decimalformat

I have custom DecimalFormat in Edittext's addTextChangedListener method, everything is working perfectly but when I change language (locale) my addTextChangedListener is not working. double answer = inputDouble * counterToDouble; DecimalFormat df = new DecimalFormat("##.########"); // df=(DecimalFormat)numberFormat; df.setRoundingMode(RoundingMode.DOWN); answer = Double.parseDouble(df.format(answer)); unicoinsAmmount.setText(String.valueOf(df.format(answer))); I searched about my problem and found a NumberFormat solution: NumberFormat numberFormat = NumberFormat.getNumberInstance(Locale.US);

Please help. I get this error after the prompts from the Scanner are displayed to the console: Exception in thread "main" java.util.IllegalFormatPrecisionException: 2 at java.util.Formatter$FormatSpecifier.checkInteger(Unknown Source) at java.util.Formatter$FormatSpecifier.<init>(Unknown Source) at java.util.Formatter.parse(Unknown Source) at java.util.Formatter.format(Unknown Source) at java.io.PrintStream.format(Unknown Source) at java.io.PrintStream.printf(Unknown Source) at Project6.main(Project6.java:56) Is the problem coming from the printf? I've checked the formatting, and it looks

<cfset number1 = 20.5/80 * 100 /> <cfset number2 = 18.125 /> <cfset number3 = 6.875 /> <cfoutput> DecimalFormat(#number1#): #DecimalFormat(number1)#<br /> DecimalFormat(#number2#): #DecimalFormat(number2)#<br /> DecimalFormat(#number3#): #DecimalFormat(number3)# </cfoutput> OUTPUTS: DecimalFormat(25.625): 25.62 DecimalFormat(18.125): 18.13 DecimalFormat(6.875): 6.88 RATHER THAN OUTPUTING: DecimalFormat(25.625): 25.63 DecimalFormat(18.125): 18.13 DecimalFormat(6.875): 6.88 It seems that a variable that is the result of a mathematical calculation makes DecimalFormat() behave differently. Any

> signif(1.89,digits=2) [1] 1.9 I'd like to have 1.8 This is a bit clunky, but it will work and keep everything numeric: x <- 1.829380 trunc.dec <- function(x,n) { floor(x*10^n)/10^n } Result: trunc.dec(x,1) #[1] 1.8 trunc.dec(x,2) #[1] 1.82 trunc.dec(x,3) #[1] 1.829 trunc.dec(x,4) #[1] 1.8293 bumbumpaw > format(round(1.20, 2), nsmall = 2) [1] "1.20" > format(round(1, 2), nsmall = 2) [1] "1.00" > format(round(1.1234, 2), nsmall = 2) [1] "1.12" try this variation from this article so you can have more samples. 来源： https://stackoverflow.com/questions/24601887/r-change-decimal-place-without-round

I am having problems using DecimalFormat when I am going to print out coefficients after a regression. Here is the part of the code that is facing problems; DecimalFormat twoDForm = new DecimalFormat("0.00"); private double s(double d){ return Double.valueOf(twoDForm.format(d)); } and here is the error message in eclipse; Exception in thread "main" java.lang.NumberFormatException: For input string: "0,16" at sun.misc.FloatingDecimal.readJavaFormatString(Unknown Source) at java.lang.Double.valueOf(Unknown Source) at model.ARF2.s(ARF2.java:126) at model.ARF2.printBestModel(ARF2.java:114) at

I would like to remove all trailing zeros without truncating or rounding the number if it doesn't have any. For example, the number could be something like 12.0 , in which case, the trailing zero should be removed. But the number could also be something almost irrational, like 12.9845927346958762... going on an on to the edge of the screen. Is there a way to setup DecimalFormat or some other class to cut of trailing zeros, while keeping the irrationality intact? If you are willing to switch to BigDecimal , there is a #stripTrailingZeroes() method that accomplishes this. You can use String