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How to determining File Length in java

Jonas Stuart 2036 06-Jul-2016
Hi Guys 

I am beginner in java programming .I want to know that how to write program for determining file length.

Thanks
java java 
Updated on 06-Jul-2016
Jonas Stuart

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1 Answers

Manoj Bhatt

Manoj Bhatt

06-Jul-2016

The program for determining the length of a file is given in here:

 public
class FileLength {
                     public static void main(String[] args) {
                             int count = 0;
                             InputStream streamReader = null;
                             if (args.length < 1) {
                                      System.out.println("Usage:java FileLength <filename>");
                                      System.exit(0);
                             }
                             try {
                                      streamReader= new FileInputStream(args[0]);
                                      while(streamReader.read() != -1) {
                                                count++;
                                      }
                                      System.out.println(args[0]+ " length = " + count);
                                      streamReader.close();
                             } catch (FileNotFoundException fe) {
                                      System.out.println("File" + args[0] + " was not found");
                                      System.exit(0);
                             } catch(IOException ie) {
                                      System.out.println("Error reading file");
                             } finally {
                                      try {
                                                streamReader.close();
                                      } catch (Exception e) {
                                                e.printStackTrace();
                                      }
                             }
                     }
}
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