The command line argument is the argument passed to a program at the time of execution. To access the command-line argument inside a java program is quite easy, they are stored as string in String array passed to the args parameter of main() method.
class Test
{
public static void main(String[] args)
{
for(int i=0;i< args.length;i++)
{
System.out.println(args[i]);
}
}
}
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Let's see another example:
class Test10
{
public static void main(String[] args)
{
String[] argh={"x","y","z"};
args=argh;
for(String s:args)
{
System.out.println(s);
}
}
}
1st Run:
java Test10 A B C
X
Y
2nd Run:
Java Test10 A B
X
Y
Z
3rd Run:
Java Test10 A
X
Y
Z