Girish - 6 months ago 30

C# Question

Here below is the operations..

`double d=4.0;`

double dd=4.0;

double results=d+dd;

it gives at the time of execution

`results => 8`

Instead of

`results => 8.0`

I would like to get output like below

`results => 8.0`

Will anybody tell me how to get decimal value with zero's also

Answer

You should use decimal, not double for your requirement.

```
decimal d= 4.0M;
decimal dd=4.0M;
decimal results=(d+dd); //8.0
```

double is not completely accurate, use decimal instead

For money, always decimal. It's why it was created.

You hsould use `decimal`

if you want more accurate results.
If the exact value of numbers is not important, use `double`

.`double`

has better performance than `decimal`

.

`double`

, is implemented as binary fraction, cannot accurately denotes many `decimal`

fractions.

You can refer this answer for better understanding.

Note: `decimal`

has exponent base 10 and `double`

has 2.

Although you can use `ToString()`

as a heck.

```
double d= 4.0;
double dd=4.0;
double results=(d+dd);
string str = results.ToString("0.0"); //8.0
```

You can also use String.Format