How to print a double with two decimals in Android

Question

Maybe this is a silly question  but I cannot guess how to solve it if it s not creating a method  Maybe there s a  natural way  to do it  like in C for example  Here s the problem   I have a var   double a    And I want to show it only with 2 or 3 decimals  When I try to show it   Text setText  Value of a      String valueOf a      It gives something like      Value of a  5 234966145   And i would want just     Value of a  5 23   Without changing the real value of a so it shows the approximate number but works with the real number

User · Accepted Answer

yourTextView setText String format  Value of a    2f   a

User · Answer

use this one   DecimalFormat form   new DecimalFormat  0 00    etToll setText form format tvTotalAmount       Note  Data must be in decimal format  tvTotalAmount

User · Answer

Before you use DecimalFormat you need to use the following import or your code will not work   import java text DecimalFormat    The code for formatting is   DecimalFormat precision   new DecimalFormat  0 00        dblVariable is a number variable and not a String in this case txtTextField setText precision format dblVariable

User · Answer

You can use a DecimalFormat  or String format    2f   a

User · Answer

textView2 setText String format    2f   result      and  DecimalFormat form   new DecimalFormat  0 00             textView2 setText form format result          cause  NumberFormatException  error in locale for Europe because it sets result as comma instead of point decimal - error occurs when textView is added to number in editText  Both solutions are working excellent in locale US and UK

User · Answer

For Displaying digit upto two decimal places there are two possibilities -  1  Firstly  you only want to display decimal digits if it s there  For example - i  12 10 to be displayed as 12 1  ii  12 00 to be displayed as 12  Then use-  DecimalFormat formater   new DecimalFormat             2  Secondly  you want to display decimal digits irrespective of decimal present For example -i  12 10 to be displayed as 12 10  ii  12 to be displayed as 12 00 Then use-  DecimalFormat formater   new DecimalFormat  0 00

[android] How to print a double with two decimals in Android?

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