what is string[] args means

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public static void main(String[] args)

following are my questions about above code -

1) in above code what is meaning of "String".

2) in above code what is meaning of "[]".

3) in above code what is meaning of "args".

4) what if i do not include "String[] args".

Posted 27-Jul-15 5:00am

nihal saxena

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[no name] 27-Jul-15 11:10am

1. It means that that the datatype of args is a String.
2. That means that args is an array of Strings
3. args is a variable name
4. What if?
5. Get yourself a decent basic book on programming and work through it. You could have found the answers yourself if you had just put in a little bit of effort.

Sergey Alexandrovich Kryukov 27-Jul-15 11:12am

The set of four questions is absurd. Learn what it is in general, that's it. Short answer would be: learn programming.
—SA

CPallini 27-Jul-15 11:27am

What is Java?
Q&A cannot replace a book.

nihal saxena 27-Jul-15 11:51am

sorry sir for a silly question

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Sergey Alexandrovich Kryukov · Accepted Answer · 2015-07-27T05:11:00

Solution 1

Please see: https://en.wikipedia.org/wiki/Entry_point#Java[^].

Any questions?

—SA

Posted 27-Jul-15 5:11am

Sergey Alexandrovich Kryukov

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nihal saxena 28-Jul-15 8:17am

thanks

Sergey Alexandrovich Kryukov 28-Jul-15 8:41am

You are welcome. Will you accept this answer formally, too? It tells you all you need.
—SA

OriginalGriff · Accepted Answer · 2015-07-27T05:15:00

1) String : A "list" of characters. "This is a string". "So is this"
2) [] : Array. An array is a specific type of collection, like a chess board where each "square" can hold one piece at a time.

So "String[]" is an array of strings.

3) args : name of the variable that receives the array of strings.

In this case, it gets any parameters that were passed to the application when it was executed - input and output file names for example.

4) You won't be able to use any parameters that were supposed to be used to control how your program works.

This is relatively simple stuff - but it'll make sense later in your course. Ignore it for now, and your tutor will explain what an array is better than I could!

Richard MacCutchan · Accepted Answer · 2015-07-27T07:34:00

Solution 3

Go to http://download.oracle.com/javase/tutorial/index.html[^] and study.

Posted 27-Jul-15 7:34am

Richard MacCutchan

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nihal saxena 28-Jul-15 8:17am

thanks

what is string[] args means

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