Assuming there are no deposits other than the original investment, the balance in a saving account after one year may be calculated as Rate Amount = Principal x (1+ T. %3D Principal is the balance in the savings account, Rate is the interest rate, and Tis the number of times the interest is compounded during a year (e.g. T is 4 if the interest is compounded quarterly). Write a program named saving.cpp that asks for the principal, the interest rate, and the number of times the interest is compounded. Compute the interest earned and the total amount in the saving account, and print the report shown in the task 2 sample output. Task 2 Sample Output: Please enter the principal amount: 1000.00 Please enter the interest rate: 4.25 Please enter the number of times compounded: 12 Interest Rate: Times Compounded: Principal: 4.254 12 1000.00 $ 43.34 1043.34 Interest: Amount in Savings: All the $ must be aligned Note: • Hint: Use library for pow () finction for equation auluulı

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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The text output of a program should be well-formatted for readability as well as displaying
numbers with the proper notation and precision levels. The default output formatting in C++ is
often not desirable, so one can add explicit instructions to the cout stream. These manipulators
and functions are defined in the <iomanip> library.
O setw (n): set the width (number of characters) of the next item to be at least n.
• If the next item width is less than n, then pad the item with extra spaces.
• If the next item width is greater than n, then the entire next item is output.
• left and right: when used in conjunction with setw (), justify the item to one side
forcing the padding to the other side. Note that these manipulators are persistent, i.e. remains
effective until the next change occurs.
• fixed: use the fixed-point notation (the decimal point notation that we are familiar with)
when displaying a numerical item. Note that fixed defaults to 6 decimal points if the data
type is float or double. See the example below:
int i = 123;
float f = 12.3;
float ff = 0.0001234;
double d = 10;
ble dd = 20.123456789o;
cout << £ixed;
cout << i < endl;
sout << E << endl;
Note the
roundine
// output: 123
// output: 12.300000
// output: 0.000123
// output: 10.000000
// output: 20.123457
cout << EE
cut << d << endl:
endl;
Note the
rounding
cout << dd << endl;
• setprecision (n) : when used in conjunction wvith fixed, set the number of digits after
the decimal point to n. Without fixed, the setprecision (n) will output n sigmificant
digits instead.
• showpoint: when printing a floating-point mumber, display the decimal point even if the
value is exactly equal to a whole number.
For setw (), setprecision (), showpoint, see example below:
float cost = 10.0;
cout << ":" < cost < ":" << endl;
cout << fixed << setprecision (2) < showpoint;
cout << right << ":" << setw (8) << cost << ":" << endl;
cout << ":" << setw(8) << "1234567" << ":" << endl;
The output would be as follows:
:10:
10.00:
: 1234567:
Transcribed Image Text:The text output of a program should be well-formatted for readability as well as displaying numbers with the proper notation and precision levels. The default output formatting in C++ is often not desirable, so one can add explicit instructions to the cout stream. These manipulators and functions are defined in the <iomanip> library. O setw (n): set the width (number of characters) of the next item to be at least n. • If the next item width is less than n, then pad the item with extra spaces. • If the next item width is greater than n, then the entire next item is output. • left and right: when used in conjunction with setw (), justify the item to one side forcing the padding to the other side. Note that these manipulators are persistent, i.e. remains effective until the next change occurs. • fixed: use the fixed-point notation (the decimal point notation that we are familiar with) when displaying a numerical item. Note that fixed defaults to 6 decimal points if the data type is float or double. See the example below: int i = 123; float f = 12.3; float ff = 0.0001234; double d = 10; ble dd = 20.123456789o; cout << £ixed; cout << i < endl; sout << E << endl; Note the roundine // output: 123 // output: 12.300000 // output: 0.000123 // output: 10.000000 // output: 20.123457 cout << EE cut << d << endl: endl; Note the rounding cout << dd << endl; • setprecision (n) : when used in conjunction wvith fixed, set the number of digits after the decimal point to n. Without fixed, the setprecision (n) will output n sigmificant digits instead. • showpoint: when printing a floating-point mumber, display the decimal point even if the value is exactly equal to a whole number. For setw (), setprecision (), showpoint, see example below: float cost = 10.0; cout << ":" < cost < ":" << endl; cout << fixed << setprecision (2) < showpoint; cout << right << ":" << setw (8) << cost << ":" << endl; cout << ":" << setw(8) << "1234567" << ":" << endl; The output would be as follows: :10: 10.00: : 1234567:
Assuming there are no deposits other than the original investment, the balance in a saving
account after one year may be calculated as
Rate
Amount = Principal x (1+
%3D
T.
Principal is the balance in the savings account, Rate is the nterest rate, and Tis the number of
times the interest is compounded during a year (e.g Tis 4 if the interest is compounded
quarterly). Write a program named saving.cpp that asks for the principal, the mterest rate,
and the number of times the interest is compounded. Compute the interest earned and the total
amount in the saving account, and print the report shown in the task 2 sample output.
Task 2 Sample Output:
Please enter the principal amount: 1000.00
Please enter the interest rate: 4.25
Please enter the number of times compounded: 12
Interest Rate:
Times Compounded:
Principal:
Interest:
Amount in Savings:
4.254
12
1000.00
43.34
1043.34
All the S must be aligned
Note:
• Hint: Use <emath> library for pow () function for equation calculation.
• Use meaningful variable names, e.g. principal, interestRate, times, etc.
Transcribed Image Text:Assuming there are no deposits other than the original investment, the balance in a saving account after one year may be calculated as Rate Amount = Principal x (1+ %3D T. Principal is the balance in the savings account, Rate is the nterest rate, and Tis the number of times the interest is compounded during a year (e.g Tis 4 if the interest is compounded quarterly). Write a program named saving.cpp that asks for the principal, the mterest rate, and the number of times the interest is compounded. Compute the interest earned and the total amount in the saving account, and print the report shown in the task 2 sample output. Task 2 Sample Output: Please enter the principal amount: 1000.00 Please enter the interest rate: 4.25 Please enter the number of times compounded: 12 Interest Rate: Times Compounded: Principal: Interest: Amount in Savings: 4.254 12 1000.00 43.34 1043.34 All the S must be aligned Note: • Hint: Use <emath> library for pow () function for equation calculation. • Use meaningful variable names, e.g. principal, interestRate, times, etc.
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