java program for maintaing array(insert by position,delete by position,update,and display).

import java.io.*;

class ArrayClass
{
    public static void main(String args[]) throws IOException
    {
    int i,j,k,no,top=0,choice,max=0;
    int temp;
    int a[];
    BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Enter Total element that you want in array");
    max=Integer.parseInt(br.readLine());
    a=new int[max];
   

java program to take command prompt input.

import java.io.*;
class OutCommand
{
    public static void main(String args[])
    {
       System.out.println("output is:");
        int l=args.length
        for(int i=1;i<=l;i++)
        {
            for(int j=l-i;j<=i;j++)
            {
            System.out.prinln(" ");
            }
            for(int k=i;k<=i;k++)
            {
            System.out.prinln(args[k]);
            }

        }
    }


}