Answered: (d). Change the value of the very last…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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(d). Change the value of the very last array element of the 2D array int_arr to 10.
(e). Change the value of the very first array element of the 2D array int_arr to 10
(f). Write a Java for loop to print every array element in the first row.
(g). Write a Java for loop to print every array element in the last column.

i have this so far

int int_arr[][] = new int int_arr[5][7];

# Initialize a 2D array of size 3x4 with zeros
int_arr = [[0 for j in range(4)] for i in range(3)]

# Assign i*j to each element in the array
for i in range(len(int_arr)):
for j in range(len(int_arr[i])):
int_arr[i][j] = i*j

# Change the value of the last array element in row 0 to 5
int_arr[0][-1] = 5

# Print the resulting array
for row in int_arr:
print(row)

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