Please! can anyone help me on this, Please!

[t_b_a_t_e]

Hi!,
Please! anyone help me on this and If anyone read this please help me on this and I don't know what is the problem on this and here is an sample output. Please!, help me on this.

Sample Output:
Enter Month Code: 1
January

Enter Month Code: a
Letter is Not Accepted!!!


Here is the Java Code:

import java.awt.*;
import java.applet.*;
import java.awt.event.*;


public class MonthApp extends Applet implements ActionListener
{
Label lmonth=new Label("Enter Month Code:");
TextField tmonth=new TextField(3);
Font large=new Font("Tahoma",Font.BOLD,15);
Button displaymonth=new Button("Display Month!!!");

public void init()
{

add(lmonth);
add(tmonth);
add(displaymonth);
displaymonth.addActionListener(this);
}
public void actionPerformed(ActionEvent AlcioAbaquita)
{
int monthcode=Integer.parseInt(tmonth.getText());
Label month=new Label("");
Label text=new Label("");
String displaybutton=displaymonth.getLabel();
switch (monthcode)
{
case 1:
month.setText("January");
month.setFont(large);
add(month);
break;
case 2:
month.setText("February");
month.setFont(large);
add(month);
break;
case 3:
month.setText("March");
month.setFont(large);
add(month);
break;
case 4:
month.setText("April");
month.setFont(large);
add(month);
break;
case 5:
month.setText("May");
month.setFont(large);
add(month);
break;
case 6:
month.setText("June");
month.setFont(large);
add(month);
break;
case 7:
month.setText("July");
month.setFont(large);
add(month);
break;
case 8:
month.setText("August");
month.setFont(large);
add(month);
break;
case 9:
month.setText("September");
month.setFont(large);
add(month);
break;
case 10:
month.setText("October");
month.setFont(large);
add(month);
break;
case 11:
month.setText("November");
month.setFont(large);
add(month);
break;
case 12:
month.setText("December");
month.setFont(large);
add(month);
break;
default:
month.setText("Invalid Month Code!!!");
month.setFont(large);
add(month);
text.setText("Letter is Not Accepted!!!");
text.setFont(large);
add(text);
}

validate();
}
}

[prometheuzz]

Well, you're only telling your applet to display a moth if the input is a number between 1 and 12. If the input is 'a', it does the default thing in the switch statement.

[Norm]

What is the program doing incorrectly? Or what do you want it to do that it is not doing?
It looks like it is working correctly.

[nspils]

Where are you generating your action event? I don't find anything in your code which would send a "AlcioAbaquita" message to your ActionListener.

Also - you have a lot of repeating code (all of the display stuff). Can you think of a way to decompose that?

[sjalle]

I have restructure and enhanced this a bit. Also, I changed the logic that
repeatedly created new labels and added them, didn't look good

import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class MonthApp
    extends Applet
    implements ActionListener {

  Label month = new Label("");
  Label text = new Label("");
  Label lmonth = new Label("Enter Month Code:");
  TextField tmonth = new TextField(3);
  Font large = new Font("Tahoma", Font.BOLD, 15);
  Button displaymonth = new Button("Display Month!!!");

  String [] months={
    "January","February","March","April","May","June",
    "July","August","September","October","November", "December"
  };

  public void init() {
    add(lmonth);
    add(tmonth);
    add(displaymonth);
    add(month);
    add(text);
    displaymonth.addActionListener(this);
    month.setFont(large);
    text.setFont(large);
  }

  public void actionPerformed(ActionEvent ae) {
    clearMsg();

    String entry=tmonth.getText().trim();
    try {
      int monthcode = Integer.parseInt(entry);
      getMonthByNumber(monthcode);
    }
    catch (NumberFormatException ex) {
      getMonthByString(entry);
    }
    validate();
  }
  /**
   * Get a month by character match
   */
  private void getMonthByString(String entry) {
    // check for sensible string input
    for (int i=0; i<months.length; i++) {
      if (months[i].toLowerCase().startsWith(entry.toLowerCase())) {
        getMonthByNumber(i+1);
        return;
      }
    }
    issueErrorMsg();
  }
  /**
   * Get a month by number
   */
  private void getMonthByNumber(int monthcode) {

    if (monthcode >=1 && monthcode <= 12) {
      month.setText(months[monthcode-1]);
    } else {
      issueErrorMsg();
    }
  }

  private void issueErrorMsg() {
    month.setText("Invalid Month Code!!!");
    text.setText("Input is Not Accepted!!!");
  }
  private void clearMsg() {
    month.setText("");
    text.setText("");
  }

  /**
   * Test driver for applet
   * @param args
   */
  public static void main (String [] args) {
    Frame f=new Frame();
    f.setLayout(new GridLayout());
    MonthApp ma=new MonthApp();
    f.add(ma);
    f.setBounds(20,20,600,400);
    f.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    ma.init();
    f.setVisible(true);
  }

}