous tests, but when i used a FOR loop it stoped working. Do ya know why. Below is the code...
for (int a = 0;a = bytes.length - 1;a++){
of.write(bytes[a]);
System.out.print(" " + bytes[a] + " : " + bytes.length);
My friend told me to use bytes.length - 1 as it is meant to stop the OUTOFBOUNDS error.
OK,
my regards
Below is the whole program, its a bit messy cos i got lots of old code that i have blocked.
import java.io.*;
import java.awt.event.*;
import javax.swing.*;
import java.lang.String;
public class sender implements Runnable {
int i= 0;
String mes;
int count =0;
int b = 0;
boolean yes = false;
public static void main (String[] arguments) {
Thread th = new Thread (new sender());
th.start ();
//sender();
//while (true){}
public void run() {
try {
Thread.sleep(100);
} catch (InterruptedException e) {}
String mesdialog = JOptionPane.showInputDialog(null,
"Enter your message");
mes = mesdialog.toString();
try {
//FileOutputStream of = new
//FileOutputStream ("send.txt");
FileWriter of = new
FileWriter("send.txt");
//BufferedReader in = new
// BufferedReader(fr);
//while (true){}
int i = 66;
boolean eof = false;
int inChar = 0;
//String inChar;
byte[] bytes = mes.getBytes();
/* < disable / enable
do {
int n=Integer.MIN_VALUE;
try{
n = Integer.parseInt(mes);
} catch (NumberFormatException nfe){
//inChar = n;
if (inChar != -1) {
byte outChar = (byte)inChar* ;
//char outChar = (char)inChar ;
of.write(outChar);
System.out.println("" + outChar);
//of.write(mes,0,20);
} else
eof = true;
} while (!eof);//*/
for (int a = 0;a = bytes.length - 1;a++){
of.write(bytes[a]);
System.out.print(" " + bytes[a] + " : " + bytes.length);
while (!yes) {
if (bytes[b] == 32 )
yes = true;
else {
of.write(bytes);
System.out.print(" " + bytes[b]);
b++;
//System.exit(0);
//outfile.write(input);
} catch (IOException e) {
System.out.print("AAA ERROR");}

Answer 1

your friend was obviously wrong.
for (int a = 0;a = bytes.length - 1;a++){ // that does nothing
of.write(bytes[a]);
System.out.print(" " + bytes[a] + " : " + bytes.length);
}the above "for" loop says :
1:initialize a with 0;
2:do loop while a=bytes.length(<-that's completely wrong. it should be
a boolean expression);
3:for each loop increment "a" by one.
try this:for (int a = 0;a < bytes.length;a++){
of.write(bytes[a]);
System.out.print(" " + bytes[a] + " : " + bytes.length);