Arrays and collection when we are using in real time project

Hi chandrakala

in real time coding arrays can be used for example to store creadentials in array of type string username,passward,domain etc. 

https://dotnettutorials.net/lesson/arrays-csharp/

in real time use of collection refer this

https://www.c-sharpcorner.com/UploadFile/736bf5/collection-in-C-Sharp/

https://stackoverflow.com/questions/2185071/real-world-use-cases-for-c-sharp-indexers 

Arrays are of fixed length and also homogenous in nature. While collection can be of dynamic length.

 

Also, Array has fast performance rather than collection so based on your requirement you can choose any one of them.

 

For more details, you can refer below links, 

 

https://www.c-sharpcorner.com/interview-question/what-is-difference-between-collection-and-array1

 

https://www.c-sharpcorner.com/UploadFile/18585c/overview-of-array-and-collection/ 

As of my knowledge if the size is known at the compile time and if the type was not specific i.e, if we need the combination of a string,char,float,int,etc..etc...choose an array..else collection.

 

For example:If you want to add some employee details and if the size of employees was fixed(or known) choose arrays.