Percentage Calculation Program Plan: ADT interface filename: “Percent.h” Include required header files. Define a class “Percent”. Declare function for overload operator “==” and “<”. Declare default constructor for “Percent” class. Declare a constructor for “Percent” class with one integer parameter. Declare function for input overload operator and output overload operator. Declare function for binary overload operators “+”, “-” and “”. Declare a member variable “value”. ADT implementation filename: “Percent.cpp” Include required header files. Define default constructor for “Percent” class. Here assign the value of “value” to “0”. Define constructor for “Percent” class with one integer parameter “percentValue”. In this constructor, assign “value” to “percentValue”. Define a function for overload operator “<”. This function is used to check whether the first percent is less than second percent or not. Define a function for overload operator “==”. This function is used to check whether the two percent’s are equal or not. Define a function for input operator “>>”. Define a function for input operator “<<”. Define a function for binary overload operator “+” to compute the sum of two percentages. In this function, create an object “sum”. Then compute the addition of two percent’s. Finally returns the result of addition. Define a function for binary overload operator “-” to compute the subtraction of two percentages. In this function, create an object “s”. Then compute the subtraction of two percent’s. Finally returns the result of subtraction. Define a function for binary overload operator “” to compute the multiplication of one percent and an integer value. In this function, create an object “m”. Then compute the multiplication of one percent and an integer value. Finally returns the result of multiplication. Application filename: “main.cpp” Include required header files. Define main function. Create two objects “percent1” and “percent2” from “Percent” class. Create an object “percent3” with one integer parameter “10”. Declare an integer variable “intValue”. Read the percentage 1 and percentage 2 from user. Check the two percentages using “==” operator. Check the two percentages using “<” operator. Create an object “sumPercent” from “Percent” class. Then compute and display sum of two percentages. Create an object “subPercent” from “Percent” class. Then compute and display difference of two percentages. Display percentage 3 from assigned value. Read an integer from user to multiply with a percentage 3. Finally compute and display the multiplication of “percent3” and a user entered integer value.

Question

Consider the following relational schema and briefly answer the questions that follow: Emp(eid: integer, ename: string, age: integer, salary: real) Works(eid: integer, did: integer, pct_time: integer) Dept(did: integer, budget: real, managerid: integer) a. Define a table constraint on Dept that will ensure that all managers have age > 30. b. Write SQL statements to delete all information about employees whose salaries exceed that of the manager of one or more departments that they work in. Be sure to ensure that all the relevant integrity constraints are satisfied after your updates.

Answer 1

Question

Chapter 12, Problem 1PP

Program Plan Intro

Percentage Calculation

Program Plan:

ADT interface filename: “Percent.h”

Include required header files.

Define a class “Percent”.

Declare function for overload operator “==” and “<”.

Declare default constructor for “Percent” class.

Declare a constructor for “Percent” class with one integer parameter.

Declare function for input overload operator and output overload operator.

Declare function for binary overload operators “+”, “-” and “”.

Declare a member variable “value”.

ADT implementation filename: “Percent.cpp”

Include required header files.

Define default constructor for “Percent” class.

Here assign the value of “value” to “0”.

Define constructor for “Percent” class with one integer parameter “percentValue”.

In this constructor, assign “value” to “percentValue”.

Define a function for overload operator “<”.

This function is used to check whether the first percent is less than second percent or not.

Define a function for overload operator “==”.

This function is used to check whether the two percent’s are equal or not.

Define a function for input operator “>>”.

Define a function for input operator “<<”.

Define a function for binary overload operator “+” to compute the sum of two percentages.

In this function, create an object “sum”.

Then compute the addition of two percent’s.

Finally returns the result of addition.

Define a function for binary overload operator “-” to compute the subtraction of two percentages.

In this function, create an object “s”.

Then compute the subtraction of two percent’s.

Finally returns the result of subtraction.

Define a function for binary overload operator “” to compute the multiplication of one percent and an integer value.

In this function, create an object “m”.

Then compute the multiplication of one percent and an integer value.

Finally returns the result of multiplication.

Application filename: “main.cpp”

Include required header files.

Define main function.

Create two objects “percent1” and “percent2” from “Percent” class.

Create an object “percent3” with one integer parameter “10”.

Declare an integer variable “intValue”.

Read the percentage 1 and percentage 2 from user.

Check the two percentages using “==” operator.

Check the two percentages using “<” operator.

Create an object “sumPercent” from “Percent” class.

Then compute and display sum of two percentages.

Create an object “subPercent” from “Percent” class.

Then compute and display difference of two percentages.

Display percentage 3 from assigned value.

Read an integer from user to multiply with a percentage 3.

Finally compute and display the multiplication of “percent3” and a user entered integer value.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

Consider the following relational schema and briefly answer the questions that follow: Emp(eid: integer, ename: string, age: integer, salary: real) Works(eid: integer, did: integer, pct_time: integer) Dept(did: integer, budget: real, managerid: integer) a. Define a table constraint on Dept that will ensure that all managers have age > 30. b. Write SQL statements to delete all information about employees whose salaries exceed that of the manager of one or more departments that they work in. Be sure to ensure that all the relevant integrity constraints are satisfied after your updates.

Consider the following relations: Student(snum: integer, sname: string, rmajor: string, level: string, age: integer) Class(cname: string, meets_at: time, room: string, fid: integer) Enrolled(snum: integer, cname: string) Faculty(fid: integer, fname: string, deptid: integer) The meaning of these relations is straightforward; for example, Enrolled has one record per student-class pair such that the student is enrolled in the class. 2. Express each of the following integrity constraints in SQL unless it is implied by the primary and foreign key constraint; if so, explain how it is implied. If the constraint cannot be expressed in SQL, say so. For each constraint, state what operations (inserts, deletes, and updates on specific relations) must be monitored to enforce the constraint. (a) Every faculty member must teach at least two courses. (b) Every student must be enrolled in the course called 'Math101'. (c) A student cannot add more than two courses at a time…

Consider the following relational schema. An employee can work in more than one department; the pct_time field of the Works relation shows the percentage of time that a given employee works in a given department. Emp(eid: integer, ename: string, age: integer, salary: real) Works(eid: integer, did: integer, pct_time: integer) Dept(did: integer, budget: real, managerid: integer) Write the following queries in SQL: a. Print the name of each employee whose salary exceeds the budget of all of the departments that he or she works in. b. Find the enames of managers who manage only departments with budgets larger than $1 million, but at least one department with budget less than $5 million.