C# Type Casting
#8 Greetings, last time we wrote an article on data types, today I will write a short article on “type casting”.
Type casting is when you assign a value of one data type to another type.
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In C#, there are two types of casting:
- Implicit Casting (automatically) — converting a smaller type to a larger type size
char->int->long->float->double - Explicit Casting (manually) — converting a larger type to a smaller size type
double->float->long->int->char
Implicit Casting
Implicit casting is done automatically when passing a smaller size type to a larger size type:
Explicit Casting
Explicit casting must be done manually by placing the type in parentheses in front of the value:
Type Conversion Methods
It is also possible to convert data types explicitly by using built-in methods, such as Convert.ToBoolean, Convert.ToDouble, Convert.ToString, Convert.ToInt32 (int) and Convert.ToInt64 (long):
Why Conversion?
Many times, there’s no need for type conversion. But sometimes you have to. Take a look at the next chapter, when working with user input, to see an example of this.
That’s it for my article on “type casting” next article will be about “user input. Stay with code.
