ID Card Generator Using Java

This article will guide you through the steps involved in utilizing the Java programming language to create an interactive ID card generator. This study aims to provide an interesting practical experience while demystifying the complexities of Java's core ideas. It begins with a simple console-based application and concludes with an elegant GUI implementation.

Step 1: Create a Java Class for ID Card

In order to represent the ID card, start by building a Java class. There will be attributes for this class, like a name, portrait, ID number, etc. Observe this simple example:

Step 2: Design the User Interface

IDCardGenerator.java

import java.util.*;
public class IDCardGenerator {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Name of Student: ");
        String name = sc.nextLine();
        System.out.print(" ID number: ");
        int idNumber = sc.nextInt();
        // Create an IDCard object
        IDCard idCard = new IDCard(name, idNumber);
        // Display the generated ID card
        displayIDCard(idCard);
    }
    private static void displayIDCard(IDCard idCard) {
        // Display ID card details
        System.out.println("\nGenerated ID Card:");
        System.out.println("Name Of Student: " + idCard.getName());
        System.out.println("ID Number: " + idCard.getIdNumber());
        // Display other attributes
    }
}

Step 3: Compile and run

Run the IDCardGeneratorUI class after compiling your Java classes. After entering the name and ID number as instructed, the application will show the created ID card.

CreateId.java

import java.util.*;
class IDCard {
    private String n; // Changed variable name to 'n'
    private int id; // Changed variable name to 'id'
    // Add more attributes as needed
    // Constructor
    public IDCard(String n, int id) {
        this.n = n;
        this.id = id;
        // Initialize other attributes here
    }
    // Getter and Setter methods
    public String getN() {
        return n;
    }
    public void setN(String n) {
        this.n = n;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
}
public class CreateId {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Name  of Student: ");
        String name = sc.nextLine();
        System.out.print("ID number: ");
        int idNumber = sc.nextInt();
        // Create an IDCard object
        IDCard idCard = new IDCard(name, idNumber);
        // Display the generated ID card
        displayIDCard(idCard);
    }
    private static void displayIDCard(IDCard idCard) {
        // Display ID card details
        System.out.println("\nID Card:");
        System.out.println("Name: " + idCard.getN());
        System.out.println("ID Number: " + idCard.getId());
        // Display other attributes
    }
}

Output:

Name of Student: Ram
ID number: 123321

ID Card:
Name: Ram
ID Number: 123321

Explanation

We have developed a straightforward console-based ID card generator in this program. It allows users enter their ID number and name. The created ID card details were then shown by the program, giving users a basic understanding of Java classes and user input handling.

ID Card Generator Using AWT and Swings in Java

IDCardGeneratorUI.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class IDCard {
    private String n; 
    private int id; 
    public IDCard(String n, int id) {
        this.n = n;
        this.id = id;
        // Initialize other attributes here
    }
    // Getter and Setter methods
    public String getN() {
        return n;
    }
    public void setN(String n) {
        this.n = n;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    // Add more getter and setter methods for other attributes
}
public class IDCardGeneratorUI {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> createAndShowGUI());
    }
    private static void createAndShowGUI() {
        JFrame frame = new JFrame("ID Card Generator");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel panel = new JPanel(new GridLayout(4, 2, 10, 10));
        JLabel nameLabel = new JLabel("Name:");
        JTextField nameField = new JTextField();
        JLabel idLabel = new JLabel("ID Number:");
        JTextField idField = new JTextField();
        JButton generateButton = new JButton("Generate ID Card");
        JLabel resultLabel = new JLabel();
        panel.add(nameLabel);
        panel.add(nameField);
        panel.add(idLabel);
        panel.add(idField);
        panel.add(generateButton);
        panel.add(resultLabel);
        generateButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String n = nameField.getText(); // Kept variable name as 'n'
                int id = Integer.parseInt(idField.getText()); // Kept variable name as 'id'
                // Create an IDCard object
                IDCard idCard = new IDCard(n, id);
                // Display the generated ID card
                resultLabel.setText("<html><b>Generated ID Card:</b><br>Name: " + idCard.getN() +
                        "<br>ID Number: " + idCard.getId() + "</html>");
            }
        });
        frame.getContentPane().add(BorderLayout.CENTER, panel);
        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}

Output:

When we click the Generate ID Card button, we get the ID card.

Explanation

By enabling direct input through a visual interface, we enhanced the user experience by switching to a graphical user interface (GUI) with Swing. The produced ID card details are now shown in the main window, demonstrating event handling and fundamental Swing components.

Conclusion

In conclusion, these projects covered fundamental ideas such classes, constructors, getters, and setters, user input processing, and GUI implementation while offering practical experience in Java development. They act as jumping off places for more complex projects and the investigation of other Java features.

Next TopicIntrospection in JavaBeans

← prev next →