Question

I want to write a method to round the BMI of the user (float number)to one digit, is the logic correct and how to write it in android Java?

private static final DecimalFormat oneDigit = new DecimalFormat("#,##0.0");
      public static float roundToOneDigit(float paramFloat)
  {  
         float   f = Float.valueOf(oneDigit.format(paramFloat)).floatValue();

          f=f;
         return f;

  }

Answer 1

Try this:

public static String roundToOneDigit(float paramFloat) {
    return String.format("%.1f%n", paramFloat);
}