# Java Projects for Beginners with Solutions and Explanation

## Java Beginners Projects

You may read our Java tutorial and practice Java exercises before solving the following projects

**1. **

**Simple Calculator :** Perform basic arithmetic operations like addition, subtraction, multiplication, and division.

**Input:** 5, 3, +

**Output:** 8

**2. **

**Currency Converter :** Convert between different currencies based on user input.

**Input:** 100 USD to EUR

**Output:** 92.50 EUR (depends on current exchange rate)

**3. **

**Unit Converter :** Convert between various units (e.g., length, temperature, weight).

**Input:** Value, unit type (e.g., length, weight), and unit to convert to.

**Output:** Converted value in the target unit.

**4. **

**Number Guessing Game :** User guesses a randomly generated number within a range.

**Input:** User's guess of a number within a range (e.g., 1-100).

**Output:** Indication of whether the guess is too high, too low, or correct.

**5. **

**Tic-Tac-Toe Game :** Create a simple two-player console-based game.

**Input:** Player move (row and column) on a 3x3 grid.

**Output:** Updated game board and game status (win/draw/continue).

**6. **

**Palindrome Checker :** Check whether a given word or phrase is a palindrome.

**Input:** A word or phrase.

**Output:** Whether the input is a palindrome or not.

**7. **

**BMI Calculator :** Calculate Body Mass Index based on user input for weight and height.

**Input:** Weight (kg) and height (m).

**Output:** BMI value and corresponding category (e.g., underweight, normal, overweight).

**8. **

**Prime Number Checker :** Determine whether a given number is prime or not.

**Input:** A number.

**Output:** Whether the number is prime or not.

**9. **

**Factorial Calculator :** Calculate the factorial of a number using loops or recursion.

**Input:** A number.

**Output:** Factorial of the number.

**10. **

**Fibonacci Sequence Generator :** Generate the first N numbers of the Fibonacci sequence.

**Input:** Number of terms.

**Output:** First N numbers in the Fibonacci sequence.

**11. **

**Armstrong Number Checker :** Check if a number is an Armstrong number.

**Input:** A number.

**Output:** Whether the number is an Armstrong number or not.

**12. **

**Vowel Counter :** Count the number of vowels in a given string.

**Input:** A string.

**Output:** Number of vowels in the string.

**13. **

**Password Validator :** Check if a password meets certain security criteria (e.g., length, special characters).

**Input:** A password string.

**Output:** Whether the password is valid based on criteria (e.g., length, special characters).

**14. **

**Basic Banking System :** Create simple banking features like deposit, withdrawal, and balance check.

**Input:** User commands to deposit, withdraw, or check balance.

**Output:** Updated balance after transactions.

**15. **

**Student Grade System :** Calculate and store student grades for various subjects.

**Input:** Student name and grades for multiple subjects.

**Output:** Student's average grade and status (pass/fail).

**16. **

**Simple Voting System:**

**Input:** Candidate name or number to vote for.

**Output:** Confirmation of the vote and updated vote count for each candidate.

**17. **

**Leap Year Checker:**

**Input:** A year.

**Output:** Whether the year is a leap year or not.

**18. **

**Simple Alarm Clock:**

**Input:** Set the alarm time and optional message.

**Output:** Alarm triggered at the set time with a notification.

**19. **

**Rock, Paper, Scissors Game:**

**Input:** User's choice: rock, paper, or scissors.

**Output:** Result of the game (win, lose, or draw).

**20. **

**Odd-Even Sorter:**

**Input:** A list of numbers.

**Output:** Two lists: one with odd numbers, one with even numbers.

**21. **

**Palindrome Number:**

**Input:** A number.

**Output:** Whether the number is a palindrome or not.

**22. **

**Simple Stopwatch:**

**Input:** Start and stop commands.

**Output:** Elapsed time when the stopwatch is stopped.

**23. **

**Sum of Digits:**

**Input:** A number.

**Output:** Sum of the digits of the number.

**24. **

**Reverse a String:**

**Input:** A string.

**Output:** The reversed string.

**25. **

**Find the Largest Number:**

**Input:** An array or list of numbers.

**Output:** The largest number in the list.

**Java Code Editor:**

**More to Come !**

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https://www.w3resource.com/projects/java/java_beginners_projects.php

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