Using Command Line Arguments
Many times you will need to pass information into a program whenever you run it. This is accomplished through passing command line arguments to main ( ). The command-line argument is the information which directly follows the program's name on the command line whenever it is executed. For access the command-line arguments within Java program is quite simple, they are stored as strings in the string array passed to main ( ). For instance, the following program shows all of the command line arguments in which it is called with:
/ / Display all command-line arguments.
class CommandLine {
public static void main (String args [ ] ) {
for (int i=o; i<args.length; i + +)
System.out.println("args[" + i +" ]:" +
args [I]) ;
}
}
By executing this program, as display here java Command Line this is a test 100 -1
Whenever you do, you will see the given output.
args[0] : this
args[1] : is
args[2] : a
args [3] : test
args[4] : 100
args [5] : -1