Age Calculator Java Project Download [updated]

Before Java 8, handling dates was messy. This project introduces you to LocalDate and Period , which are the industry standards for date-time math. 2. Event Handling

You learn how to link a user’s physical click ( ActionListener ) to a specific block of logic. 3. Error Handling age calculator java project download

This project allows users to input their date of birth and calculates their exact age in years, months, and days. It uses a modern GUI approach rather than a simple console output. Java Library: Swing / AWT Logic: java.time package (LocalDate, Period) Platform: Any OS with JVM (Windows, macOS, Linux) 🛠️ Key Features Exact Calculation: Accurate to the day. Before Java 8, handling dates was messy

Open your terminal or CMD and type: javac AgeCalculator.java Run: Execute the program with: java AgeCalculator 📈 Why Build This Project? 1. Mastering java.time Event Handling You learn how to link a

If you want to make this project even better for your portfolio, consider adding:

import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.time.LocalDate; import java.time.Period; public class AgeCalculator extends JFrame implements ActionListener { private JTextField dayField, monthField, yearField; private JLabel resultLabel; private JButton calculateButton; public AgeCalculator() { setTitle("Java Age Calculator"); setSize(350, 250); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout(new GridLayout(5, 2, 10, 10)); // UI Components add(new JLabel(" Day (DD):")); dayField = new JTextField(); add(dayField); add(new JLabel(" Month (MM):")); monthField = new JTextField(); add(monthField); add(new JLabel(" Year (YYYY):")); yearField = new JTextField(); add(yearField); calculateButton = new JButton("Calculate Age"); calculateButton.addActionListener(this); add(calculateButton); resultLabel = new JLabel(" Enter your DOB", SwingConstants.CENTER); add(resultLabel); setVisible(true); } @Override public void actionPerformed(ActionEvent e) { try { int day = Integer.parseInt(dayField.getText()); int month = Integer.parseInt(monthField.getText()); int year = Integer.parseInt(yearField.getText()); LocalDate birthDate = LocalDate.of(year, month, day); LocalDate currentDate = LocalDate.now(); if (birthDate.isAfter(currentDate)) { resultLabel.setText("Date cannot be in the future!"); } else { Period age = Period.between(birthDate, currentDate); resultLabel.setText(String.format("%d Y, %d M, %d D", age.getYears(), age.getMonths(), age.getDays())); } } catch (Exception ex) { resultLabel.setText("Invalid Input!"); } } public static void main(String[] args) { new AgeCalculator(); } } Use code with caution. 📥 How to Download and Run

The use of try-catch blocks ensures that if a user types letters instead of numbers, the program doesn't crash—a vital skill for real-world software. 🌟 Suggestions for Improvements