C++ If you pass a variable by ________________ to a function, the function will make a local copy of that variable and use that copy throughout the function’s execution. Changes to the parameter are not made to the argument.
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C++
If you pass a variable by ________________ to a function, the function will make a local copy of that variable and use that copy throughout the function’s execution. Changes to the parameter are not made to the argument.
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- 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)C ++ - Create a program that calculates the distance an object travels in meters on Earth for a specific number of seconds. Also calculate the distance traveled on the moon, also in meters, for a specific number of seconds. Do not include any global variables Your program must have the main function and, at least, the following four additional functions. The signatures for these functions must be as follows: double readSeconds() double calculateEarthDistance(double seconds) double calculateMoonDistance(double seconds) void displayResults(double seconds, double earthDistance, double moonDistance) The readSeconds function will be an input function that will read in a double value from cin and return that value back to main. The calculateEarthDistance function will calculate the distance an object falls (on Earth) during the specified number of seconds. The calculateMoonDistance function will calculate the distance an object falls (on the Moon) during the specified number of seconds. The…C++ 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.
- When calling a function with several arguments, parameter order matters.2. What data type would you use to allow a function to receive an Int or nil value as its parameter? func display(num: ____ ) { if num == nil { print("Not a number") } else { print(num) } } display(num: 5) display(num: nil)c++ If you pass a variable by ________________ to a function, the function will have access to the parameter’s original argument. Changes to the parameter are also made to the argument.
- C code Blocks Write a function that accepts three floating point numbers and returns the average of the three numbers. Do not write the function prototype, the main function, any include statements or any "printf" statements - only write the function. The function prototype is given below. Your answer should be the entire function definition , not just the code inside the function definition. Function prototype // float average(float x, float y, float z); Format of function definition // Formaat van funksie definisie returnType functionName(type1 argument1, type2 argument2, ...) { //body of the function } For example: Test Result answer = average(1.0, 2.0, 3.0); printf("%.3f",answer); 2.000 answer = average(-1, 2.5, 3.8); printf("%.3f",answer); 1.767Write a function NewCalculateGrade that takes a double score and uses reference parameter to return the grade and call this new function from main. You can use #include<iostream>using namespace std; char CalculateGrade(double); int main(){double score;cout << "Grade is "<< CalculateGrade(87); } char CalculateGrade(double score){char grade;if (score >90)grade ='A';else if (score >80)grade ='B';else if (score >70)grade ='C';else if (score >60)grade ='D';elsegrade ='F';return grade;}Parameters are the value passed to a function when the function is called and Argument are the variable defined in the function definition. True or false
- You will create a program to print the lyrics of one of the songs below. Your program will define and call functions for the verses and chorus, and call those functions to recreate the song. Old Mac Donald Had a Farm Your program shall, Create at least one function for the chorus of the song. Create a function that prints the entire song. This function calls the other functions created for this program. Use parameters as appropriate. Run and test the program to make sure it works correctlyC++ 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;}C++ Write a function named “createPurchaseOrder” that accepts the quantity(integer), the cost per item (double), and the description (string). It will return anewly created PurchaseOrder object holding that information if they are valid:quantity and cost per item cannot be negative and the description cannot be empty or blank(s). When it is invalid, it will return NULL to indicate that it cannot create such PurchaseOrder object. PurchaseOrder createPurchaseOrder(int quantity, double costPerItem, string description) { if(quantity < 0 || costPerItem < 0.0 || description == "") return NULL; else { PurchaseOrder p = new PurchaseOrder(quantity,costPerItem,description); return p; } } what's the issue with this function and how to rewrite it