Activecode Exercises

Answer the following Activecode questions to assess what you have learned in this chapter.

Construct a block of code that prints: “Lions &” one the first line, “Tigers & Bears!” on the second line, and “Oh my!” on the FOURTH line.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to print one separate lines.

#include <iostream> using namespace std; int main() { cout << "Lions &" << endl; cout << "Tigers &"; cout << " Bears!" << endl; cout << endl; cout << "Oh my!"; }

Construct a block of code that swaps the value of integers x and y, which have values 3 and 6, respectively.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to declare and swap these variables.

#include <iostream> using namespace std; int main() { int x; int y; x = 3; y = 6; int temp = x; x = y; y = temp; }

Dan Humphrey is a 3.98 student at Constance High School. His crush’s first initial is S. Construct a program that assigns the variables name, GPA, and crush, in that order. Output the variables to the terminal to check your code.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to assign the variables.

#include <iostream> using namespace std; int main() { string name = "Dan Humphrey"; double GPA; GPA = 3.98; char crush = 'S'; }

You decide to make homemade Mac ‘n’ Cheese for you and your roomates. Whoever wrote the recipe wanted to make things hard for you by stating that it calls for 1% of a gallon of milk. Construct a block of code that converts this to tablespoons. Use the variable name ‘tbsp’ for the final tablespoons conversion.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to convert units to tablespoons.

#include <iostream> using namespace std; int main() { double gallons = 0.01; double cups = 16 * gallons; double tbsp; tbsp = 16 * cups; }

Construct a block of code that takes the ‘volume’ of the rectangular prism defined by length, width, and height and prints the result to the terminal. The volume of a rectangular prism is given by Volume = length * width * height. Use a length of 2, width of 3, and height of 4.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to define variables, find volume and print results to the terminal.

#include <iostream> using namespace std; int main() { int length = 2; int width = 3; int height = 4; int volume; volume = height * width * length; cout << volume; }

Construct a block of code that changes the value of the variable a from the character ‘a’ to the character ‘z’. Remember that number values can be used with characters and operations.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to change the value of the character variable.

#include <iostream> using namespace std; int main() { char a = 'a'; a = a + 25; }

Construct a block of code that outputs the volume of a cylinder with a radius of 3 and a height of 4. The formula for volume of a cylinder is V = (pi)(r^2)(h). Use 3.14 for pi.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to output the volume of the cylinder.

#include <iostream> using namespace std; int main() { double radius = 3.00; double height = 4.00; double pi = 3.14; double volume = pi * radius * radius * height; cout << volume << endl; }

Construct a block of code that assigns the string “MATH” to a variable and prints “My favorite class is MATH” on the same line.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to output the string.

#include <iostream> using namespace std; int main() { string favClass = "MATH"; cout << "My favorite class is "; cout << favClass; }

It’s Black Friday and the Nintendo Switch you’be been saving up for is marked down to 60% of its original price! Construct a block of code that calculates and outputs the variable moneySaved, which is how much money you’d be saving if the system originally costed $359.99?

#include <iostream> using namespace std; int main() { // YOUR CODE HERE cout << moneySaved << endl; cout << "moneySaved should be $143.99." << endl; }

Below is one way to write the code to calculate your savings.

#include <iostream> using namespace std; int main() { double game = 359.99; double discount = game * 0.60; double moneySaved = game - discount; }

Your family just bought a dog and everyone has been fighting over what to name it. It went from Champ to Copper to Higgins, and after a few days of being Higgins, everyone agreed on Buddy. Construct a block of code that illustrates this concept.

#include <iostream> using namespace std; // YOUR CODE HERE

Below is one way to write the code to illustrate the dog’s name change process.

#include <iostream> using namespace std; int main() { string name = "Champ"; name = "Copper"; string newName = "Higgins"; name = newName; name = "Buddy"; }

You have attempted of activities on this page