Type Casting and Type Conversion in C#

Implicit conversion

When passing a lower size type to a larger size type, implicit type casting is performed automatically. The following table shows the types which can be converted to one another form type conversion.

For example

int varINT = 9;

 
// Automatic casting.
double varDOUBLE = varINT;     

 
Console.WriteLine(varINT);    

 
Console.WriteLine(varDOUBLE);  

Output

9
0.9

Explicit conversions

Manual explicit type casting is done by putting the type in parentheses in front of the value. The following table shows the different functions for type conversion.

For example

int VarInt = 10;
double VarDouble = 5.25;
bool VarBool = true;

 
Console.WriteLine(Convert.ToString(VarInt));    
Console.WriteLine(Convert.ToDouble(VarInt));    
Console.WriteLine(Convert.ToInt32(VarDouble));  
Console.WriteLine(Convert.ToString(VarBool));   

Output

“10”
10.00
5
“true”

Frequently asked questions

What is type casting?

Type casting is the method through which a programmer or user converts one data type into another while writing computer code in any programming language. It is manually used by the programmer to convert one data type to another. If we wish to change the target data type to anything else, we utilize it. It's important to keep in mind that the destination data type must be smaller than the source data type. 
 

What is auto widening and explicit narrowing?

The information is automatically cast from a small primitive type to a large primitive type. This is referred to as auto-widening. In other words, the data is automatically converted from byte to short, short to int, int to long, long to float, and float to double. You must cast the data from a large primitive type to a small primitive type directly. i.e., you must convert the data from double to float, float to long, long to int, int to short, and short to byte directly. The explicit narrowing is the term for this.
 

What are auto-up type casting and explicit downcasting? 

A subclass object can be automatically cast to a superclass object. This is referred to as an auto-up casting. It is termed explicit down casting when an object of a superclass type is explicitly cast to a subclass type.
 

What is boxing and unboxing?

Boxing is the process of wrapping primitive material into a wrapper class object. Unboxing is the process of converting a wrapper class object into primitive content.
 

Are there any other Data Structures and Algorithms content in Coding Ninjas Studio?

Yes, Coding Ninjas Studio lets you practice coding while also answering common interview questions. The more we practice, the more probable it is that we will land a job at our ideal firm.

Conclusion

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