JOptionPane.showInputDialog in Java Example

JOptionPane Class is present in javax.swing package. This class is used to display simple dialog boxes to get the text input From the user. showInputDialog method is a static method of JOptionPane class. This method uses single parameter that specifies the prompting message that is displayed in the dialog box. In this program message is- “Enter the Number for Right Angle Trangle Height?” This method returns string value. Syntax- public static String showInputDialog (String s).

Here is the Java Example for JOptionPane.showInputDialog:

import javax.swing.*; 
 public class JOptionPaneExample 
 { 
              public static void main(String[] args) 
       { 
              System.out.println("Print Right Angle Trangle"); 
           String Number = JOptionPane.showInputDialog("Enter the Number for Right Angle Trangle Height?"); 
              int n = Integer.parseInt(Number); 
              int c = 1; 
              for(int i=0;i<n;i++) 
                  { 
                      c++; 
                      for(int j=1; j<c; j++) 
                          { 
                                System.out.print(j+" "); 
                          } 
                                System.out.println(); 
                   } 
          } 
 }