convert double to int

Question

What is the best way to convert a double to an int  Should a cast be used

User · Answer

Yeah  why not   double someDouble   12323 2  int someInt    int someDouble    Using the Convert class works well too   int someOtherInt   Convert ToInt32 someDouble

User · Answer

label8 Text        years ToString  00       years     when you want to send it to a label  or something  and you don t want any fractional component  this is the best way  label8 Text        years ToString  00 00       years     if you want with only 2  and it s always like that

User · Answer

You can use a cast if you want the default truncate-towards-zero behaviour  Alternatively  you might want to use Math Ceiling  Math Round  Math Floor etc - although you ll still need a cast afterwards   Don t forget that the range of int is much smaller than the range of double  A cast from double to int won t throw an exception if the value is outside the range of int in an unchecked context  whereas a call to Convert ToInt32 double  will  The result of the cast  in an unchecked context  is explicitly undefined if the value is outside the range

User · Answer

Convert ToInt32 is the best way to convert

User · Answer

I think the best way is Convert ToInt32

User · Answer

Here is a complete example  class Example          public static void Main                double x  y       int i        x   10 0       y   3 0           cast double to int  fractional component lost  Line to be replaced       i    int   x   y        Console WriteLine  Integer outcome of x   y      i                If you want to round the number to the closer integer do the following   i    int  Math Round x   y      Line replaced

User · Answer

My ways are     - Convert ToInt32 double value   -  int double value  - Int32 Parse double value ToString

User · Answer

The best way is to simply use Convert ToInt32  It is fast and also rounds correctly    Why make it more complicated

User · Answer

int myInt    int Math Ceiling myDouble

User · Answer

if you use cast  that is   int SomeDouble you will truncate the fractional part  That is  if SomeDouble were 4 9999 the result would be 4  not 5  Converting to int doesn t round the number  If you want rounding use Math Round

[c#] convert double to int

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