Webpublic static double round (double num, int places) { BigDecimal b = new BigDecimal (Double.toString (num)); b = b.setScale (places, RoundingMode.HALF_UP); return b.doubleValue (); } public static void main (String args []) { double pi = 3.14159265359; double oneThird = 1.0/3.0; double g = 9.807f; pi = round (pi, 4); oneThird = round … WebJava provides the following three ways to display double in 2 decimal places: Using DecimalFormat ("0.00") Using String.format () Method ("%.2f") Using BigDecimal Let's …
How to limit decimal places in Java - TutorialCup
WebJul 30, 2024 · Java 8 Object Oriented Programming Programming Set width in output as shown below. Here, %10 sets a 10 character field System.out.printf ("d1 = %10.2f d2 = %8g", d1, d2); Above, the value after the decimal is for decimal places i.e. 5.3 is for 3 decimal places − System.out.printf (" d1 = %5.3f d2 = %2.5f", d1, d2); The following is an example − WebJava Basic Input and Output Example 1: Round a Number using format public class Decimal { public static void main(String [] args) { double num = 1.34567; System.out.format ("%.4f", num); } } Output 1.3457 In the above program, we've used the format () method to print the given floating-point number num to 4 decimal places. gemini woman fashion
7 ways to format double to 2 decimal places in java
WebFeb 9, 2024 · The double precision type has a range of around 1E-307 to 1E+308 with a precision of at least 15 digits. Values that are too large or too small will cause an error. Rounding might take place if the precision of an input number is too high. Numbers too close to zero that are not representable as distinct from zero will cause an underflow error. WebJun 4, 2024 · You can use DecimalFormat. One way to use it: DecimalFormat df = new DecimalFormat (); df.setMaximumFractionDigits (2); System.out.println (df.format (decimalNumber)); Another one is to construct it using the #.## format. I find all formatting options less readable than calling the formatting methods, but that's a matter of preference. WebOutput:-. Enter a double value 6.8972 The double value entered is 6.8972 Enter the precision or scale value 3 The rounded off BigDecimal value is 6.90. In the above program, we set the scale or precision value with the help of the MathContext class in Java. Then the object of this class is passed as a parameter to the round method which returns ... ddx for abd pain