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Determine the value of each of the following expressions. (1)
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Chapter 6 Solutions
C++ Programming: From Problem Analysis to Program Design
- Mark the following statements as true or false: a. To use a predefined function in a program, you need to know only the name of the function and how to use it. (1) b. A value-returning function returns only one value. (2, 3) c. Parameters allow you to use different values each time the function is called. (2, 7, 9) d. When a return statement executes in a user-defined function, the function immediately exits. (3, 4) e. A value-returning function returns only integer values. (4) f. A variable name cannot be passed to a value parameter. (3, 6) g. If a C++ function does not use parameters, parentheses around the empty parameter list are still required. (2, 3, 6) h. In C + + , the names of the corresponding formal and actual parameters must be the same. (3, 4, 6) i. A function that changes the value of a reference parameter also changes the value of the actual parameter. (7) j. Whenever the value of a reference parameter changes, the value of the actual parameter changes. (7) k. In C++, function definitions can be nested; that is, the definition of one function can be enclosed in the body of another function. (9) l. Using global variables in a program is a better programming style than using local variables, because extra variables can be avoided. (10) m. In a program, global constants are as dangerous as global variables. (10) n. The memory for a static variable remains allocated between function calls. (11)arrow_forwardshort answer Encapsulation is the way to add functions in a user defined structure. a) True b) False Computer sciencearrow_forwardC++ beginnerarrow_forward
- # Python 3 def printFunction(num1, num2): num3 = num1 + num2 return num3print(num3) Explanation: Here, num3 is the local variable that is defined in the scope of the function and when it is used outside the function, an error occurs. Print(num3) is the statement which is outside the scope of the function. So, when this statement is executed, there is no variable named num3 to be printed, so it gives an error. The error that occurs is : NameError: name 'num3' is not defined Construct a function that takes an argument. Give the function parameter a unique name. Show what happens when you try to use that parameter name outside the function. Explain the results. Show what happens when a variable defined outside a function has the same name as a local variable inside a function. Explain what happens to the value of each variable as the program runs.arrow_forwardc++, print the outputarrow_forwardNeed Code in C++ Write a program that uses a structure named MovieData to store the following information about a movie: Title Director Year Released Running Time (in minutes) The program should create two MovieData variables, store values in their members, and pass each one, in turn, to a function that displays the information about the movie in a clearly formatted manner.arrow_forward
- C++ Functions provide a means to modularize applications Write a function called "Calculate" takes two double arguments returns a double result For example, the following is a function that takes a single "double" argument and returns a "double" result double squareArea(double side){ double lArea; lArea = side * side; return lArea;}arrow_forwardC++ printSmaller is a function that accepts two int parameters and returns no value. It will print the value of the smaller one parameters. The function protoype is as follows: void printSmaller(int num1, int num2); write the statments to read two integers and call this function to display the smaller one.arrow_forwardC++ Programming Exercise: When you borrow money to buy a house, a car, or for some other purpose, you repay the loan by making periodic payments over a certain period of time. Of course, the lending company will charge interest on the loan. Every periodic payment consists of the interest on the loan and the payment toward the principal amount. To be specific, suppose that you borrow $1,000 at an interest rate of 7.2% per year and the payments are monthly. Suppose that your monthly payment is $25. Now, the interest is 7.2% per year and the payments are monthly, so the interest rate per month is 7.2/12 = 0.6%. The first month's interest on $1,000 is 1000 X 0.006 = 6. Becuase the payment is $25 and the interest of the first month is $6, the payment toward the principal amount is 25-6 = 19. This means after making the first payment, the loan amount is 1,000-19 = 981. For the second payment, the interest is calculated on $981. So the interest for the second month is 981 X 0.006 = 5.886,…arrow_forward
- Fill-in-the-Blank When a function uses a mixture of parameters with and without default arguments, the parameters with default arguments must be defined _________.arrow_forwardC++ 1 year = 15 months 1 month = 30 days write a function that takes an int parameter that represents the number of days, and converts the number of days to years, months, and days and returns this information in a struct Go to Se So for example, it will convert 800 days into a struct that Activa represents one year, 11 months, and 20 daysarrow_forwardc++arrow_forward
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning