Re: Help with Simple If else Statement

From:
"murari garg" <gargmurari@gmail.com>
Newsgroups:
comp.lang.java.help
Date:
17 Feb 2007 08:33:04 -0800
Message-ID:
<1171729984.934548.187610@h3g2000cwc.googlegroups.com>
On Feb 14, 9:14 am, "BlackJackal" <mcdougal.rob...@gmail.com> wrote:

Alright I thought I had this coded properly for my homework assignment
but for some reason it does not work as I thought it would. Basically
what I have to do is create an applet that will display an employee
title if you enter in an employee name and an employee name if you
enter in an employee title. It works fine when you enter in a name
but only works if you enter in the first job description.

   import javax.swing.*;
   import java.awt.event.*;
   import java.awt.*;
    public class JEmployeeTitle2 extends JApplet implements
ActionListener
   {
      JTextField nameentry = new JTextField(10);
      JTextField jobtitledisplay = new JTextField(10);

      JButton button = new JButton("Search");

      JLabel nametitle = new JLabel("Employee First and Last Name");
      JLabel titletitle = new JLabel("Employee Job Title");
      JLabel result = new JLabel("");

      String empnames[] = {"Robert McDougal" , "Christy McDougal",
"Tyler Smith"};
      String emptitles[] = {"Computer Technician", "Office Manager",
"Superman"};

       public void init()
      {
         Container con = getContentPane();
         con.setLayout(new FlowLayout());
         con.add(nametitle);
         con.add(nameentry);
         con.add(titletitle);
         con.add(jobtitledisplay);
         con.add(button);
         button.addActionListener(this);
      }

       public void actionPerformed(ActionEvent e)
      {
         Object source = e.getSource();
         if (source == button) {
            for(int i = 0; i < empnames.length; ++i) {
               if (empnames[i].equalsIgnoreCase(nameentry.getText()))
{
                  result.setText(emptitles[i]);
                  jobtitledisplay.setText(result.getText());
                  break;
               }
               else if
(emptitles[i].equalsIgnoreCase(jobtitledisplay.getText())) {
                  result.setText(empnames[i]);
                  nameentry.setText(result.getText());
                  break;
               }
               else {
                  result.setText("No Match Found");
                  jobtitledisplay.setText(result.getText());
               }
            }
         }
      }
   }


hi
in this programme you are making mistake in line

  for(int i = 0; i < empnames.length; ++i) {

in this line you should have run the for loop for i<= emnames.length
times that is

     for(int i = 0; i <= empnames.length; ++i)

Hope you might get it.

i am writing your modified programme that work

 import javax.swing.*;
   import java.awt.event.*;
   import java.awt.*;
    public class JEmployeeTitle2 extends JApplet implements
ActionListener
   {
      JTextField nameentry = new JTextField(10);
      JTextField jobtitledisplay = new JTextField(10);

      JButton button = new JButton("Search");

      JLabel nametitle = new JLabel("Employee First and Last Name");
      JLabel titletitle = new JLabel("Employee Job Title");
      JLabel result = new JLabel("");

      String empnames[] = {"Robert McDougal" , "Christy McDougal",
"Tyler Smith"};
      String emptitles[] = {"Computer Technician", "Office Manager",
"Superman"};

       public void init()
      {
         Container con = getContentPane();
         con.setLayout(new FlowLayout());
         con.add(nametitle);
         con.add(nameentry);
         con.add(titletitle);
         con.add(jobtitledisplay);
         con.add(button);
         button.addActionListener(this);
      }

       public void actionPerformed(ActionEvent e)
      {
         Object source = e.getSource();
         if (source == button) {
            for(int i = 0; i <= empnames.length; ++i) {
               if (empnames[i].equalsIgnoreCase(nameentry.getText()))
{
                  result.setText(emptitles[i]);
                  jobtitledisplay.setText(result.getText());
                  break;
               }
               else if
(emptitles[i].equalsIgnoreCase(jobtitledisplay.getText())) {
                  result.setText(empnames[i]);
                  nameentry.setText(result.getText());
                  break;
               }
               else {
                  result.setText("No Match Found");
                  jobtitledisplay.setText(result.getText());
               }
            }
         }
      }
   }

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