Show only two digit after decimal [duplicate]

Question

This question already has an answer here:

• how to convert double to 2 number after the dot? [duplicate] 6 answers

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?

Answer 1

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

Answer 2

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

Answer 3

Here i will demonstrate you that how to make your decimal no shorter, here i am shorter it it to 4 value after decimal.

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

Answer 4

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

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

Answer 5

This will return value instead of just formatting.

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

Answer 6

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

Answer 7

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.