Command line argument in Java

import java.util.*;
public class SumAndAverage{
public static void main (String [] arg) {
Scanner scan = new Scanner (System.in);
int [] numbers = new int [10]; 
int sum=0;
System.out.print("Enter 10 numbers");
for (int i=0; i<numbers.length; i++) {
numbers[i]=scan.nextInt ();
sum+=numbers[i];
}
System.out.println("Sum of Numbers: "+sum);
System.out.println("Average of Numbers: "+sum/10);
}
}

command line argument in Java - sample code

public class Swapping{
  static void swap(int i,int j){
  int temp=i;
  i=j;
  j=temp;
  System.out.println("After swapping i = " + i + " j = " + j);
  }
  public static void main(String[] args){
  int i=1;
  int j=2;

  System.out.prinln("Before swapping i="+i+" j="+j);
  swap(i,j);

  }
}

In the above code, the values of i and j are function arguments.