Investment Calculator

Introduction: The investment calculator project aims to provide users with a tool to calculate the growth of their investments over a specified period. By inputting their initial investment amount, annual interest rate, and other relevant details, users can gain insights into the potential value of their investments over time.

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Importing Necessary Tools: To kick off the project, I imported the Scanner class from the java.util package. This tool allowed me to interact with users, enabling them to input data necessary for the investment calculator.

• Setting Up the Main Class and Method: With the groundwork laid, I defined the Main class, which serves as the foundation for the program. Within this class, I established the main method, which acts as the starting point for executing the program's instructions.

• Initializing User Input: Recognizing the importance of user input in an interactive program like this, I created an instance of the Scanner class named in. This instance would serve as the gateway for users to input their data.

• Defining Variables and Constants: Anticipating the need for various values throughout the program, I declared several variables and constants. These included placeholders for the initial investment amount, annual interest rate, end-of-year investment value, and constants for factors such as the annual deposit amount, investment period, and acceptable interest rate range.

• Prompting User Input: With the groundwork laid, I prompted users to input their initial investment amount. However, I implemented a validation mechanism to ensure that the input met the minimum investment threshold required for the calculation to proceed. If the input fell short, I prompted the user to re-enter a valid amount.

• Gathering Annual Interest Rate: Similarly, I prompted users to input the annual interest rate for their investment. Again, I incorporated validation logic to ensure that the entered rate fell within the acceptable range. If not, I prompted the user to provide a valid interest rate.

• Formatting Interest Rate: To enhance user readability, I converted the annual interest rate from its decimal form to a percentage format. This formatting step ensured that users could easily interpret the displayed rate.

• Displaying Investment Plan Details: With the necessary inputs collected, I displayed an overview of the investment plan to users. This summary included key details such as the initial investment amount, annual return rate, and the amount of annual deposits.

• Setting Up the Loop Structure: Moving into the heart of the program, I prepared a loop structure to calculate the investment value at the end of each year. I initialized a for loop to iterate through each year of the investment period, ensuring that calculations were performed accurately for each year.

• Performing Investment Calculations: Within the loop, I performed the necessary calculations to determine the investment value at the end of each year. This involved factoring in the initial investment, annual deposits, and annual interest rate to compute the end-of-year investment value.

• Displaying Results: Finally, I displayed the calculated investment value for each year in a clear and formatted manner. This step provided users with a comprehensive overview of how their investment would grow over the specified period.

By breaking down the code into these logical steps, I was able to construct an investment calculator that not only accurately computed investment growth but also provided users with a user-friendly and interactive experience.