Delete a character in a file

Question

i have to delete a single char in a txt file. i'm working with this method:
public static void remChar(File inFile, char charToRem) throws IOException{          
if (!inFile.exists()) return;
BufferedReader in = new BufferedReader(new FileReader(inFile));
PrintWriter out = new PrintWriter(new FileWriter("/newFile.txt"));
String line = null;
while ((line = in.readLine()) != null) {
     int i=0;
     char[] check = line.toCharArray();
     while (i!=check.length-1) {
if (check==charToRem) {
     int j=0;
     for (j=i;j<check.length-1;j++)
     check[j]=check[j+1];
     line = check.toString().substring(0,line.length()-1);
     i++;
     else
     i++;
out.println(line);
out.flush();
out.close();
in.close();
but with this code i always receive a java.lang.StringIndexOutOfBoundsExeption: String index out of range.
How can i correct this code? Thank you!

Answer 1

this is one most easily understandable program. Kindly note that there are more methds to achieve the results, i am posting the most simple one as far as i know:
public class StrDelete
  public static void main(String[] args) throws Exception
    char srch='a';
    File f=new File("temp.txt");
    byte[] bt=new byte[(int)f.length()];
    FileInputStream fis=new FileInputStream(f);
    fis.read(bt);
    StringBuffer sb=new StringBuffer(new String(bt));
    System.out.println("The old content is:\n");
    for(int i=0;i<sb.length()-1;i++)
     if(sb.charAt(i)==srch)
     System.out.print(sb.charAt(i));
     sb.deleteCharAt(i);
     else
     System.out.print(sb.charAt(i));
    fis.close();
System.out.println("\n");
   System.out.println("The new data is:"+sb.toString()+"\n");
   FileOutputStream fos=new FileOutputStream(f);
   fos.write(sb.toString().getBytes());
   fos.close();
}