Help with displaying integer values

I am not sure what is going on in my code.
I have a field where use
<?php
if ($pets==1) echo "Pets Allowed";
?>
and that works fine. Integer 1 in my database.
But when I want to use that for another field, same exact settings, just different field, nothing shows up. Even tried putting in quotes. I queried from mysql with success and using the entered value of 1 in the dreamweaver recordset window and it showd. But yet the PHP wont display.

That's the thing. Everything is exactly the same. The line of code is copied and only replacing pets with cdla.

Similar Messages

Help with passing integer value in A.S.S

I get an NSinternal script error while trying to pass this value can anyone help?
Also I wonder if it is possible to pass the value to a matrix
on clicked theObject
tell button "checkbox" of window 1
if integer value = 1 then
set button "checkbox2" of window 1 to integer value = 1
else
set integer value to 0
end if
end tell
end clicked
I also tried:
if state of button "checkbox" of window1 is 1 then
set the state of button "checkbox2" of window1 to 1
end if
Message was edited by: Doug Bassett

I've been following this thread and trying to figure out how to make this work. I was getting inconsistent results or errors with most of the code that has been posted. But I finally got it working... at least on a Leopard machine (not sure if this could have changed between Tiger and Leopard so your mileage may vary).
What I found was that a checkbox button that's located directly in a window seems to have a state that's equal to 0 when it's unchecked and 1 when it's checked. But a checkbox cell that's contained within a matrix seems to have a state that's set to either _off state_ or _on state_. Trying to set a cell's state to 0 or 1 simply wasn't working right for me. So I get the state of the "selectall" checkbox button (which is a 0/1) and transform it to either "off state" or "on state" before setting the states of the checkbox cells in the matrix.
Here's my code:
on clicked theObject
set n to name of theObject
if n = "selectall" then
set s to state of theObject
log "state: " & s
if s = 0 then
set newState to off state
else
set newState to on state
end if
repeat with i from 1 to count of cells of matrix "directories" of window "main"
tell cell i of matrix "directories" of window "main"
set state to newState
end tell
end repeat
return
end if
if n = "logStatesBtn" then
logStates()
return
end if
end clicked
on logStates()
log "Logging states:"
set s to state of button "selectall" of window "main"
log "selectall checkbox: " & s
repeat with i from 1 to count of cells of matrix "directories" of window "main"
tell cell i of matrix "directories" of window "main"
set s to state
end tell
log "Cell " & i & ": " & s
end repeat
end logStates
Note the "logStates" handler is just something I connected up to a "logStatesBtn" button in my window that lets me spit out the states of all the checkboxes into the console log. This is how I actually discovered that the cells were set to "off state" or "on state".
Steve

How to populate right side of Shuttle with display/return values?

Hello,
I know, that the proper way to populate the right side of shuttle is that:
declare
     v_list     apex_application_global.vc_arr2;
begin
     select profile_name return_value
       bulk     collect
       into     v_list
       from     user_profiles
      where     user_id = :p61_user_id;
     return (apex_util.table_to_string (v_list));
end;It is comfortable for the user to see the name of the profile.
However, I need a profile_id as a return value, like I have it on the left side of the shuttle.
The left side of the shuttle is populated with a select list with display/return values, as you know.
I need both sides of the shuttle to return profile_id in order to create a merge.
How is it possible to populate the right side of the Shuttle with display/return values?

All you have to do is to use the subset of shuttle query to assign value to the right side shuttle.
http://apex.oracle.com/pls/apex/f?p=50942:95
I have created a dummy page with shuttle query
SELECT ename, empno FROM emp ORDER by 1then I have defined a pl-sql before header process to assign values to shuttle variable
using the code
begin
:P95_SHUTTLE := '7566:219:7900:7782:90';
end;since 90 is not one the result set of the shuttle query it is getting displayed as number, and for others it is displaying the text. Thanks.
--Manish

Need Help: Dynamically displaying parameter values for a procedure.

Problem Statement: Generic Code should display the parameter values dynamically by taking "package name" and "procedure name" as inputs and the values needs to be obtained from the parameters of the wrapper procedure.
Example:
a) Let us assume that there is an application package called customer.
create or replace package spec customer
as
begin
TYPE cust_in_rec_type IS RECORD
cust_id NUMBER,
,cust_name VARCHAR2(25) );
TYPE cust_role_rec_type IS RECORD
(cust_id NUMBER,
role_type VARCHAR2(20)
TYPE role_tbl_type IS TABLE OF cust_role_rec_type INDEX BY BINARY_INTEGER;
Procedure create_customer
p_code in varchar2
,p_cust_rec cust_in_rec_type
,p_cust_roles role_tbl_type
end;
b) Let us assume that we need to test the create customer procedure in the package.For that various test cases needs to be executed.
c) We have created a testing package as mentioned below.
create or replace package body customer_test
as
begin
-- signature of this wrapper is exactly same as create_customer procedure.
procedure create_customer_wrapper
p_code in varchar2
,p_cust_rec customer.cust_in_rec_type
,p_cust_roles customer.role_tbl_type
as
begin
//<<<<<---Need to display parameter values dynamically for each test case-->>>>>
Since the signature of this wrapper procedure is similar to actual app procedure, we can get all the parameter definition for this procedure using ALL_ARGUMENTS table as mentioned below.
//<<
select * from ALL_ARGUMENTS where package_name = CUSTOMER' and object_name = 'CREATE_CUSTOMER'
but the problem is there are other procedures exists inside customer package like update_customer, add_address so need to have generalized code that is independent of each procedure inside the package.
Is there any way to achieve this.
Any help is appreciated.
// >>>>
create_customer
p_code => p_code
,p_cust_rec => p_cust_rec
,p_cust_roles => p_cust_roles
end;
procedure testcase1
as
l_cust_rec customer.cust_in_rec_type ;
l_cust_roles customer.role_tbl_type;
begin
l_cust_rec.cust_id := 1;
l_cust_rec.cust_name := 'ABC';
l_cust_roles(1).cust_id := 1;
l_cust_roles(1).role_type := 'Role1';
create_customer_wrapper
p_code => 'code1'
,p_cust_rec => l_cust_rec
,p_cust_roles => l_cust_role
end;
procedure testcase2
as
l_cust_rec customer.cust_in_rec_type ;
l_cust_roles customer.role_tbl_type;
begin
l_cust_rec.cust_id := 2;
l_cust_rec.cust_name := 'DEF';
l_cust_roles(1).cust_id := 2;
l_cust_roles(1).role_type := 'Role2';
create_customer_wrapper
p_code => 'code2'
,p_cust_rec => l_cust_rec
,p_cust_roles => l_cust_role
end;
end;

Not possible to dynamically in a procedure, deal with the parameter values passed by a caller. There is no struct or interface that a procedure can use to ask the run-time to give it the value of the 1st or 2nd or n parameter.
There could perhaps be some undocumented/unsupported method - as debugging code (<i>DBMS_DEBUG</i>) is able to dynamically reference a variable (see Get_Value() function). But debugging requires a primary session (the debug session) and the target session (session being debugged).
So easy answer is no - the complex answer is.. well, complex as the basic functionality for this do exists in Oracle in its DBMS_DEBUG feature, but only from a special debug session.
The easiest way would be to generate the wrapper itself, dynamically. This allows your to generate code that displays the parameter values and add whatever other code needed into the wrapper. The following example demonstrates the basics of this approach:
SQL> -- // our application proc called FooProc
SQL> create or replace procedure FooProc( d date, n number, s varchar2 ) is
2 begin
3          -- // do some stuff
4          null;
5 end;
6 /
Procedure created.
SQL>
SQL> create or replace type TArgument is object(
2          name            varchar2(30),
3          datatype        varchar2(30)
4 );
5 /
Type created.
SQL>
SQL> create or replace type TArgumentList is table of TArgument;
2 /
Type created.
SQL>
SQL> -- // create a proc that creates wrappers dynamically
SQL> create or replace procedure GenerateWrapper( procName varchar2 ) is
2          procCode        varchar2(32767);
3          argList         TArgumentList;
4 begin
5          select
6                  TArgument( argument_name, data_type )
7                          bulk collect into
8                  argList
9          from    user_arguments
10          where   object_name = upper(procName)
11          order by position;
12
13          procCode := 'create or replace procedure Test'||procName||'( ';
14          for i in 1..argList.Count
15          loop
16                  procCode := procCode||argList(i).name||' '||argList(i).datatype;
17                  if i < argList.Count then
18                          procCode := procCode||', ';
19                  end if;
20          end loop;
21
22          procCode := procCode||') as begin ';
23          procCode := procCode||'DBMS_OUTPUT.put_line( '''||procName||''' ); ';
24
25          for i in 1..argList.Count
26          loop
27                  procCode := procCode||'DBMS_OUTPUT.put_line( '''||argList(i).name||'=''||'||argList(i).name||' ); ';
28          end loop;
29
30          -- // similarly, a call to the real proc can be added into the test wrapper
31          procCode := procCode||'end;';
32
33          execute immediate procCode;
34 end;
35 /
Procedure created.
SQL>
SQL> -- // generate a wrapper for a FooProc
SQL> exec GenerateWrapper( 'FooProc' );
PL/SQL procedure successfully completed.
SQL>
SQL> -- // call the FooProc wrapper
SQL> exec TestFooProc( sysdate, 100, 'Hello World' )
FooProc
D=2011-01-07 13:11:32
N=100
S=Hello World
PL/SQL procedure successfully completed.
SQL>

How can I populate a UILabel with an Integer value?

I have a UILabel field and I want to display an integer value in this field.
I used lblTemp.text = @"number of apples"; this worked for string only. But now I have an TempInt integer whose value I want to put into the lblTemp.text.
my final label field should be "number of apples is <TempInt>"
Any suggestions on the syntax to do this?
thanks for the help,
Max

[NSString stringWithFormat:@"%d", tempInt]

Help with display quality (LCD TV)

I've hooked up my Mac mini to my Samsung 32" LCD TV via HDMI cable.
The overall quality is just far from desireable and is taking away all of the fun from using this new mac.
I set the resolution output to 720p, which is what the TV supports. So that's good.
I played slightly with the Contrast and Brightness on the TV settings.
But I must be missing something. Although the image is sharp, it's very difficult to read from 6ft away, pictures look terrible (seeing the same picture on a different computer and monitor is so much more revealing), and the display is bad for everything basically.
Please help with any settings suggestions or perhaps a detailed guideline for my setup.
I started to configure a color profile on the display settings but the results weren't that great and I reverted to default. Too many subtle changes. My colorblindness probably doesn't help.
Thanks.

Thanks for the response.
It's the latest Mac Mini with 2.5ghz i5, AMD Radeon HD 6630M, and 8GB RAM.
I am familiar with the "Just Scan" setting under picture size on the Samsung TV.
I'll look for the digital noise reduction.
Are there complete guides with recommended settings for different setups? Or maybe even general, that would help me here?
Thanks.

Help with display settings needed urgently

Graphics and icons that are supposed to be round appear oval. For instance the Safari and App icons on the dock appear very oval. Logos on websites I've visited before and I know are round appear oval.
I've tried all display settings and nothing helps. I'm a designer and this is causing a major hinderance. Everything appears condenced / squashed sideways. I'd be very grateful if someone could help with this.
I've just purchased the laptop. I have been using Mac for a few years and I've always selected the "stretched" option from the Display settings which sorted out the problem completely. A circle looked a proper circle. But in this version the option is not available.
Badly hoping someone can help with this.
Thanks.
Version Details - OS X Lion 10.7.4

It sounds like you have selected an incorrect resolution. For starters, are you talking about your Air's display or an external display? You haven't said which Air you have. If you have an 11" model, make sure your display resolution is set to 1366x768. If you have a 13" model, it should be set to 1440x900. These are the proper resolutions for the built in displays. Chosing anything other than the referenced "native" display resolutions will result in distortions or clarity problems.

Help with display of numbers

First of all I have to say the tutorials on this site are extremely helpful. My instructor wants all our java code written as Object Oriented and when I did a search on here for Object Oriented it totally helped out. Now I just need help with the display of numbers, my code works perfectly fine except that the number has wayyyyyyyyyyy to many decimal points after it. I only wanted two.
public class Mortgage
     double mtgAmount;
     double mtgTerm;
     double mtgRate;
     double monthPymt;
          public void Amount(double newValue)
               mtgAmount = newValue;
          public double Amount()
               return mtgAmount;
          public void Term(double newValue)
               mtgTerm = newValue;
          public double Term()
               return mtgTerm;
          public void Rate(double newValue)
               mtgRate = newValue;
          public double Rate()
               return mtgRate;
          public void calcmonthPymt(double newValue)                            //(LoanAmt * Rate) / (1- Math.pow(1+Rate,-Term));
               monthPymt = (newValue);
          public void display()
          System.out.println ("The Mortgage Amount is:" +(Amount( ) * Rate( )) / (1- Math.pow(1+Rate( ),-Term( ))));
     public static void main (String[] args)
               Mortgage Mortgage1=new Mortgage();
               Mortgage1.Amount(200000);
               Mortgage1.Term(360);
               Mortgage1.Rate(.0575);
               Mortgage1.display();
}

I figured it out, the math is wrong I think but I got everything to display correctly
import java.io.*;
import java.text.*;
import java.text.DecimalFormat;
public class Mortgage
     double mtgAmount;
     double mtgTerm;
     double mtgRate;
     double monthPymt;
     DecimalFormat money = new DecimalFormat("$0.00");
          public void Amount(double newValue)
               mtgAmount = newValue;
          public double Amount()
               return mtgAmount;
          public void Term(double newValue)
               mtgTerm = newValue;
          public double Term()
               return mtgTerm;
          public void Rate(double newValue)
               mtgRate = newValue;
          public double Rate()
               return mtgRate;
          public void calcmonthPymt(double newValue)                            //(LoanAmt * Rate) / (1- Math.pow(1+Rate,-Term));
               monthPymt = (newValue);
          public void display()
          monthPymt = (Amount( ) * Rate( )) / (1- Math.pow(1+Rate( ),-Term( )));
          System.out.printf("The payment amount is:$%.2f", monthPymt);
          System.out.println();
     public static void main (String[] args)
               Mortgage Mortgage1=new Mortgage();
               Mortgage1.Amount(200000);
               Mortgage1.Term(360);
               Mortgage1.Rate(.0575);
               Mortgage1.display();
}

Help with displaying image received from socket on Canvas

Dear programmers
I know that I'm pestering you lot for a lot of help but I just got one tiny problem which I just can't get over.
I'm developing a remote desktop application which uses an applet as it's client and I need help in displaying the image.
When a connection is made to the server, it continuously takes screenshots, converts them to jpg and then send them to the client applet via socket communication. I've got the the server doing this in a for(;;) loop and I've tested the communication and all seems to be working fine. However the applet is causing some issues such as displaying "loading applet" until I stop the server and then the 1st screenshot is displayed. Is there a way to modify the following code so that it displays the current image onto a canvas while the next image is being downloaded and then replace the original image with the one which has just been downloaded. All this needs to be done with as little flicker as possible.
for(;;)
    filename = dis.readUTF();
    fileSize = dis.readInt();
    fileInBuffer = new byte[fileSize];
    dis.readFully(fileInBuffer, 0, fileSize-1);
    //Create an image from the byte array
    img = Toolkit.getDefaultToolkit().createImage(fileInBuffer);
    //Create a MyCanvas object and add the canvas to the applet
    canvas = new IRDPCanvas(img, this);
    canvas.addMouseListener(this);
    canvas.addKeyListener(this);
    add(canvas);
}

Anyone?

Help with display glith using JList

Hi, first post so bit of background - I'm teaching Java at the moment, am fine with command line but am dabbling more with Swing, despite certain glitches I always get ( e.g. the 7-segment display last year) but anyway....
I've been trying to develop a little app that picks random boxers for a computer game. My current problem is that i am trying to add custom boxers and then update the JList and repaint the frame. When I add a boxer i can see it adding to the list, however it is unreadable and displayed too small.
Forgive any bad coding etiquettes - its very much a work in progress from a relatively poor programmer ;)
theBoxers is a JPanel containing the JLists, aWindow is the JFrame, customButton is a button to add a custom fighter - this gets a name from a field, and a weight from a combo box, adds it to an array and then attempts to add it to an array, then re-generate the lists
customButton.addActionListener(new ActionListener()
            public void actionPerformed(ActionEvent e)
                    addCustom(customCombo.getSelectedIndex(),addCustomName.getText());
                         System.out.println(customCombo.getSelectedIndex() + addCustomName.getText());
                         theBoxers.repaint();
                         aWindow.repaint();
public void addCustom(int theWeight, String theName)
          switch(theWeight)
               case 0:          featherCustoms[featherCustomsSize]=theName;
                              featherFighters = new JList(featherCustoms);
                              featherCustomsSize++;
                              break;
               case 1:          lightCustoms[lightCustomsSize]=theName;
                              lightFighters = new JList(lightCustoms);
                              lightCustomsSize++;
                              break;
               case 2:          welterCustoms[welterCustomsSize]=theName;
                              welterFighters = new JList(welterCustoms);
                              welterCustomsSize++;
                              break;
               case 3:          middleCustoms[middleCustomsSize]=theName;
                              middleFighters = new JList(middleCustoms);
                              middleCustomsSize++;
                              break;
               case 4:          lightHeavyCustoms[lightHeavyCustomsSize]=theName;
                              lightHeavyFighters = new JList(lightHeavyCustoms);
                              lightHeavyCustomsSize++;
                              break;
               case 5:          heavyCustoms[featherCustomsSize]=theName;
                              heavyFighters = new JList(heavyCustoms);
                              heavyCustomsSize++;
                              break;
               default:     System.out.println("Not Added");
                              break;
     }

Awww, its nice that DB has someone to comeback and carry on a discussion.....long after its over.
The problem here seems to be your lack of understanding between what a teacher or what an 'instructor' is.
From the way you speak, an instructor appears to be someone who is technically skilled in both coding and teaching Java as a programming language, designed for people who wish to code in Java.
A Teacher is someone who must deliver a wide range of subject knowledge to a wide range of abilities, including those who were unable to pass High-School exams. They are responsible for pitching the subject at the correct level for the student, whilst also teaching towards passing the exam, and ultimately gaining a qualification.
The computing course i am currently teaching does not require OOP, but as Java is the language i was taught at University, and is still often used in our University's, I chose it. I don't pretend to be the best programmer in the world. But I do know that I am teaching the pupils the correct basics, at a higher level than is probably required, to give them the right approach at university. also, this is whilst teaching a large amount of theory.
Whether you agree, or disagree, matters not to me as I think you would be unfamilier with the specification I am currently teaching to, or what area's of study need to be taught. The exam board appears happy, as do past students who are now well into their university course, as did my marker when i achieved my degree.
The code posted in the OP (as stated earlier) had nothing to do with displaying my coding abilities, nor did it display the technique's I use when teaching students. It was a small sample of a program which included a JList which was not displaying properly. I tried to include the whole code but it was too big, therefore it was cut down.
It was a work in progress which i now have working. So now i can look at it again in terms of programming structure. It appears I have made a mistake asking for assistance on here, as instead I got a lecture, with very little insight on your part as to my situation or the nature of the problem/solution.
At the end of the day, each to his/her own opinion. What I will say is that when someone requests help, positive feedback/criticism is well recieved along with instructions/guidance on how the problem can be solved. I feel that I received none of this on here, but this is what I will always provide to the students I teach.
Not everyone is a full-time Java programmer or has the time to hit the highest expectations.

OVS Value help with a preallocate value

Hi everybody,
i use a OVS Value Help whitch contains one field and a button for search.
Now i want to preallocate this field with a default value and execute the search automatically when the OVS View appears.
How can i do it?
Regards,
Sid
Edited by: Sid on Nov 7, 2011 1:05 PM

Hi Sid,
You can set default value to the field in value help within the method applyInputValues() and within this method, call onQuery() method which contains the logic for fetching the search results. Please find below the sample code for applyInputValues():
public void applyInputValues(IWDNodeElement applicationNodeElement, IWDNodeElement queryInputNodeElement)
     // On clicking Value help pop-up icon, get all the records from database
     wdContext.nodeDemoOutput().invalidate();
     queryInputNodeElement.setAttributeValue(IDemoInputElement.NAME, "<default_value>");
     onQuery(queryInputNodeElement, wdContext.nodeDemoOutput());
Hope this helps.
Regards,
Pavithra

How to display integer values and decimal values in same column in a table

hi
in my report amount column is there in that column integer values (2234) and decimal values (3562.34)
i want to print this values as 1000 separate as like 2,234 as integer and 3,562.34 as decimal
but this values print like 2,234.00 as integer and 3,562.34 as decimal

Hi akilreddy,
Per my understanding you have an field which data type may be "float" in the DB, so it have value which format like "2234" and "3562.34" in the same column, now you want to format them differently in the report, right?
I have tested on my local environement and you can use the expression in the custom format in the Textbox properties to do this:
Right click the field which you want to add the format and select the "Text Box Properties"
Select the "Number" on the left pane and using expression below in the Custom format:
=IIF(Split(Fields!yourfieldname.Value,".").Length=2,"#,###.##",Nothing)
Or you can just use "#,###.##" in the format.
Preview you will go the result like below:
If you still have any problem, please feel free to ask.
Regards
Vicky Liu
Vicky Liu
TechNet Community Support

How I can extend JSlider to work with non-integer values?

I need to create slider with non-integer scale. How I can do it?

As it turns out, I found a solution by myself. By using the "onBlur" method instead of the "onChange" method, I got what I needed.
Thanks,
Ralph

Help with displaying my xml file in my jtext area

Hi i am trying to read the data from my xml file and display it once the user clicks on the list all button.
below is the source code for my program can someone please tell me some code to this.
package tractorgui;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.XMLEncoder;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.beans.XMLDecoder;
import javax.swing.*;
import javax.swing.border.LineBorder;
//import tractor.TextInputPrompt;
import tractor.Tractor;
* This code was edited or generated using CloudGarden's Jigloo
* SWT/Swing GUI Builder, which is free for non-commercial
* use. If Jigloo isbeing used commercially (ie, by a corporation,
* company or business for any purpose whatever) then you
* should purchase a license for each developer using Jigloo.
* Please visit www.cloudgarden.com for details.
* Use of Jigloo implies acceptance of these licensing terms.
* A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR
* THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED
* LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
public class NewSwingApp extends javax.swing.JFrame {
//          //Set Look & Feel
//          try {
//               javax.swing.UIManager.setLookAndFeel("com.jgoodies.looks.plastic.Plastic3DLookAndFeel");
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//               e.printStackTrace();
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     private JPanel labelpannel;
     private JButton listall;
     private JPanel MenuButtons;
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     private JTextArea outputscreen;
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     private JButton addtractor;
     private JButton listallexbited;
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     private JScrollPane jScrollPane1;
private int numberOfTractors;
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                    MenuButtons.setLayout(MenuButtonsLayout);
                    MenuButtons.setPreferredSize(new java.awt.Dimension(223, 267));
                         listall = new JButton();
                         MenuButtons.add(getListall());
                         listall.setText("List All");
                         listall.setBackground(new java.awt.Color(0,255,255));
                         listall.setForeground(new java.awt.Color(0,0,0));
                         listall.setBorder(new LineBorder(new java.awt.Color(0,0,0), 1, false));
                         listall.setFont(new java.awt.Font("Arial",2,14));
                         listall.addActionListener(new ActionListener() {
                              /* (non-Javadoc)
                              * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
                              public void actionPerformed(ActionEvent evt) {
                                   String XMLFile = "tractor.xml-courseworkasignment/src";
                                   //** Prints the contents of my XML file
                                   try {
                                   String s;
                                   BufferedReader in = new BufferedReader( new FileReader(XMLFile)
                                   outputscreen.setText("File successfully opened");
                                   try {
                                   while ( (s=in.readLine()) !=null)
                                   outputscreen.append(s);
                                   catch(Exception e) {
                                        outputscreen.append("Error reading line: " + e.getMessage());
                                   outputscreen.append("End of Document");
                                   catch(FileNotFoundException e) {
                                        outputscreen.append("Error in opening file: " + e.getMessage());
                         listallexbited = new JButton();
                         MenuButtons.add(getListallexbited());
                         listallexbited.setText("List All Tractors On Exhibition ");
                         listallexbited.setPreferredSize(new java.awt.Dimension(157, 57));
                         listallexbited.setBackground(new java.awt.Color(0,255,255));
                         listallexbited.setForeground(new java.awt.Color(64,0,0));
                         listallexbited.addActionListener(new ActionListener() {
                              public void actionPerformed(ActionEvent evt) {
                                   outputscreen.repaint();
                                   String XMLFile = "C:tractor.xml";
                              // Print contents of XML file
                              try {
                              String s;
                              BufferedReader in = new BufferedReader( new FileReader(XMLFile)
                              outputscreen.setText("File successfully opened");
                              try {
                              while ( (s=in.readLine()) !=null)
                              outputscreen.append(s);
                              catch(Exception e) {
                                   outputscreen.append("Error reading line: " + e.getMessage());
                              outputscreen.append("End of Document");
                              catch(FileNotFoundException e) {
                                   outputscreen.append("Error in opening file: " + e.getMessage());
                         addtractor = new JButton();
                         MenuButtons.add(getAddtractor());
                         addtractor.setText("Add Tractor ");
                         addtractor.setBackground(new java.awt.Color(0,255,255));
                         addtractor.setForeground(new java.awt.Color(64,0,0));
                         addtractor.addActionListener(new ActionListener() {
                              public void actionPerformed(ActionEvent evt) {
                                   String manufacturer =JOptionPane.showInputDialog(getComponent(0), "Enter Manufacturer of Tractor");
                                   String shp = (JOptionPane.showInputDialog(getComponent(0), "Enter Horse Power of Tractor"));
                                   int hp =Integer.parseInt(shp);
                                   int sisRare =Integer.parseInt(JOptionPane.showInputDialog(getComponent(0), "Enter If the Tractor is rare (1=Yes/2=No)"));
                                   boolean isRare;
                                   if (sisRare== 1) {
                                   isRare =true;
                                   }else
                                        isRare =false;
                                   String yom= JOptionPane.showInputDialog(getComponent(0), "Enter Year of Manufacture");
                                   int yearOfManufacture =Integer.parseInt(yom);
                                   String yis =JOptionPane.showInputDialog(getComponent(0), "Enter Number of years the Tractor has been in service");
                                   int yearsInService =Integer.parseInt(yis);
                                   String svalue = JOptionPane.showInputDialog(getComponent(0), "Enter Tractor's Value (?Pounds)");
                                   double value = Double.parseDouble(svalue);
                                   String lastWorkPlace =JOptionPane.showInputDialog(getComponent(0), "Enter Last Workplace");
                                        if(NewSwingApp.addTractor(new Tractor(manufacturer, hp, isRare, yearOfManufacture, yearsInService, value, lastWorkPlace, false)))
                                   JOptionPane.showMessageDialog((getComponent(0)), "Tractor Added");
                                   else
                                        JOptionPane.showMessageDialog(getComponent(0), "Could not Add Tractor");
                         deletetractor = new JButton();
                         MenuButtons.add(getDeletetractor());
                         deletetractor.setText("Delete Tractor ");
                         deletetractor.setBackground(new java.awt.Color(0,255,255));
                         deletetractor.setForeground(new java.awt.Color(64,0,0));
                         deletetractor.addActionListener(new ActionListener() {
                              public void actionPerformed(ActionEvent evt) {
                                   System.out.println("deletetractor.actionPerformed, event="+evt);
                                   JOptionPane.showInputDialog(getComponent(0), "Enter Tractor ID");
                         exhibittractor = new JButton();
                         MenuButtons.add(getExhibittractor());
                         exhibittractor.setText("Exhibit Tractor");
                         exhibittractor.setBackground(new java.awt.Color(0,255,255));
                         exhibittractor.setForeground(new java.awt.Color(0,0,0));
                         exhibittractor.addActionListener(new ActionListener() {
                              public void actionPerformed(ActionEvent evt) {
                                   System.out.println("exhibittractor.actionPerformed, event="+evt);
                                   JOptionPane.showInputDialog(getComponent(0), "Enter Tractor I.D");
                         archivetractor = new JButton();
                         MenuButtons.add(getArchivetractor());
                         archivetractor.setText("Archive Tractor");
                         archivetractor.setBackground(new java.awt.Color(0,255,255));
                         archivetractor.setForeground(new java.awt.Color(0,0,0));
                         archivetractor.addActionListener(new ActionListener() {
                              public void actionPerformed(ActionEvent evt) {
                                   System.out.println("archivetractor.actionPerformed, event="+evt);
                                   JOptionPane.showInputDialog(getComponent(0), "Enter Tractor I.D");
                         searchmanufacturer = new JButton();
                         MenuButtons.add(searchmanufacturer);
                         searchmanufacturer.setText("Search Manufacturer");
                         searchmanufacturer.setPreferredSize(new java.awt.Dimension(159, 21));
                         searchmanufacturer.setBackground(new java.awt.Color(0,255,255));
                         searchmanufacturer.setForeground(new java.awt.Color(64,0,0));
                         searchmanufacturer.addActionListener(new ActionListener() {
                              public void actionPerformed(ActionEvent evt) {
                                   System.out.println("searchmanufacturer.actionPerformed, event="+evt);
                                   JOptionPane.showInputDialog(getComponent(0), "Enter Manufacturer Name");
                    outputscreen = new JTextArea();
                    getContentPane().add(outputscreen, BorderLayout.CENTER);
                    outputscreen
                              .setText("");
                    outputscreen.setBorder(BorderFactory.createTitledBorder(""));
                    outputscreen.setWrapStyleWord(true);
                    outputscreen.setEditable(false);
                    outputscreen.setEnabled(true);
                    outputscreen.setBackground(new java.awt.Color(255, 255, 255));
                    outputscreen.setForeground(new java.awt.Color(64, 0, 0));
                    companyname = new JLabel();
                    getContentPane().add(companyname, BorderLayout.NORTH);
                    companyname.setText(" Wolvesville Tractor Museum");
                    companyname.setPreferredSize(new java.awt.Dimension(609, 85));
                    companyname.setBackground(new java.awt.Color(255,255,0));
                    companyname.setFont(new java.awt.Font("Arial",1,28));
                    companyname.setForeground(new java.awt.Color(0,0,0));
                    companyname.setBorder(BorderFactory.createTitledBorder(""));
                    companyname.setOpaque(true);
               this.setSize(750, 750);
          } catch (Exception e) {
               e.printStackTrace();
     protected static boolean addTractor(Tractor tractor) {
               if (tractor.getManufacturer()==null) return false; else
               if (tractor.getHp()<50||tractor.getHp()>1100) return false; else
               if (tractor.getIsRare()==false) return false; else
               if (tractor.getYearsInService()<1||tractor.getYearsInService()>200) return false; else
               if (tractor.getYearOfManufacture()<1800||tractor.getYearOfManufacture()>2008) return false; else
               if (tractor.getValue()<100||tractor.getValue()>1500) return false; else
               if (tractor.getLastWorkPlace()==null) return false; else
          return true;
     public JPanel getMenuButtons() {
          return MenuButtons;
     public JButton getListall() {
          return listall;
     public JLabel getCompanyname() {
          return companyname;
     public JButton getExitsystem() {
          return jButton3;
     public JButton getSearchmanufacturer() {
          return searchmanufacturer;
     public JButton getListallexbited() {
          return listallexbited;
     public JButton getAddtractor() {
          return addtractor;
     public JButton getDeletetractor() {
          return deletetractor;
     public JButton getExhibittractor() {
          return exhibittractor;
     public JButton getArchivetractor() {
          return archivetractor;
     public JTextArea getOutputscreenx() {
          return outputscreen;
public void savetractors () {
     try {
          XMLEncoder encoder = new XMLEncoder(new FileOutputStream("tractor.xml"));
          encoder.writeObject(tractors);
          encoder.close();
     } catch (FileNotFoundException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
public void loadtractors () {
try {
          XMLDecoder decoder = new XMLDecoder(new FileInputStream("tractor.xml"));
          tractors = (Tractor[]) decoder.readObject();
          decoder.close();
          for (int i=0; i<tractors.length;i++) {
               if (tractors!=null)numberOfTractors =i;
          numberOfTractors++;
     } catch (FileNotFoundException e) {
          // TODO Auto-generated catch block
          tractors=new Tractor[25];
          numberOfTractors=0;

here's an example:
http://jdj.sys-con.com/read/37550.htm
you need to have a class Tractor with all those properties and then use readObject.Somehow you need to tell the Encoder/Decoder what Tractor means..
hope this helps!!

Help with getting array values from a file

Hey ppl. Im doing a programming assignment just now and im completely stumped. I know i can ask my tutor but that will take a week (he is never in) so i was wondering if any of you could help. The basic idea is that you have to store numbers read from a file into an array. The catch is that you are not given the size of the array, you have to discover this by counting the numbers in the file. It terminates when -1 is discovered. This 'count' then states the size of the array.
I got this done ok and i thought I was on easy street after that. All i had to do was read the numbers into the array but alas its not working. The compiler gives it the ok, but when i run the program i get the following error
Exception in thread "main" java.lang.nullPointerException
at marks.main(marks.java:48)
By the way line 48 is as follows
numbers[index] = Integer.parseInt(infile.readLine().trim());
and here is the evil program!!!!!
//Paul Rodger ***MARKS*** 14/1/02
//A program which takes numbers from a file and enters them into an array.
//The stream of numbers is terminated when the number -1 is discovered
import java.io.*;
class marks
static BufferedReader keyboard = new
BufferedReader(new InputStreamReader(System.in));
static PrintWriter screen = new PrintWriter(System.out, true);
static public void main(String[] args) throws IOException{
FileReader file = new FileReader("numbers.txt");
BufferedReader infile = new BufferedReader(file);
//local Data
int COUNT;
double x;
char ans;
COUNT=0; // initialising the counter
//inputs values and calculates the sum
x = Double.parseDouble(infile.readLine().trim());
while (x>=0){
COUNT++;
x= Double.parseDouble(infile.readLine().trim());
// display the count
screen.println("the number of values entered was : " +COUNT );
// stores numbers in the array
int[] numbers = new int[COUNT];
for(int index=0 ; index < COUNT; index++)
numbers[index] = Integer.parseInt(infile.readLine().trim());
infile.close();
Any help is appreciated!

What was suggested is this -
prior to this line ...
int[] numbers = new int[COUNT];insert these lines ...
file = new FileReader("numbers.txt");
infile = new BufferedReader(file);An alternative solution, one which reads the file only once, is to do it this way ...
1. read the numbers and put them into a List (either ArrayList or Vector)
2. instantiate the array based on the size of List (list.size())
3. populate the array from the list

Help with displaying integer values

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