s of your
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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Question
Direction: Answers must be explained properly and thoroughly. You have to insert a screenshot of the results. Include the observations of your code.
Python download: https://www.python.org/downloads/
Any Python Version 3.8 and later is recommended
![Programming Demo 4: Characteristics and Methods of Dictionaries
Write a program below that will demonstrate the different characteristics and methods of
the data type dictionary.
1. Type the following code on your Python script.
1 d1 = {0: 'zero', 1: 'one', 2: 'two', 3: 'three', 4: 'four',7: "seven"}
2
print (d1)
3
4
d1[4] = 'apat'
5
print (dl)
6
d1[5] = 'five'
7
print (d1)
8
del d1[7]
9
print (d1)
2. Run the program and explain the codes in line 4, line 5, line 6 and line 8.
3. Add the four lines of code below consisting the basic methods of a dictionary and
run the program. Provide brief explanation on the purpose of these methods.
10
11
d1.pop(1)
12
print (d1)
13
print (d1.keys())
14 print (d1.values())](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc08371ab-78f3-402e-994b-c7dd5a0a2b76%2Ff7bca8bf-b0b2-4003-9619-67c5000dc37b%2Fm7f4oek_processed.png&w=3840&q=75)
Transcribed Image Text:Programming Demo 4: Characteristics and Methods of Dictionaries
Write a program below that will demonstrate the different characteristics and methods of
the data type dictionary.
1. Type the following code on your Python script.
1 d1 = {0: 'zero', 1: 'one', 2: 'two', 3: 'three', 4: 'four',7: "seven"}
2
print (d1)
3
4
d1[4] = 'apat'
5
print (dl)
6
d1[5] = 'five'
7
print (d1)
8
del d1[7]
9
print (d1)
2. Run the program and explain the codes in line 4, line 5, line 6 and line 8.
3. Add the four lines of code below consisting the basic methods of a dictionary and
run the program. Provide brief explanation on the purpose of these methods.
10
11
d1.pop(1)
12
print (d1)
13
print (d1.keys())
14 print (d1.values())
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