How to scan an array and compare an input to the elements of the array

Question

I'm trying to make a decimal to binary converter and this part of code is just a test sample. In this test program, I want to print out each element of the array and I just can't seem to make the program do that.

Here is my current code:

int[] nums = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
    int dec;
    int out = 0;
    Scanner scan = new Scanner(System.in);

    System.out.println("Type decimal number.");
    dec = scan.nextInt();

    for( nums[out] = nums[out] ; out < 16 ; out++ );
    {
            System.out.println(out + "\n");//I want to print each element just to test my code .
    }

This is the output I get:

16

Where I should be getting this:

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Can someone please show me what I'm doing wrong?

Answer 1

You are getting only 16 because there is a ; at the end of for loop.

for( nums[out] = nums[out] ; out < 16 ; out++ );

If you remove it, ur code will should work. By the way you should consider changing the code as PNS suggested.

Answer 2

If you want to print contents of the nums array, just initialize the out parameter in the for loop:

for (int out = 0; out < nums.length ; out++);
{
   System.out.println(nums[out] + "\n");
}

If you want to print the number read via Scanner , do that directly:

System.out.println(dec + "\n");

The above, of course, does not do any conversion, nor does it do any comparison, so if something like that is required, the question needs to be clarified.