printf f with only 2 numbers after the decimal point

Question

In my printf  I need to use  f but I m not sure how to truncate to 2 decimal places   Example  getting  3 14159  to print as   3 14

User · Answer

Use this  printf     2f   3 14159

User · Answer

System out printf    2f   number     BUT  this will round the number to the nearest decimal point you have mentioned  As in your case you will get 3 14 since rounding 3 14159 to 2 decimal points will be 3 14   Since the function printf will round the numbers the answers for some other numbers may look like this   System out printf    2f   3 14136   - gt  3 14 System out printf    2f   3 14536   - gt  3 15 System out printf    2f   3 14836   - gt  3 15   If you just need to cutoff the decimal numbers and limit it to a k decimal numbers without rounding   lets say k   2   System out printf    2f   3 14136 - 0 005   - gt  3 14 System out printf    2f   3 14536 - 0 005   - gt  3 14 System out printf    2f   3 14836 - 0 005   - gt  3 14

User · Answer

You can use something like this   printf    2f   number     If you need to use the string for something other than printing out  use the NumberFormat class   NumberFormat formatter   new DecimalFormatter          String s   formatter format 3 14159265      Creates a string containing  3 14

User · Answer

I suggest to learn it with printf because for many cases this will be sufficient for your needs and you won t need to create other objects    double d   3 14159       printf     2f   d     But if you need rounding please refer to this post  https   stackoverflow com a 153785 2815227

User · Answer

Use this   printf     2f   3 14159

User · Answer

You can try printf    2f    double

User · Answer

Try   printf    2f   3 14159    Reference   http   www cplusplus com reference clibrary cstdio printf

User · Answer

as described in Formatter class  you need to declare precision    2f in your case

[java] printf %f with only 2 numbers after the decimal point?

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