Having two java files one a class the other a driver how do you find the smalles

Question

Having two java files one a class the other a driver how do you find the smallest value of the arrays and also calculate the total in column?

pretty much how do you
calculateTotalCol() FindSmallestValue()
---------------------------
The Class:


// This class contains methods to process elements in two-
// dimensional arrays.

public class TwoDimArraysMethods
{
public static void printMatrix(int[][] matrix)
{
for (int row = 0; row < matrix.length; row++)
{
for (int col = 0; col < matrix[row].length; col++)
System.out.printf("%7d", matrix[row][col]);

System.out.println();
}
} //end printMatrix

public static void sumRows(int[][] matrix)
{
int sum;

//sum of each individual row
for (int row = 0; row < matrix.length; row++)
{
sum = 0;

for (int col = 0; col < matrix[row].length; col++)
sum = sum + matrix[row][col];

System.out.println("The sum of the elements of row "
+ (row + 1) + " = " + sum + ".");
}
} //end sumRows

public static void largestInRows(int[][] matrix)
{
int largest;

//Largest element in each row
for (int row = 0; row < matrix.length; row++)
{
largest = matrix[row][0]; //assume that the first
//element of the row is
//largest
for (int col = 1; col < matrix[row].length; col++)
if (largest < matrix[row][col])
largest = matrix[row][col];

System.out.println("The largest element of row "
+ (row + 1) + " = " + largest + ".");
}
}
}
======================================================================

The Driver:


// This program illustrates how two-dimensional arrays are
// passed as parameters to methods.

public class TwoDimArraysAsParam //Line 1
{ //Line 2
public static void main(String[] args) //Line 3
{ //Line 4
int[][] board ={{23,5,6,15,18},
{4,16,24,67,10},
{12,54,23,76,11},
{1,12,34,22,8},
{81,54,32,67,33},
{12,34,76,78,9}}; //Line 5

TwoDimArraysMethods.printMatrix(board); //Line 6
System.out.println(); //Line 7

TwoDimArraysMethods.sumRows(board); //Line 8
System.out.println(); //Line 9

TwoDimArraysMethods.largestInRows(board); //Line 10

} //end main
}

====================================================

Explanation / Answer

import java.util.Scanner; public class Test { public static void main(String[] args) // Line 3 { // Line 4 int[][] board = { { 23, 5, 6, 15, 18 }, { 4, 16, 24, 67, 10 }, { 12, 54, 23, 76, 11 }, { 1, 12, 34, 22, 8 }, { 81, 54, 32, 67, 33 }, { 12, 34, 76, 78, 9 } }; // Line 5 TwoDimArraysMethods.printMatrix(board); // Line 6 System.out.println(); // Line 7 TwoDimArraysMethods.sumRows(board); // Line 8 System.out.println(); // Line 9 TwoDimArraysMethods.sumCols(board); // Line 8 System.out.println(); // Line 9 TwoDimArraysMethods.smallestInRows(board); // Line 8 System.out.println(); // Line 9 TwoDimArraysMethods.largestInRows(board); // Line 10 } // end main } public class TwoDimArraysMethods { public static void printMatrix(int[][] matrix) { for (int row = 0; row

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