import javax.swing.JOptionPane;

public class Leetspeak {
  public static void main(String[] args) {
    String leet = JOptionPane.showInputDialog("Enter your message:").toLowerCase();
    char[] originals = {'a', 'b', 'c', 'e'};
    char[] replacements = {'4', '8', '(', '3'};
    for(int i = 0; i < originals.length; i++)
     leet = leet.replace(originals[i], replacements[i]);
     JOptionPane.showMessageDialog(null, leet);
    }
  }