While loop not incrementing java

Question

i'm just starting to learn about java. My while loop does not seem to increment. Here's the snippet of my while loop inside a try and catch:

File file = new File("Reservation.txt");
Scanner sc = new Scanner(file);

    sc.useDelimiter(",");
try {
    while (sc.hasNext()) {
        i = 0;

        newRes[i] = readRec;

        fuN2 = sc.next();
        newRes[i].fullName = fuN2;
        readRec.setFirstName(fuN2);
        System.out.println("\n" + newRes[i].fullName);

        cn2 = sc.next();
        newRes[i].contact = cn2;
        readRec.setContact(cn2);
        System.out.println(newRes[i].contact);

        dt2 = sc.next();
        newRes[i].date = dt2;
        readRec.setDate(dt2);
        System.out.println(newRes[i].date);

        pa2 = sc.nextInt();
        newRes[i].pax = pa2;
        readRec.setPax(pa2);
        System.out.println(newRes[i].pax);

        bt2 = sc.next();
        newRes[i].bday = bt2;
        readRec.setBirthday(bt2);
        System.out.println(newRes[i].bday);

        ch2 = sc.nextInt();
        newRes[i].child = ch2;
        readRec.setChild(ch2);
        System.out.println(newRes[i].child);

        se2 = sc.nextInt();
        newRes[i].senior = se2;
        readRec.setSenior(se2);
        System.out.println(newRes[i].senior);

        pr2 = sc.nextInt();
        newRes[i].j = pr2;
        readRec.setPrice(pr2);
        System.out.println(newRes[i].j);

        dpr2 = sc.nextInt();
        newRes[i].k = dpr2;
        readRec.setDisPrice(dpr2);
        System.out.println(newRes[i].k);
        sc.next();
        sc.nextLine();
        i++;
    }

} catch (NoSuchElementException e)
{
    sc.close();
    System.out.println("===============================");

}

Whenever I try to print out the variable 'i', it always prints out 0, but the it always reads the file correctly and in order.

UPDATE: i removed the i declaration from the while loop, the answer should be below.

Answer 1

The first thing you do inside the loop is to set i to 0 …

So i is incremented at the end of the loop, but that is reverted at the next cycle.

But when printing i, you should get 1 always, not 0, when you print after the loop's execution.

Try this:

var i = 0;
File file = new File( "Reservation.txt" );
Scanner sc = new Scanner( file );

sc.useDelimiter(",");
try 
{
  while (sc.hasNext()) 
  {
    // i = 0; Get rid of this line!!!

    newRes [i] = readRec;

    fuN2 = sc.next();
    newRes [i].fullName = fuN2;

    …

    dpr2 = sc.nextInt();
    newRes [i].k = dpr2;
    readRec.setDisPrice( dpr2 );
    System.out.println( newRes [i].k );
    sc.next();
    sc.nextLine();
    ++i;
  }
} 
catch( NoSuchElementException e )
{
  sc.close();
  System.out.println("===============================");
}