Correct answers in red, black is my attempted answer 1. How many array variables? Has not b created 30 spaces variables? Or does it mean it has a and b two variables. I don't really get difference between array variables and array objects. 2. How many array objects? Does it not start with i=1 to i <=5, in total of 5?

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
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Correct answers in red, black is my attempted answer

1. How many array variables? Has not b created 30 spaces variables? Or does it mean it has a and b two variables. I don't really get difference between array variables and array objects.

2. How many array objects? Does it not start with i=1 to i <=5, in total of 5?

WINTER 2019 FINAL EXAM SHORT ANSWER Q14
I. The declaration int[ ] x;
- Creates a place for a reference to an array object, craatus meunory fov avray
[2] 14) Given the following code:
· But it doesn't create an array object to refer to.
2. The expression new int[7]
· Creates an array object, and gives a reference to it
int[] a;
int[] b = new int[30];
for (int i=1; i<=5; i++){
b = new int[i];
}
· But doesn't store that reference anywhere.
· Usually, you want to do both at the same time:
int[ ] x = new int[7]:
length
2
3
4
5
6
7
my
adas Nat stove auway
Covect
answa (wvong)
answer
How many array variables are created?
2
30
How many array objects are created?
6 5
Transcribed Image Text:WINTER 2019 FINAL EXAM SHORT ANSWER Q14 I. The declaration int[ ] x; - Creates a place for a reference to an array object, craatus meunory fov avray [2] 14) Given the following code: · But it doesn't create an array object to refer to. 2. The expression new int[7] · Creates an array object, and gives a reference to it int[] a; int[] b = new int[30]; for (int i=1; i<=5; i++){ b = new int[i]; } · But doesn't store that reference anywhere. · Usually, you want to do both at the same time: int[ ] x = new int[7]: length 2 3 4 5 6 7 my adas Nat stove auway Covect answa (wvong) answer How many array variables are created? 2 30 How many array objects are created? 6 5
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