problem about bigdecimal-Collection of common programming errors


  • the Tin Man
    rubygems bundle bigdecimal gemfile
    I’m using Bundle to install gems in d:/cucumbertests/cucumber/ successfully, which installs BigDecimal v 1.1.0. This failed in d:/cucumbertests/cucumber/itinfix which installed BigDecimal v 1.2.0.How do I identify the correct version of BigDecimal in my Gemfile in d:/cucumbertests/cucumber/itinfix? Why is the version of BigDecimal correct in d:/cucumbertests/cucumber? The latest version is 1.2.0, found by running gem query –remote –name-matches bigdecimal is:REMOTE GEMS:bigdecimal (1.2.0) bigd

  • David James
    java bigdecimal floating-point-precision
    I have an XSD that requires me to use a BigDecimal for a lat/lon. I currently have the lat/lon as doubles, and convert them to BigDecimal, but I am only required to use about 12 places of precision. I have not been able to figure out how to set that. Can anyone help me with this?

  • PazoozaTest Pazman
    javascript bigdecimal
    I am using bigDecimal.js:https://github.com/iriscouch/bigdecimal.jsin my node.js project server side with no problems however when I try the same on the client I can’t seem to reference the bigDecimal object correctly. On the github page it has a link: http://jhs.iriscouch.com/demo/_design/bigdecimal/_show/ui?e=321.4567890*123456789.123456789987654321I have a link to bigdecimal.js in my html:<script src=”/javascripts/bigdecimal.js” type=”text/javascript”></script>and the script is d

  • Eric Leschinski
    java double bigdecimal
    In Java, I want to take a double value and convert it to a BigDecimal and print out its String value to a certain precision. import java.math.BigDecimal; public class Main {public static void main(String[] args) {double d=-.00012;System.out.println(d+””); //This prints -1.2E-4double c=47.48000;BigDecimal b = new BigDecimal(c);System.out.println(b.toString()); //This prints 47.47999999999999687361196265555918216705322265625 } }It prints this huge thing:47.4799999999999968736119626555591821670532

  • user1514499
    java bigdecimal
    I tried the following code. but getting different result when subtracting using BigDecimal. double d1 = 0.1;double d2 = 0.1;System.out.println(“double result: “+ (d2-d1));float f1 = 0.1F;float f2 = 0.1F;System.out.println(“float result: “+ (f2-f1));BigDecimal b1 = new BigDecimal(0.01);BigDecimal b2 = new BigDecimal(0.01);b1 = b1.subtract(b2);System.out.println(“BigDecimal result: “+ b1);Result: double result: 0.0 float result: 0.0 BigDecimal result: 0E-59I am still working on this. can anyone pl

  • JoJo
    java bigdecimal
    I have the following code in Java;if (selectPrice.compareTo(new BigDecimal(“0.00”)) == 0){return true;}What is the best way to write the IF condition?

  • Roman C
    java bigdecimal round
    Possible Duplicate:Addition for BigDecimal I feel like I’m missing something obvious, but cannot figure out what it is. I’m trying to use BigDecimal to get the decimal portion of a division between two numbers. A very simple case, 1.00 divided by 3.00 should be 0.(3) repeating. However, I keep getting a result of 1.00.BigDecimal num = new BigDecimal(1.00).setScale(2); BigDecimal divisor = new BigDecimal(3.00).setScale(2);num.divide(divisor, BigDecimal.ROUND_HALF_UP);System.out.print(num);My res

  • Nathan Hughes
    java websphere nullpointerexception bigdecimal
    Running Java application on IBM WebSphere caused such exception:Caused by: java.lang.NullPointerException at java.math.BigDecimal.add2DFP(BigDecimal.java:1946) at java.math.BigDecimal.add(BigDecimal.java:1881) at com.somepackage.components.view.PremiumSummaryViewModel.setPremiums(PremiumSummaryViewModel.java:101)Null check is done. As I reviewed java.math.BigDecimal class has no such method add2DFP and does not call one either. Maybe it’s specific to IBM’s JDK.Any comment on this would be apprec

  • Aprian
    java android bigdecimal
    I’m currently using BigDecimal and here is one of my implementation for getting a number with 2 precision:mDbHelper.open();BigDecimal total = mDbHelper.getTotal(Type.Income, “20130101 12:00:00”, “20131231 12:00:00”);BigDecimal expense = mDbHelper.getTotal(Type.Expense, “20130101 12:00:00″,”20131231 12:00:00”);BigDecimal saving = mDbHelper.getSaving(“feb”);mDbHelper.close();BigDecimal remaining = total.subtract(expense.add(saving));Log.d(“total get”, total.toPlainString());Log.d(“expense get”, ex

  • Oleg Mikheev
    java bigdecimal result
    I’m running into a strange java bug using the intValue() from the BigDecimal class.I’m starting with a value of 3300028000.When I call the following code:int i = d.intValue();it returns: -994939296Any ides as to why this would happen?

  • X.L.Ant
    java exception bigdecimal exponent
    this is my first question asked in this forum, so if question is novice please advice.I receive the user input through EditText, hence it is a charsequence/string. then i created BigDecimal to hold that value. it handles exponents also gracefully without any trouble. but problem is when user enters values like 1.1E+ (without any trailing exponent value), code crashes in this piece of code. but it works when input is like this 1.1E+2EditText edit_text_left; Editable editable_val_text; …. editab

  • mtk
    java bigdecimal
    I using the following code and i added the support for big decimal and the compiler show error on the create object for the big decimal new BigDecimal(nextRandom),how can I overcome it?All the other types are working as expected.public static SwitchInputType<?> switchInput(final String typeName, final String memberName, final int cnt, boolean random) { … } else if (typeName.equals(“decimal”) || (typeName.equals(“java.math.BigDecimal”))) {BigDecimal nextRandom = RandomizeValues.nextRandom

  • blawzoo
    ruby-on-rails bigdecimal
    Why do I get nil can’t be coerced into BigDecimal when I try to perform a calculation: here’s the code: model/drink.rbclass Drink < ActiveRecord::Basebelongs_to :menu before_save :total_amount def total_amountself.total_amount = self.price * self.quantity end model/menu.rbclass Menu < ActiveRecord::Basehas_many :drinks, :dependent => :destroyaccepts_nested_attributes_for :drinks, :allow_destroy => true#Validationsend*Drink is the (nested)child model and Menu the parent model When I a

  • Apples
    gwt bigdecimal
    I am trying to use the stripTrailingZeros() method of BigDecimal in GWT but it looks as if it is not supported by the JRE emulator. In the GWT dev mode console I get the following:[ERROR] Errors in file… LINE 585: The method stripTrailingZeros() is undefined for type BigDecimalI am using GWT 2.0.4. Does anybody else have this issue.

  • Scott Severance
    javascript bigdecimal
    Main questionI’m using this BigDecimal, and I’m trying to create a new MathContext object to pass to BigDecimal’s divide() method. But everything I’ve tried throws exceptions saying that it’s undefined. Here are some examples of things I’ve tried that don’t work:context = new MathContext(); // ReferenceError: MathContext is not defined context = new BigDecimal.MathContext(); // TypeError: undefined is not a function context = new BigDecimal.prototype.Ma

  • n000b
    java algorithm bigdecimal
    This is a problem from CodeSprint3 https://cs3.interviewstreet.com/challenges/dashboard/#problem/50877a587c389 Basically the problem is to calculate the number of possible combinations,nCr for given n and r.Also, 1 <= n <= 1000000000 and 0 <= r <= n. Output all answers modulo 142857.Since 6C4=6!/4! 2!=6*5/2! =6*5/2*1I thought overflow could be avoided using division at every step.That is to start with value of n (n is 6 in this case). Decrement n and multiply it with previous va

  • user1707455
    java biginteger bigdecimal
    I am trying to take a text file with fractions on it. Convert the fractions from strings to bigdecimal. Then divide and store the results on a stack. Each line in the txt file is one fraction which was randomly generated with the char ‘/’ separating the numerator and denominator. The numerator and denominator can be of length 1-50 and must be greater than 0. The numbers are generated randomly resulting in the need of storing decimal places. In my code I convert the string to BigInteger first and

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