package mypack; import java.util.Scanner; public class Matrix { private int row; private int col; private int[][] matrix; public Matrix(int trow, int tcol) { this.row = trow; this.col = tcol; } public Matrix(int trow, int tcol, int[][] m) { this.row = trow; this.col = tcol; this.matrix = m; } public int[][] fill(){ int[][] data = new int[row][col]; Scanner input = new Scanner(System.in); for(int row = 0; row< matrix.length; row++){ ...