A problem with TEXT READING from a file

Question

Hi all,
I've been trying to parse a text file, read it line by line and then write it line by line in another file. I use BufferedReader and BufferedWriter.
However, it seems that at each line it doesn't read the first character!!! How is this possible?
Here is my piece of code:
public class ParseMDL {
     public BufferedReader readMDL;
     public BufferedWriter writeMDL;
     public ParseMDL() {
          try {
               writeMDL = new BufferedWriter(new FileWriter("mdlOUT.mdl", true));
          } catch (IOException e) {
               System.out.println("Exception: Error with the output .mdl file!");
          try {
               readMDL = new BufferedReader(new FileReader("subsystemblock.mdl"));
          } catch(FileNotFoundException e) {
               System.out.println("Exception: Input .mdl file cannot be found!");
     public void executeMDLScanner() {
               String strIN, strOUT = null;
               try {
                    while(readMDL.read() != -1) {     
                         strIN = readMDL.readLine();
                         System.out.println(strIN);
                         if(strIN.contains("MaskPromptString")) {
                                   strOUT = "\t " + "MaskPromptString" + "\t     " + "newENTRIESSSS";
                                   System.out.println(strOUT);
                         //else just copy the line
                         else {
                              strOUT = strIN;
                         try {
                              writeMDL.write(strOUT);
                              writeMDL.newLine();
                         } catch (IllegalArgumentException e) {
                              System.out.println("Exception: Illegal Argument Exception");
                    writeMDL.close();
                    readMDL.close();
               } catch(IOException e) {
                    System.out.println("Exception: IO exception!");
}THANK YOU!
Message was edited by:
Pesho_318i
Message was edited by:
Pesho_318i

Answer 1

Don't do this:while (readMDL.read() != -1) { // <-- reads the first character of the line
    strIN = readMDL.readLine(); // <-- reads the rest of the lineInstead do something like this:while ((strIN = readMDL.readLine()) != null) { // <--- reads all the line in one shot
    ...Regards