convert number to string

Hi, I would like to insert by the user some numbers and send those numbers to a function that would check the numbers.
my code is like that:

Code:

---

chooseNum = scan.next(); // the user type a numbers
String [] chooseNun1 = chooseNum.split("");
for (int j = 0; j < chooseNun1.length; j++)
    {               
        System.out.println("choose:" + chooseNun1[j]);
    }

---

but for some reseaon the first character is empry
Can anyone help me with that?

Thanks,Elen

Use the length and charAt methods of String.

Edit: If what you really wanted was to split the string on "nothing", as it looks like in that code. If that code actually contains a space, rather than an empty String, than remember that if the String starts with a space (i.e. the separator) then the first element of the String array will be an empty String, which is also the case if you really did attempt to split on the empty String. This is because the String starts with the separator character, but the separator character should only come after the "field, so the first field must be an empty String.

You are splitting a String on an empty String; formally every String starts with an empty String hence the empty Strings in the result.

kind regards,

Jos

I'm not sure I'd use split("") here. Why not convert the String to a char array:

Code:

---

    char[] chars = chooseNum.toCharArray();
    for (char c : chars) {
      System.out.println("char: " + c);
    }

---

edit: I seem to be a bit slow on the uptake today!

that is my problem, my string doesn't contain any empty character but still when I'm printing the result it gives me the first character empty.

Quote:

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Originally Posted by wizard_oz

that is my problem, my string doesn't contain any empty character but still when I'm printing the result it gives me the first character empty.

---

Then again don't use split. You've been given several good options above. Why not try and use one of them?

Quote:

---

Originally Posted by wizard_oz

that is my problem, my string doesn't contain any empty character but still when I'm printing the result it gives me the first character empty.

---

There are no empty characters; there are empty Strings i.e. Strings that don't contain any characters at all but there are no empty characters. A character may not be printable using a certain Font but that is just a matter of display; remember: there are no empty characters, never.

kind regards,

Jos

thanks I'll try it

ok now I would like to send some parameters to a function that will check the numbers

Quote:

---

char[] chars = chooseNum.toCharArray();
for (char c : chars)
{
// System.out.println("char: " + c);
p.check(findArr[i], i, c);
i++;
}

---

when i run it I get an error messeage like:
"Exception in thread "main" java.lang.Error: Unresolved compilation problem:
The method check(int, int, String) in the type Mmn11q2 is not applicable for the arguments (int, int, char)

"

ok i got my problem and I solved it
thanks