Can java alert?

Question

Can java give alerts like Javascript? It would be useful!

Answer 1

Yes, that would be GUI. Hence, u would commonly create an alert box using a GUI library, like JavaFX.

https://www.tutorialspoint.com/javafx/javafx_alert.htm

Answer 2

If you are using a local console, you can do this:

// public
class Out {
public static void alert( String message) {
javax.swing.JOptionPane.showMessageDialog( null, message, "",
javax.swing.JOptionPane.INFORMATION_MESSAGE);
}
}

public class AlertTest {
public static void main(String[] args) {
Out.alert( "alert test");
}
}