Java JOptionPane

//Java program to create a showMessageDialog in JOptionPane
import javax.swing.JOptionPane;

public class MessageDialogExample {
    public static void main(String[] args) {
        // Create a JOptionPane to display a message dialog
        // The first parameter (null) specifies the dialog's parent component (usually the main frame)
        // The second parameter is the message to display ("GFG" in this case)
        // The third parameter is the title of the dialog ("Geeks Premier League 2023")
        // The fourth parameter (JOptionPane.INFORMATION_MESSAGE) specifies the message type (information icon)
        JOptionPane.showMessageDialog(null, "GFG", "Geeks Premier League 2023", 
                                           JOptionPane.INFORMATION_MESSAGE);
    }
}

//Java Program to create a showInputDialog in JOptionPane
import javax.swing.JOptionPane;

public class InputDialogExample {
    public static void main(String[] args) {
        // Prompt the user to enter their article name and store it in the 'name' variable
        String name = JOptionPane.showInputDialog("Enter your Article Name:");
        
        // Create a JOptionPane to display a message with a personalized greeting
      
        JOptionPane.showMessageDialog(null, "GFG " + name + "!");
    }
}

//Java Program to create showConfirmDialog in JOptionPane
import javax.swing.JOptionPane;

public class ConfirmDialogExample {
    public static void main(String[] args) {
        // Display a confirmation dialog with Yes, No, and Cancel options
        int choice = JOptionPane.showConfirmDialog(null, "Do you want to save changes?",
                                                   "Confirmation", JOptionPane.YES_NO_CANCEL_OPTION);
        
        // Check the user's choice and display a corresponding message
        if (choice == JOptionPane.YES_OPTION) {
            // If the user chose 'Yes', show a message indicating that changes are saved
            JOptionPane.showMessageDialog(null, "Changes saved.");
        } else if (choice == JOptionPane.NO_OPTION) {
            // If the user chose 'No', show a message indicating that changes are not saved
            JOptionPane.showMessageDialog(null, "Changes not saved.");
        } else {
            // If the user chose 'Cancel' or closed the dialog, show a message indicating the operation is canceled
            JOptionPane.showMessageDialog(null, "Operation canceled.");
        }
    }
}

// Java Program to create a 
// showOptionDialog in JOptionPane
import javax.swing.JOptionPane;

// Driver Class
public class OptionDialogExample {
      // main function
    public static void main(String[] args)
    {
        // Define an array of custom options for the dialog
        Object[] options = { "Yes", "No", "Cancel" };

        // Display an option dialog with custom options
        // The user's choice is stored in the 'choice'
        // variable
        int choice = JOptionPane.showOptionDialog(
            null, // Parent component (null means center on screen)
            "Do you want to proceed?", // Message to display
            "Custom Options", // Dialog title
            JOptionPane.YES_NO_CANCEL_OPTION, // Option type (Yes, No, Cancel)
            JOptionPane.QUESTION_MESSAGE, // Message type (question icon)
            null, // Custom icon (null means no custom icon)
            options, // Custom options array
            options[2] // Initial selection (default is "Cancel")
        );

        // Check the user's choice and display a
        // corresponding message
        if (choice == JOptionPane.YES_OPTION) {
            // If the user chose 'Yes'
            // show a message indicating that they are
            // proceeding
            JOptionPane.showMessageDialog(null,"Proceeding...");
        }
        else if (choice == JOptionPane.NO_OPTION) {
            // If the user chose 'No'
            // show a message indicating that they are not
            // proceeding
            JOptionPane.showMessageDialog(null, "Not proceeding.");
        }
        else {
            // If the user chose 'Cancel' or closed the
            // dialog
            // show a message indicating the operation is
            // canceled
            JOptionPane.showMessageDialog(null, "Operation canceled.");
        }
    }
}