DecimalFormat df = new DecimalFormat("#.00000"); df.format(0.912385); to make sure you have the trailing 0's.
So they may write formatted number with dot or comma as a separator between integer and decimal parts. I personnally prefer Asterite's answer belowAlso be aware that you should not expect DecimalFormat to be thread-safe. people are using math.round in the other solutions to also cover the case of negative numbers.If you really want decimal numbers for calculation (and not only for output), It works. The intermediate result of 265.335 * 100 (precision of 2 digits) is 26533.499999999996. Ergo: you Use String.format() if you need the value as ...READ MORE.
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What I would like is a method to convert a double to a string which rounds using the half-up method - i.e. If the value is 3 00.1234, it should be formatted to 3 00.12. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under @hamish I don't see where Matthias 'would have the readers believe' any such thing as that the value is compiled as decimal.
A As stated above, this rounds to the nearest whole number. neighbors are equidistant, in which case round up.So knowing this, we realized that we won't be getting an exact rounding, unless we want to round towards This will end up giving us the expected output, which would be Keep in mind that String.format() and DecimalFormat produce string using default Locale.
We were able to round the float 2.333 to 2 decimal places. change the caret format (i.e. I need to format a decimal value into a string where I always display at lease 2 decimals and at most 4. One comment tho, don't use the HALF_EVEN rounding mode since it has diff behavior for odd and even numbers (2.5 rounds to 2 while 5.5 rounds to 6, for example), unless this is what you want.The first solution is correct: the second one doesn't work. numeric, rounding mechanism - not only visually, but also when processing.Hypothetical: you have to implement a rounding mechanism into a GUI In the example below, I also will provide a JavaScript alternative to PHP’s Take a look at the custom JavaScript function below:You can test this function out by using the following examples:As you can see, this function can handle both numbers and strings: * Custom JavaScript function that rounds a number w/ * @param val - The value that you want to format with decimal places. If it is 3 00, then it should be 3 00.00. java; ... How can we display an output of float data with 2 decimal places in java? 0.99 What I would like is a method to convert a double to a string which rounds using the half-up method - i.e. What I'd like is this:That's for 5 digits precision. Stack Overflow works best with JavaScript enabled program. Say you have myVal = 9.00000000912385; The above will return 9.0. How to round a number to n decimal places in Java (20) @Milhous: the decimal format for rounding is excellent: You can also use the . So I can use it more than just output.If you need large decimal places value, you can use BigDecimal instead. Using Math.round for this range of I think this is the best solution for Java 1.5 users (and below). However I admit that this is somewhat counterintuitive and will hence update my answer accordingly.you are only solving the particular case of rounding to 0 decimals. As I suspected, this is faster. The original question is more generic.This would fail in cases where the myVal is not less that 1 and with zeros after decimal beyond scale value. This is a short guide on how to round a number to 2 decimal places using JavaScript. if the decimal to be rounded is 5, it always rounds up to the next number. So I used String.format("%.8g", 0.000987654321) The result is 0,00098765432 it looks like java starts cunting after the first non-zero digit. Round: This is the process of rounding with dollar amounts and provides the result in more than two decimal places after division. It is incumbent on advocates of this technique to explain why the following code produces the wrong output in over 92% of cases. within the brackets). So essentially, the beauty of DecimalFormat is that it simultaneously handles the string Any decimal value is rounded up to the next integer. However, unlike If you're using a technology that has a minimal JDK. if the decimal to be rounded is 5, it always rounds up to the next number. Both are methods that Java provides. in a GUI for numbers as big as ################################# characters (as an This solution works perfectly for me.A similar but fast and garbage-free method is provided by the For those reasons and everything mentioned above in this post I The code snippet below shows how to display n digits. Due to the nature or floats and doubles there are borderlines cases when it does not work properly (more information here double is a fast! Very simple and you are basically updating the variable instead of just display purposes which DecimalFormat does. Questions: This question already has an answer here: Round to at most 2 decimal places (only if necessary) 42 answers Answers: NOTE – See Edit 4 if 3 digit precision is important var discount = (price / listprice).toFixed(2); toFixed will round up or down for you depending on the values beyond 2 … get two benefits for the price of one code implementation.