import java.util.Scanner;
public class test {
 public static void main(String[] args){
     Object matrix[][];
     Scanner scanner = new Scanner(System.in);
     System.out.print("Nro. Columnas: ");
     int nroColumns =scanner.nextInt();
     System.out.print("Nro. Filas   : ");
     int nroRows =scanner.nextInt();
     matrix = new Object[nroColumns][nroRows];
 }
}