An 64-bit double can represent integer +/- 253 exactly
Given this fact I choose to use a double type as a single type for all my types, since my largest integer is ... |
How do I prevent String.format("%.2f", doubleValue); from rounding off (round half up algorithm) instead of just truncating it?
e.g.
doubleValue = 123.459
after formatting,
doubleValue = 123.46
I just want to discard the last digit,
123.45
I know ... |
This code:
System.out.println(String.format("%f", Math.PI));
System.out.println(Math.PI);
produces that result on my computer:
3,141593
3.141592653589793
Why does the first line print float number with comma while the second one uses dot?
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I am trying to print a double value. It is printing in matissa and exponent format, which is not what I want. For example, my program prints 1.234567E6 for the value ... |
The value 13.10 is printed as 13.1 in my jasper report , I want to print it as 13.10 itself , How to do it .The corresponding JRXML statement is
<textFieldExpression class="java.lang.Float"><![CDATA[$F{temp_bill_tax}]]> ...
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I live in Belgium. And generally, we write our floats like this (in Math): 3,141592
And that is also the result when I format the float.
EDIT: Sorry, I was wrong:
System.out.println(String.format("%f", 3.141592));
So, the ... |
I have a variable of type double, I need to print it in upto 3 decimals of precision but it shouldn't have any trailing zeros...
eg. I need
2.5 // not 2.500
2 ...
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I use this code in my project which is independent from other project.
float trg1 = 2.3f;
String.format("%.2f",tgr1).replace(",", ".");
When I insert this in other project which is depends from other project I get ... |
I want to validate the float type data. I get the rules defined as
int precision1 = 3;
int precision2 = 2;
The above rule indicates the data format should be of 999.99
The expected ... |
How can I format the output of a float or a double number using the public void println() method like: f = 3.151416123f; System.out.println(f); I want to see: % 3.15 Only with two numbers, is this posible? Does it works like C's fprintf("%2f"); ??? or something? Any answer would be apreciate Thanks Zkr Ryz. |
hello , i have a little problem with formatting my float values. i have following float values: float omni_basisvertrag = 0; float omni_basisprovision = 0; float omni_relation = 0; after a few sql selections i calculate a percent value: omni_relation = (omni_basisprovision*100) / omni_basisvertrag); the omni_relation is now something like 9.8897473587, but i want 9.89 . can anybody help please andreas ... |
I checked it but I couldn't get what I want ! The API documentation includes an example of the code used to format a number in different ways. It also includes a link to Sun's tutorial on the subject. Perhaps you could post a small example using the techniques illustrated that shows your problem. If it doesn't compile cut and post ... |
Hello friends. I am trying to format with String.format a format value. I want the following thing: When I have a number 12,561 that format to "12,56", and when I have 12 that format to "12" not "12,00". If I use String.format ("%.2f", (float) 12), I get "12,00", but i want "12". Can anybody say to me how to solve it?. ... |
guy.bashan wrote: So why is this working fine (removed new Float("90000.6")): NumberFormat nf1 = NumberFormat.getInstance(Locale.US); System.out.println(nf1.format(90000.6)); and gives back: 90,000.6 What can't be represented here exactly? is it pretty straight and simple number: 90000.6 Ok, now try to represent it in base two (a.k.a binary). Tell me how many digits you'll need to represent it exactly and then check how many ... |
How do you find out if a float (or a number) is in expotential format? For example: float x = .0005 converting x to a String gives you : 5.0E-4 Basically I want to know 2 things: 1. How can I find out if this String is in expotential format? 2. How do make the float print .0005 and not 5.0E-4 ... |
Im trying to format a float in a JTable thats been taken from an SQL database, heres what ive got: { float price = results.getFloat(5); row = new Vector(); row.addElement(new String(results.getString(1))); row.addElement(results.getString(2)); row.addElement(results.getInt(3)); row.addElement(results.getInt(4)); row.addElement(""+ (price)); rows.addElement(row); } so i've given the getFloat(5) a variable name 'price' - how do i format the float 'price' to two decimal places, like 0.00? ... |