Show only two digit after decimal

Question

How to get the double value that is only two digit after decimal point.

for example

if

i=348842.
double i2=i/60000;
tv.setText(String.valueOf(i2));

this code generating 5.81403333.

But I want only 5.81.

So what shoud I do?

This question is not really a duplicate of http://stackoverflow.com/questions/7415733/how-to-convert-double-to-2-number-after-the-dot This question is asking about formatting; that question is asking about changing the value in a `double`. — Raedwald, Apr 03 '14 at 11:59

Subhrajyoti Majumder · Accepted Answer · 2013-07-06T17:12:18.027

201

Use DecimalFormat.

DecimalFormat is a concrete subclass of NumberFormat that formats decimal numbers. It has a variety of features designed to make it possible to parse and format numbers in any locale, including support for Western, Arabic, and Indic digits. It also supports different kinds of numbers, including integers (123), fixed-point numbers (123.4), scientific notation (1.23E4), percentages (12%), and currency amounts ($123). All of these can be localized.

Code snippet -

double i2=i/60000;
tv.setText(new DecimalFormat("##.##").format(i2));

Output -

5.81

edited Jul 06 '13 at 17:12

answered Jun 09 '12 at 08:06

Subhrajyoti Majumder

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You do not need toString(), format already returns a String. Please also visit http://developer.android.com/reference/java/text/DecimalFormat.html – Damian Leszczyński - Vash Jun 09 '12 at 08:39
2

what if i want in double format? – Srivastav Dec 11 '13 at 14:05
Its double value which can be formated desired string representation by using `DecimalFormat`. Well I did not undeerstand your question 100%. – Subhrajyoti Majumder Dec 13 '13 at 06:13
This is working file. (3.5).ToString("0.00") will show you [3.50]. – garish Oct 15 '15 at 12:35
5

It worked most of as I desired. but in my case, I needed single digit after decimal place. Thus used like - new DecimalFormat("##.#"), But, it didn't work for the cases with 0 after decimal like 35.0 as its showing it **35**. But, I need something like **35.0** – Narendra Singh Jan 23 '16 at 16:26
thanks, working like a charm for me! – eugene.polschikov Feb 16 '18 at 12:11
3

String amt = new DecimalFormat("##.##").format(448.4); -> its gives 448.4 only String amt = new DecimalFormat("##.00").format(448.4); -> Its gives 448.40 – deadend Jun 14 '18 at 13:40
thumbs up for the info that it can be localized – Junaed Feb 27 '20 at 14:13

score 153 · Answer 2 · edited Jul 20 '12 at 15:56

153

How about String.format("%.2f", i2)?

edited Jul 20 '12 at 15:56

bluish

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answered Jun 09 '12 at 08:39

dumazy

13,857
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66
113

2

Much less typing than the decimal format, lmao. Thanks. – Hobbyist Mar 06 '15 at 10:06
7

This might format the string with a comma, depending on the locale, e.g. result = 5,32 instead of 5.32. – Michael Chourdakis Sep 10 '15 at 12:09
4

I used `String.format(Locale.US, "%.2f", i2)` – Manohar Jan 10 '19 at 12:33
Worked for me. Thank you. – Faisal Shaikh Jan 15 '19 at 21:57

Pir Fahim Shah · Answer 3 · 2020-04-26T13:39:08.020

30

Here i will demonstrate you that how to make your decimal number short. Here i am going to make it short upto 4 value after decimal.

  double value = 12.3457652133
  value =Double.parseDouble(new DecimalFormat("##.####").format(value));

edited Apr 26 '20 at 13:39

answered Dec 13 '12 at 05:38

Pir Fahim Shah

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for set text to Textview Eg: double value = 12.3457652133 textview.setText( new DecimalFormat("##.##").format(Double.parseDouble(value))); – Digvijay Machale Jun 12 '17 at 06:49
1

This have a limitation, you should be sure that the local used by `DecimalFormat` is returning decimal value with a dot not comma, otherwise the `parseDouble` will throw `NumberFormatException` – Adil Feb 19 '18 at 13:37
2

Working good without error – Satyam Gondhale Apr 23 '20 at 13:18

Prashant Ghimire · Answer 4 · 2020-08-03T16:48:44.933

17

Many other answers only do formatting. This approach will return value instead of only print format.

double number1 = 10.123456;
double number2 = (int)(Math.round(number1 * 100))/100.0;
System.out.println(number2);

edited Aug 03 '20 at 16:48

answered Jul 10 '13 at 04:44

Prashant Ghimire

4,890
3
35
46

1

This works for me, thank you. – BlueJapan Jul 02 '20 at 03:31
1

worked for me too – Winter MC Jan 26 '21 at 20:54

score 9 · Answer 5 · answered Jun 09 '12 at 09:16

9

I think the best and simplest solution is (KISS):

double i = 348842;
double i2 = i/60000;
float k = (float) Math.round(i2 * 100) / 100;

answered Jun 09 '12 at 09:16

Sergii Stotskyi

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1

I believe he's interested how to *display* only 2 significant digits. Also, because of the way floating point works, your solution will not result exactly in `5.81`, but something like `5.81000000001` or the like. – Petriborg Jun 09 '12 at 14:51
3

I think it's impossible! Because Math.round - returns integer and we cast it to float value. How is float value (581.0) after dividing by 100 can be something like 5.81000000001? Do you have test case that describe your opinion? – Sergii Stotskyi Jun 09 '12 at 15:27
May be this is a simple code for a programmer, It helped me in the critical situation. Thanks buddy...1 upvote for u – nmkyuppie Oct 16 '13 at 09:37
1

This method will be very prone to floating point math errors as @Petriborg pointed out – Ron Jensen Mar 29 '16 at 18:28

score 3 · Answer 6 · answered Jun 09 '12 at 08:15

3

i=348842.
double i2=i/60000;
DecimalFormat dtime = new DecimalFormat("#.##"); 
i2= Double.valueOf(dtime.format(time));
v.setText(String.valueOf(i2));

answered Jun 09 '12 at 08:15

MAC

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score 3 · Answer 7 · edited May 23 '17 at 11:54

3

First thing that should pop in a developer head while formatting a number into char sequence should be care of such details like do it will be possible to reverse the operation.

And other aspect is providing proper result. So you want to truncate the number or round it.

So before you start you should ask your self, am i interested on the value or not.

To achieve your goal you have multiple options but most of them refer to Format and Formatter, but i just suggest to look in this answer.

edited May 23 '17 at 11:54

Community

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answered Jun 09 '12 at 09:09

Damian Leszczyński - Vash

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Reverse the operation? Quiet the opposite: formatting a number as a string should be done for system output only and reversing it should not be needed in a well designed system. – Alexis Dufrenoy Jul 24 '15 at 08:21

Show only two digit after decimal

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