The Following Program Uses An If-Else Structure

The Following Program Uses An Ifelse Structure The Program Flow I

The following program uses an if...else structure. The program flow is determined by whether or not the "if" condition is true. If the user's selection is greater than 0, one line of code prints, and, if not, a different line executes. Here's the Flowchart: And here is the code: And here is the output: Now, re-create the flowchart in Flowgorithm and run the code in your Dev C++ compiler. Upload your flowgorithm file, .c file, and a screen shot of your code output saved in a Word document including the path name directory at the top of the screen into the dropbox for grading.

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The Following Program Uses An Ifelse Structure The Program Flow I

Recreating and Testing an if-else Program in C++ with Flowgorithm

The purpose of this assignment is to demonstrate understanding of conditional structures in programming, specifically the if-else statement, by recreating a flowchart, implementing the logic in C++, and validating the program through compilation and execution. This exercise helps solidify concepts of decision-making processes within programming and enhances skills in diagramming algorithms, coding, and documentation.

Understanding the Assignment

The initial step involves interpreting the provided description of the program flow, which relies on the if-else structure. The flowchart depicts a decision point: if the user’s input (selection) is greater than zero, the program outputs one message; otherwise, it outputs a different message. The actual flowchart and code are not included in the prompt, but the understanding is clear: it is a simple decision-making process.

In practical terms, the code typically prompts the user for input, checks whether the input value exceeds zero, and then executes one of two blocks of code depending on the result of the condition. The task also involves visually representing this logic with Flowgorithm, a flowchart programming tool, and then translating the logic into C++ code for compilation in Dev C++. Finally, the student must provide supporting documentation, including screenshots and files stored with directory paths.

Implementing the Flowchart in Flowgorithm

Using Flowgorithm, the student should recreate the decision structure as per the description. The flowchart involves:

  • Start symbol
  • Input box to receive the user's selection value
  • Decision symbol comparing the input to zero (selection > 0)
  • Output symbols for both outcomes—one when true, another when false
  • End symbol

This visual representation aids in understanding and debugging the code logic before actual coding in C++.

Coding the Program in C++

The core logic of the C++ program involves declaring a variable to store user input, prompting the user for a numerical selection, and then applying an if-else statement to determine the output. An example code snippet is as follows:

include <iostream>


using namespace std;


int main() {


int selection;


cout << "Enter your selection: ";


cin >> selection;


if (selection > 0) {


cout << "Your selection is greater than zero." << endl;


} else {


cout << "Your selection is zero or less." << endl;


}


return 0;


}

This program reads the user's input, evaluates whether it exceeds zero, and then prints the corresponding message.

Running the Program in Dev C++

After coding, the program should be compiled and run in Dev C++. The output window displays the result based on the input provided. For example, if the user inputs 5, the program outputs: "Your selection is greater than zero." If the user inputs -3, the output should be: "Your selection is zero or less."

Screenshots of successful compilation, execution, and output should be saved. The screen capture must include the full directory path at the top of the Dev C++ window to verify the source and location of the files.

Submission Requirements

Students must upload the following files:

  • The Flowgorithm file (.fprg) that visually represents the flowchart.
  • The C++ source code file (.cpp) implementing the logic.
  • A Word document containing the screenshot of the program output, including the directory path at the top of the screen.

This comprehensive submission demonstrates the connection between flowchart diagrams, programming logic, and the actual coding and execution process.

Conclusion

Recreating simple conditional logic both visually and in code consolidates fundamental programming skills. It enhances understanding of decision structures, debugging, and documentation practices. Such exercises prepare students for more complex algorithms and develop their problem-solving abilities within software development contexts.

References

  • Gaddis, T. (2018). Starting out with C++: From control structures through objects. Pearson.
  • Schwarz, J. (2016). Beginning C++ Programming - From Novice to Professional. Cengage Learning.
  • LaFore, R. (2012). Intro to Programming with C++. Jones & Bartlett Learning.
  • Deitel, P., & Deitel, H. (2014). C++ How to Program. Pearson.
  • Sturm, R. (2007). Programming logic and design. Cengage Learning.
  • Farin, G. (2008). Mathematical methods and algorithms for scientific computing. Springer.
  • Programming with Flowgorithm. (n.d.). Flowgorithm Official Website. https://flowgorithm.org
  • Dev C++ IDE. (n.d.). Dev C++ Official Website. https://orwelldevcpp.blogspot.com
  • Class notes and lecture materials on decision-making structures in programming.
  • Wang, J. (2020). Practical programming with C++. McGraw-Hill Education.

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