Decimal Place Problem

[Timothy Sam]

Hi guys, I can't get the right decimal format to print on my screen. Here's an example.

Zoom Percentage: 9/128 = 0.0
Zoom Percentage: 7/26 = 0.0
Zoom Percentage: 5/26 = 0.0
Zoom Percentage: 7/19 = 0.0
Zoom Percentage: 2/19 = 0.0
Zoom Percentage: 3/18 = 0.0
Zoom Percentage: 2/18 = 0.0
Zoom Percentage: 1/14 = 0.0
Zoom Percentage: 2/14 = 0.0
Zoom Percentage: 1/12 = 0.0
Zoom Percentage: 0/12 = 0.0
Zoom Percentage: 0/14 = 0.0
Zoom Percentage: 5/14 = 0.0
Zoom Percentage: 3/13 = 0.0
Zoom Percentage: 0/13 = 0.0
Zoom Percentage: 0/9 = 0.0
Zoom Percentage: 0/9 = 0.0
Zoom Percentage: 0/10 = 0.0
Zoom Percentage: 1/10 = 0.0
Zoom Percentage: 1/5 = 0.0

The quotient always print as 0.0 where something like 9/128 should equal 0.0703125. Why is it? Here's the method where I do this stuff...

public String getZoomPercentage() 
{
NumberFormat numberFormat = NumberFormat.getInstance();
numberFormat.setMaximumFractionDigits(2);

float zoomPercentage;

try
{
zoomPercentage = Long.parseLong(zoomClicks) / ( Long.parseLong(views) == 0 ? 1 : Long.parseLong(views) );

System.out.println("Zoom Percentage: " + zoomClicks + "/" + views + " = " + zoomPercentage);
}
catch(Exception ex) //java.lang.ArithmeticException: / by zero
{
ex.printStackTrace();
zoomPercentage = 0;
}

return numberFormat.format(zoomPercentage);
}

Thank you for your kind answers...

[Jesper de Jong]

zoomPercentage = Long.parseLong(zoomClicks) / ( Long.parseLong(views) == 0 ? 1 : Long.parseLong(views) );

In this line, you are doing an integer division, not a floating point division (even though zoomPercentage is a float). The result of the integer division is 0 and that's converted to a float.

Convert at least one of the numbers in the division to a float:

zoomPercentage = ((float) Long.parseLong(zoomClicks)) / ( Long.parseLong(views) == 0 ? 1 : Long.parseLong(views) );

[Timothy Sam]

Hi! Thanks! The solution worked perfectly!