How to get the total number of lines of a file ?

To get total number of lines of a file, use LineNumberReader

Example

FileReader fr = new FileReader(new File("xyz"));

LineNumberReader lnr = new LineNumberReader(fr);

int n = 0;

while (lnr.readLine() != null){

    n++;

}

System.out.println("Total number of lines : " + n);

lnr.close();