DobAgeCalc

Author: C. Manognan

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DobAgeCalc is a versatile Java-based console application designed to calculate either a person's age based on their date of birth (DOB) or their date of birth based on a given age. The application supports multiple date formats and custom delimiters, offering flexibility for various use cases.

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Features

1. Age Calculation

   • Input a Date of Birth (DOB) and a reference date (today's date or a custom date).
   • The program calculates the age in years, months, and days.

2. Date of Birth Calculation

   • Input an age and a reference date.
   • The program calculates the date of birth.

3. Flexible Input Formats

   • Supports different date formats:
     • YYYY-MM-DD (International)
     • DD-MM-YYYY (Indian)
     • MM-DD-YYYY (USA)
   • Accepts custom delimiters like -, /, or ..

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Installation

1. Clone this repository to your local machine:

git clone https://github.com/Manognan2046/DobAgeCalc.git

2. Navigate to the project directory:

cd DobAgeCalc

Open the project in your preferred Java IDE (e.g., IntelliJ IDEA, Eclipse) or compile and run the program via command line:

javac DobAgeCalc.java
java DobAgeCalc

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Input Rules

1. Date Formats Supported:

   • YYYY-MM-DD (International)
   • DD-MM-YYYY (Indian)
   • MM-DD-YYYY (USA)

2. Delimiter Choices:

   • -, /, .

3. Operation Types:

   • DOB=: Enter a date to calculate the age.
   • AGE=: Enter an age to calculate the DOB.

4. Reference Date:

   • Enter a specific reference date or type TODAY to use the current date.

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Usage

1. Run the application and follow the prompts.
2. The program will ask for:
   • DOB or AGE: Specify the type of input, either Date of Birth (DOB=YYYY-MM-DD) or Age (AGE=00YY-MM-DD).
   • Reference Date: Either choose today's date or input a custom reference date in the specified format.
   • Date Format: Enter the format (e.g., YYYY-MM-DD).
   • Delimiter: Specify the delimiter used in the date (e.g., -, /, or .).

Example 1: Calculating Age from DOB

Input:

• DOB=2000-01-15
• Do you want to take reference date as today?(y/n): y
• Enter today's date: 2024-11-16
• Reference Date: 2024-01-01
• Date Format: YYYY-MM-DD
• Delimiter: -

Output:

Your age is (DD, MM, YYYY): 17 days, 11 months,  23 years.

Example 2: Calculating DOB from Age

Input:

• AGE=23-11-17
• Enter today's date: 2024-11-16
• Date Format: YYYY-MM-DD
• Delimiter: -

Output:

Your DOB is on (DD, MM, YYYY): 15-01-2000.

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Contribution Guidelines

1. Fork the repository.
2. Create a new branch for your feature or bugfix.
3. Commit your changes with meaningful commit messages.
4. Push the changes and create a pull request.

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