How to make Dialog in a Java Program using JOptionPane?
Introduction
JOptionPane is used for the dialog box that prompts users for a value or informs them in a Java program. Most of the methods in the JOptionPane are of showXXDialog
For example:
showInputDialog -> To prompt user for some input.
showMessageDialog-> To tell the user about something.
More information: https://docs.oracle.com/javase/8/docs/api/javax/swing/JOptionPane.html
Code Listing
import javax.swing.JOptionPane; public class DialogDemo { //***** Main method *****// public static void main(String[] args) { String message="Hello World"; JOptionPane.showMessageDialog(null,message); } }
Taking input
A simple program to take input from the user:
import javax.swing.JOptionPane; public class DialogDemo { //***** Main method *****// public static void main(String[] args) { String input = ""; //blank input= JOptionPane.showInputDialog(null); System.out.println("You entered = "+ input); } }