Exception occuring while i'm trying to convert decimal to Hex

Question

Hello all you genius people, please help me out. I'm using this simple code(given below) to read String from a file then convert it to Hex and write in anoher file. But i'm getting this exception that, after reading few lines it gives such exception:
java.lang.NumberFormatException: For input string: "2826111134"
import java.io.*;
public class DecimalToHexConv {
  String line;
  String hexEsn;
  String temp;
  int esn=0;
  public DecimalToHexConv(){
  try{
    FileWriter fwr = new FileWriter("CTGHLR201005_out.txt");
    BufferedReader bfr = new BufferedReader(new FileReader("testin.txt"));
    while((line=bfr.readLine())!=null){
      line= line.replace('|',';');
      String spl[] = line.split(";");
      esn = Integer.parseInt(spl[2].toString().trim());
      hexEsn = (Integer.toHexString(esn)).toUpperCase();
      temp= spl[0]+"|"+spl[1]+"|"+hexEsn+"\n";
      System.out.print(temp);
      fwr.write(temp);
    fwr.close();
  catch(Exception e){
    System.out.println("Exception: "+e);
  public static void main(String[] args) throws Exception {
    DecimalToHexConv dtc = new DecimalToHexConv();
}output:
4702181500|11800467|2FA42C8B
4702825345|11704172|620A4CFC
4703200000|11200000|52B53DB9
4703200001|11200001|52156AC7
Exception: java.lang.NumberFormatException: For input string: "2826111134"
testin.txt:
4702181500|11800467|799288459
4702825345|11704172|1644842236
4703200000|11200000|1387609529
4703200001|11200001|1377135303
4703200046|11200046|2826111134
4703200000|11200000|1387609529
4703200001|11200001|1377135303
So after converting first 4 lines i got the exception. Please hep me out.. that what is wrong???
Regards
Sahrear

Answer 1

But i'm getting this exception that,
after reading few lines it gives such exception:
java.lang.NumberFormatException: For input string:
"2826111134"It's because the biggest number an int can hold is 2147483647. You can use long insted. It can hold bigger numbers but understand that it has an upper limit too.