Java 101, how do I count the number of arguments passed to main?

Question

for instance

public static void main(String[] args) { int count = 0; for (String s: args) { System.out.println(s); count++; } }

Is there a way to do something like

int count = args.length ()? or args.size ()?

+6

user1464251 Jul 25 '12 at 14:17

6 answers

Is there a way to do something like
int count = args.length ()? or args.size ()?

Yes, args.length .

There is nothing special about args ; it is a regular array of String objects and can be considered as such.

+4

Jon newmuis Jul 25 '12 at 14:19

All arrays have a “field” called length

 int count = args.length;

+1

Peter Lawrey Jul 25 '12 at 14:19

 public static void main(String[] args) { System.out.println(args.length); }

+1

Devin hurd Jul 25 '12 at 14:20

"args" is just an array, so you can use its length property.

Like this:

 System.out.println(args.length);

and you are good to go.

+1

Cristiano fontes Jul 25 '12 at 14:20

Just use int length=args.length

args is just an array, and you can use its length property.

+1

Sumit desai Jul 25 '12 at 14:41

jrad · Accepted Answer · 2012-07-25T14:19:01+0000

It will be:

 int count = args.length;