Please give a similar example as the previous example in photos (language C++) -Provide a hand-tracing example based off this previous example in the book Big C++ that tests the program like the previous example in the photos. Make sure it’s similar but not the same. -Use a simple pr
Please give a similar example as the previous example in photos (language C++) -Provide a hand-tracing example based off this previous example in the book Big C++ that tests the program like the previous example in the photos. Make sure it’s similar but not the same. -Use a simple pr
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
C++
Please give a similar example as the previous example in photos (language C++)
-Provide a hand-tracing example based off this previous example in the book Big C++ that tests the program like the previous example in the photos. Make sure it’s similar but not the same.
-Use a simple program using 2 variables that require user input with 2 constants that are initialized upon declaration, and either a decision or repetition control structure the program uses to control the flow of logic.
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Transcribed Image Text:For example, let's trace the tax program with the data from the program run in Section 3.4. In
lines 13 and 14, taxl and tax2 are initialized to 0.
6 int main()
7 {
8
9
10
11
12
13
14
15
16
17
18
const double RATE1 = 0.10;
const double RATE2 = 0.25;
const double RATE1 SINGLE LIMIT = 32000;
const double RATE1 MARRIED LIMIT = 64000;
19
20
21
22
23
double tax1 = 0;
double tax2 = 0;
In lines 18 and 22, income and marital status are initialized by input statements.
double income;
cout << "Please enter your income: ";
cin >> income;
marital
tax tax2 income, status
0
0
cout << "Please enter s for single, m for married: ";
string marital_status;
cin >> marital_status;
Because marital status is not "s", we move to the else branch of the outer if statement (line 36).
24
if (marital status == "s")
25
26
27
28
29
if (income <= RATE1 SINGLE LIMIT)
{
}
tax1 = RATE1 * income;
thomasd007/iStockphota
Hand-tracing helps you understand
whether a program works correct-
ly.
marital
tax tax2 income, status
0
0 80000 m
Transcribed Image Text:Because marital status is not "s", we move to the else branch of the outer if statement (line 36).
24 if (marital status == "s")
25
{
26
27
28
29
30
31
32
33
38
39
40
41
42
43
44
45
46
if (income <= RATE1_SINGLE_LIMIT)
{
43
44
}
else
{
34
35
36
37
Because income is not <= 64000, we move to the else branch of the inner if statement (line 42).
if (income <= RATE1_MARRIED_LIMIT)
{
tax1 = RATE1 * income;
}
tax1 = RATE1 * income;
}
else
{
tax1 = RATE1 * RATE1_SINGLE_LIMIT;
tax2= RATE2* (income - RATE1_SINGLE_LIMIT);
}
else
{
}
The values of taxl and tax2 are updated.
{
tax1 = RATE1 * RATE1_MARRIED_LIMIT;
tax2 = RATE2 * (income - RATE1 MARRIED_LIMIT);
}
tax1 = RATE1* RATE1_MARRIED_LIMIT;
tax2 = RATE2* (income - RATE1 MARRIED_LIMIT);
45
46
47 }
Their sum total_tax is computed and printed. Then the program ends.
48
49
50
51
52
53 }
Because the program trace shows the expected output ($10,400), it successfully demon-
double total_tax = tax1 + tax2;
cout << "The tax is $" << total_tax << endl;
return 0;
taxl
Ø
6400
taxl
marital
tax2 income status
80000 m
6400 4000
tax2
Ø
4000
marital total
income status tax
80000 m
10400
Q
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