Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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![Consider the following code segment that includes a method called
multiply. The multiply method is a sample method for the multiplication
of an n by m array and an m by p array. Suppose the multiply method is
invoked as shown, what will be the value of the expression
a5[1][1]?
Note that the initializeArray method puts a 0 to every cell of the array
passed to initializeArray. *](https://content.bartleby.com/qna-images/question/fc4eba69-32ba-41f1-b37c-e11be6514d08/5ba5aba5-7f82-4f39-a9a0-d732afc1f6dd/rf6hkrc_processed.png)
Transcribed Image Text:Consider the following code segment that includes a method called
multiply. The multiply method is a sample method for the multiplication
of an n by m array and an m by p array. Suppose the multiply method is
invoked as shown, what will be the value of the expression
a5[1][1]?
Note that the initializeArray method puts a 0 to every cell of the array
passed to initializeArray. *
![int[][] quantities = {{1,2,1},
{2,1,1},
{3,1,2}};
int[][] costs = {{18,5,3},
{20,10,6},
{30,15,9}};
int[][] a5 = new int[quantities. length][costs[0].1ength];
a5 = multiply(quantities,costs);
// more statements here
public static int[][] multiply(int[][] a1, int[][] a2) {
int[][] product = neu int[al.length][a2[0].1ength];
int element = 0;
int r, c;
initializeArray(product);
for (r = 0; r < product.length; r++) {
for (c = 0; c < product[r].1ength; c++) {
for (int x = 0; x < al[r].iength; x++) {
product[r][c] += al[r][x] * a2[x][c];
return product;](https://content.bartleby.com/qna-images/question/fc4eba69-32ba-41f1-b37c-e11be6514d08/5ba5aba5-7f82-4f39-a9a0-d732afc1f6dd/rv0igyr_processed.png)
Transcribed Image Text:int[][] quantities = {{1,2,1},
{2,1,1},
{3,1,2}};
int[][] costs = {{18,5,3},
{20,10,6},
{30,15,9}};
int[][] a5 = new int[quantities. length][costs[0].1ength];
a5 = multiply(quantities,costs);
// more statements here
public static int[][] multiply(int[][] a1, int[][] a2) {
int[][] product = neu int[al.length][a2[0].1ength];
int element = 0;
int r, c;
initializeArray(product);
for (r = 0; r < product.length; r++) {
for (c = 0; c < product[r].1ength; c++) {
for (int x = 0; x < al[r].iength; x++) {
product[r][c] += al[r][x] * a2[x][c];
return product;
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