Syntax for converting a double to int in C#
In C#, converting a double to an int can be done using the explicit cast operator or the Convert class. The syntax for both methods is as follows:
1. Using the explicit cast operator:
«`csharp
double number = 3.14;
int convertedNumber = (int)number;
«`
2. Using the Convert class:
«`csharp
double number = 3.14;
int convertedNumber = Convert.ToInt32(number);
«`
Let’s take a closer look at each method.
Using the explicit cast operator
The explicit cast operator allows you to convert a value of one type to another type. In this case, we are converting a double to an int. The syntax for using the explicit cast operator is `(int)number`, where `number` is the double value you want to convert.
Here’s an example:
«`csharp
double number = 3.14;
int convertedNumber = (int)number;
«`
In this example, the double value `3.14` is explicitly cast to an int using the `(int)` syntax. The resulting value is `3`, as the decimal part is truncated.
Using the Convert class
The Convert class in C# provides various methods for converting one type to another. To convert a double to an int using the Convert class, you can use the `Convert.ToInt32()` method. The syntax is `Convert.ToInt32(number)`, where `number` is the double value you want to convert.
Here’s an example:
«`csharp
double number = 3.14;
int convertedNumber = Convert.ToInt32(number);
«`
In this example, the double value `3.14` is converted to an int using the `Convert.ToInt32()` method. The resulting value is `3`, as the decimal part is truncated.
Conclusion
In C#, you can convert a double to an int using either the explicit cast operator or the Convert class. The explicit cast operator is used by enclosing the double value in parentheses and specifying the desired type `(int)number`. The Convert class provides the `Convert.ToInt32()` method to convert a double to an int. Both methods result in the decimal part being truncated.
