Remove comma

[phantom06]

I will be getting input from the user and will print the results to a file. The file is like this:
123,
45,
82,
23,
12,

I want to remove the comma of the last input number, which is in this case is number 12. So i want it to be like this:
123,
45,
82,
23,
12

How do i remove the comma? Thank you

[sunde887]

Try using an if clause which tests if it's the last item being put into the file, then just print the number, else print the number with a comma.

[j2me64]

an other approach is to loop through your collection only to the length - 1 and adding the comma and outside the loop print only the last number without the comma. look at the following example:

public class CommaExample {
	public static void main(String[] args) {
		int[] arr = { 1, 2, 3, 4 };
		int i = 0;
		for (i = 0; i < arr.length - 1; i++) {
			System.out.println(arr[i] + ",");
		}
		System.out.println(i + 1);
	}
}