class Array { public static int getTotal(int[][]numbers ) { int tot=0; // Lo0op repeats until list ends for (int row = 0;row < numbers .legth; row++) for (int col=0 ;col< numbers [row].length; col++) tot+=numbers [row][col]; return tot; } // return avarage public static double getAvarage(int [][]numbers,int index) { double avg; avg=(double) (getTotal(numbers/(12)); return avg; } public static int getRowTotal (int [][] numbers, int index) { int tot=0; // loop repeats until list ends for (int col=0;col<4;col++) // Accumulates sum of numbers tot+= number[index][col]; return tot; } public static int getHighest(int [][] numbers, int row) { int high= numbers [row][0]; // Loop repeats until list ends for (int i = 1; i<4; i++) if (numbers[rows][i]>high ) high = numbers [row] [i]; return high; } public static int getLowest (int [][]number,int row) { int low = number [row][0]; // Loop repeats until list ends for(inti = 1 ;i < 4 ;i++) if (numbers [row][i] Solution class ArrayDemo { // main function public static void main(String[] arg) { int[][] list = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } }; // Function call and display data returned System.out.println(\"total:\" + getTotal(list)); System.out.println(\"Average:\" + getAverage(list)); System.out.println(\"Row 2 value:\" + getRowTotal(list, 2)); System.out.println(\"column3 value:\" + getColumnTotal(list, 3)); System.out.println(\"highest value in row 1 is:\" + getHighest(list, 1)); System.out.println(\"lowest value in row 2 is:\" + getLowest(list, 2)); // exit program System.exit(0); } public static int getTotal(int[][] numbers) { int tot = 0; // Lo0op repeats until list ends for (int row = 0; row < numbers.length; row++) for (int col = 0; col < numbers[row].length; col++) tot += numbers[row][col]; return tot; } // return average public static double getAverage(int [][]numbers) { double avg; avg=(double) getTotal(numbers)/12; return avg; } public static int getRowTotal(int[][] numbers, int index) { int tot = 0; // loop repeats until list ends for (int col = 0; col < 4; col++) // Accumulates sum of numbers tot += numbers[index][col]; return tot; } public static int getHighest(int[][] numbers, int row) { int high = numbers[row][0]; // Loop repeats until list ends for (int i = 1; i < 4; i++) if (numbers[row][i] > high) high = numbers[row][i]; return high; } public static int getLowest(int[][] numbers, int row) { int low = numbers[row][0]; // Loop repeats until list ends for (int i = 1; i < 4; i++) if (numbers[row][i] < low) low = numbers[row][i]; return low; } public static int getColumnTotal(int[][] numbers, int column) { int sum = 0; for(int i = 0; i < numbers.length; i++) sum += numbers[i][column]; return sum; } }.

1. class Array
{
public static int getTotal(int[][]numbers )
{
int tot=0;
// Lo0op repeats until list ends
for (int row = 0;row < numbers .legth; row++)
for (int col=0 ;col< numbers [row].length; col++)
tot+=numbers [row][col];
return tot;
}
// return avarage
public static double getAvarage(int [][]numbers,int index)
{
double avg;
avg=(double) (getTotal(numbers/(12));
return avg;
}
public static int getRowTotal (int [][] numbers, int index)
{
int tot=0;
// loop repeats until list ends
for (int col=0;col<4;col++)
// Accumulates sum of numbers
tot+= number[index][col];
return tot;
}
public static int getHighest(int [][] numbers, int row)
{
int high= numbers [row][0];
// Loop repeats until list ends
for (int i = 1; i<4; i++)
if (numbers[rows][i]>high )
high = numbers [row] [i];
return high;

2. }
public static int getLowest (int [][]number,int row)
{
int low = number [row][0];
// Loop repeats until list ends
for(inti = 1 ;i < 4 ;i++)
if (numbers [row][i]
Solution
class ArrayDemo {
// main function
public static void main(String[] arg) {
int[][] list = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
// Function call and display data returned
System.out.println("total:" + getTotal(list));
System.out.println("Average:" + getAverage(list));
System.out.println("Row 2 value:" + getRowTotal(list, 2));
System.out.println("column3 value:" + getColumnTotal(list, 3));
System.out.println("highest value in row 1 is:" + getHighest(list, 1));
System.out.println("lowest value in row 2 is:" + getLowest(list, 2));
// exit program
System.exit(0);
}
public static int getTotal(int[][] numbers) {
int tot = 0;
// Lo0op repeats until list ends
for (int row = 0; row < numbers.length; row++)
for (int col = 0; col < numbers[row].length; col++)
tot += numbers[row][col];
return tot;
}
// return average
public static double getAverage(int [][]numbers)
{
double avg;
avg=(double) getTotal(numbers)/12;

3. return avg;
}
public static int getRowTotal(int[][] numbers, int index) {
int tot = 0;
// loop repeats until list ends
for (int col = 0; col < 4; col++)
// Accumulates sum of numbers
tot += numbers[index][col];
return tot;
}
public static int getHighest(int[][] numbers, int row) {
int high = numbers[row][0];
// Loop repeats until list ends
for (int i = 1; i < 4; i++)
if (numbers[row][i] > high)
high = numbers[row][i];
return high;
}
public static int getLowest(int[][] numbers, int row) {
int low = numbers[row][0];
// Loop repeats until list ends
for (int i = 1; i < 4; i++)
if (numbers[row][i] < low)
low = numbers[row][i];
return low;
}
public static int getColumnTotal(int[][] numbers, int column) {
int sum = 0;
for(int i = 0; i < numbers.length; i++)
sum += numbers[i][column];
return sum;
}
}