Dialog box in java swing

Java swing dialog box

JOptionPane.showMessageDialog(null, "java is fun");

Source: stackoverflow.com

Dialog box in java swing

import javax.swing.JOptionPane;

public class Main {
  public static void main(String[] argv) throws Exception {

    JOptionPane.showMessageDialog(null, "I am happy.");

  }
}

Source: java2s.com

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