String[] args why it is needed in main class

Question

String[] args why it is needed for main class in java please explain me with real time example

Amit Gupta · Answer

I hope you are aware that main method is the entry point of the application and regarding string[] args, its a command line argument that is needed when you want to execute any command string while starting your application. Have you noticed when opening an txt file with notepad or opening media files with media player, that all of because command line argument.

Mukil Vendhan · Answer

Hi freind, String[] args is a array of strings, With-in your main you could check what the args contains and act upon the type of argument passed onto the program. If you plan on making a console based utility this would be a very good way to utilize the String[] args.

Nigel Fernandes · Answer

if I remember correclty that is to take command line arguments when the applciation is run

Arularasan K · Answer

This is very simple: User wants to give dynamic inputs to programs. and checking their output. Otherwise it will be hard coded and every time program should compile and run. to avoid this SUN people given this advantage for Command line arguments.

Gokhul Varman · Answer

Please refer the link for more explanation:http://javarevisited.blogspot.in/2013/04/what-is-string-args-in-java-main-method.html

String[] args why it is needed in main class

Answers (5)