Solved-Lab 0- Solution

Description

Introduction:

The purpose of this lab is to explore and reinforce the concepts from the lecture section of CS 1428. Today we will cover creating and compiling a file using the Code::Blocks integrated development environment.

Directions:

1-​Launch Code::Blocks on your own computer.

2- ​Create a new empty file by selecting ​File->New->Empty File​.Now select ​File->Save File As…​and name your file “your__last_name_lab0.cpp”.

3-​As the first lines of your new file copy the following:

//Your Name

//CS1428

//Lab 0

The ​“//”​indicates that a line is a comment that will be ignored by the compiler. Comments can be used to mark ownership of files or explain what blocks of code are doing.

4-​The next line of your file should be:

#include <iostream>

This tells Code::Blocks that you want to use commands which are defined in a library. You can include any number of blank lines to improve the readability of your code.

5-​Your next line of code will be:

using namespace std;

This line is important when you’re using standard libraries like iostream.

6- ​Now type:

int main () {

This is the beginning of a function definition. Every C++ program must include a “main” function. Code::Blocks will probably autofill the closing “}” curly bracket. All of the code for a function must be written between these brackets.

7-​For the first line of your main function type the instruction:

cout << “Hello World.” << endl;

This line will cause the text “Hello World” to be printed in the console and then will start a new line. The semicolon at the end of the line tells the compiler that you’ve finished the command and is very important. Every statement in C++ must end with a semicolon.

8-​Use the “​cout​” statement to answer the following questions. Answer each question with a separate “​cout​” and end each statement with an “​endl​” to start a new line. Keep your answers short.

1. Do you have any programming experience?

2. What is the purpose of a compiler?

3. What is an algorithm?

4. What data type would you use to store a number that includes a decimal?

5. What is the name of the compiler we are using with the Code::Blocks IDE?

6. What would you change in this code in order to ensure that it will execute correctly on a Macintosh computer? Windows? Linux?

7. What is an “argument” in programming?

8. What type of value will your main function return?

9. What type of device is a computer monitor?

10. What area of computer science interests you most?

9-​The last statement in your function should be:

return 0;

Make sure that you close the main function with a final curly bracket ​“}”​.

10- ​Save your work. Use the “​Build and Run​” button to compile and execute your program. If there are any errors in your code they will be displayed in the Build Log window of Code::Blocks. Correct any errors that exist in your code. If there are no errors in your code you will see something like this (although these answers may not be correct):

11-​Attach your .cpp file to the TRACS assignment and submit. You can leave whenever you’ve finished the assignment.