package com.tester;

import java.util.Random;
import java.util.Scanner;

public class ArrayMatrixRemoval {
    public static void main(String[] args) {
        int[][] myarr = new int[3][3];
        Random rand = new Random();
        for(int i=0;i<myarr.length;i++)
        {
            for(int j=0;j<myarr[i].length;j++)
            {
                myarr[i][j] = rand.nextInt(50);
                System.out.printf("%3d ",myarr[i][j]);
            }
            System.out.println();
        }
        Scanner scan = new Scanner(System.in);
        System.out.println("Enter the number of row to delete(from 0 to "+(myarr[0].length-1) + " :");
        int k = scan.nextInt();
        //Does not alter the size of the initial array
        //Just shifts all rows starting from k to left
//        for(int i=0;i<myarr.length;i++)
//        {
//            for(int j=k;j<myarr[i].length-1;j++)
//            {
//                myarr[i][j] = myarr[i][j+1];
//            }
//        }
        //On contrary alters the dimenosions of matrix by creating new one
        myarr = remove(k,myarr);
        for(int i=0;i<myarr.length;i++)
        {
            //If first method was used myarr[i].length should be changed to myarr[i].length-1
            //Because last row is deleted one
            for(int j=0;j<myarr[i].length;j++)
            {
                System.out.printf("%3d ",myarr[i][j]);
            }
            System.out.println();
        }
    }//End of main
    public static int[][] remove(int k,int[][] myarr)
    {
        int[][] res = new int[myarr.length][myarr[0].length - 1];
        for(int i=0;i<myarr.length;i++)
        {
            for(int j=0;j<myarr[i].length;j++)
            {

                if(j < k)res[i][j] = myarr[i][j];
                else if(j > k)res[i][j-1] = myarr[i][j];
            }
        }
        return res;
    }
}