Simple question on Strings

Is there a cleaner (and/or easier) way of adding a string value into another string? ie:
String myString = "How You?";
int i = myString.indexOf(" ");
String a = myString.substring(0,i); //should equal "How"
String b = myString.substring(i,myString.length()); //should equal " You?"
String c = a + " Are" + c; //should equal "How Are You?"

Sounds good to me.
Although in this particular example you could have done either:String c = myString.replaceAll(" ", " Are "); // (1.4+)-or-String c = myString.replace(" ", " Are "); // (1.5+)Also there are the StringBuffer or StringBuilder (1.5+) classes which have an insert(int,String) method.
Regards

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Simple question - compare Strings with SSIS expression language

SSIS variables - strOne = YES, strTwo = YES. I want to compare strings using ssis expression language (ie inside a variable's expression box, constraint of task flow arrow etc).
Will @strOne == @strTwo be true ? I hope its not like programming languages where you need to do
@strOne.Equals(@strTwo) instead of ==. Also is @strOne == "YES" true ?

([User::strOne] == [User::Strtwo] ? True : False)
The third variable created should be of type boolean if you're using above expression. if its of type int return 0 and 1 instead of False and true
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

A simple Question about % in CR Chart!

Hi, I have another simple question.
When i use SQL to storage data and wanna Crystal Report to display the data in chart using %
which data type should i use?
float or string?
and I found when i use 0.12 as 12% in database , It could not display in Crystal Report line chart normally.
What should I do??
Please Help!!!
Thank you VERY MUCH!!!

If you have the datatype as string from your database then try adding the string field as a summary field in chart and select maximum instead of count and if you have them in number format then you can directly select the percentage in chart.
Regards,
Raghavendra

Simple question about JAVA path

Hi. I have a simple question , but I spent several hours trying to find an answer.
How do I know the location of the java executable which is used by Concurrent Manager.
I already know that running which java under application user will not give me the correct answer

Maybe you can try like this:
     public String getPath(){
          Class cls=getClass();
          String className=cls.getName();
          String packageName=cls.getPackage().getName();
          System.out.println(className);
          System.out.println(packageName);
          String newClassName=className.replaceAll("\\.", "/");
          String resouceName=newClassName+".class";
          System.out.println(resouceName);
          URL url;
          url=cls.getClassLoader().getResource(resouceName);
          String path="";
          path=url.getFile();
          return path;
     }

A very very very simple question

Hi guys,
I have a very simple question and standard but I cant find anywhere...
I have two dateTime variables, i need to calculate difference between this dates in days, thats it.
I tried all functions and tried without success a Java Embed task but I couldnt retrieve this objects as java.util.Date so I couldnt calculate exactly the difference in days like this pure java code:
(dataVencimento.getTime() - dataReferencia.getTime()) / 86400000L)
can you help me this?

Hi Jose
Just see if these alternate approaches works. I know there may be lot like this and you may be lucky to find out simple out of box solution itself. If you want to solve this issue and move ahead, gives these approaches a shot.
1. Create a very simple standalone WebService that takes 2 input date elements (can be of Date type or String type. If string type, convert to date in your java code). Create a simple operation like getDaysBetween(firstDate, secondDate). In the generated webservice impl class, use the java code apis (refer earlier link for usage), and get the difference. Return this value. NOW, invoke this WebService in your BPEL Process, and pass your 2 inputs (if the bpel payload elemetns are date object or string objects of date), and get output, and then use this output in your continuing bpel process.
2. This approach, I did a long back. When we insert any expression using XPath, in that editor window on bottom right side, we see many categories and for each category we see list of functions we can use, like for String, we can use concat etc. I vaguely remember reading somewhere, that we can add our own custom functions also in this section. So explore this direction and see if you can add your own function and then use that fucntion with your 2 input dates.
I have not given solution to your problem, but may be these directions can help you move ahead. Or something along these lines.
Thanks
Ravi Jegga

A very simple question..Very Urgent

HI,
I have a very simple question.I am able to set up the client authentication as well as server authentication. Now do i need to authenticate (both server as well as client auth.) for every request i send to the server on https...i think it should be like that it should authenticate only for the first time and for the next upcoming requests in same session should not require any server or client authentication.. i think as it happens in browsers..
what is the fact actually??..can somebody put some light...right now in my case it is authenticating for every requests..
This is what i have done..
/****constructor part********/
// and tm are arrays of keymanagers and trustmanagers for client keystore and truststore
sslContext.init(km, tm, null);
HttpsURLConnection.setDefaultSSLSocketFactory(ssf);
HttpsURLConnection.setDefaultHostnameVerifier(new MYHostNameVerifier());
/****Method to send the request and response*********/
urlConn = (HttpsURLConnection)url.openConnection();
urlConn.setDoInput(true);
urlConn.setDoOutput(true);
OutputStream os = urlConn.getOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(os);
oos.writeObject(someobject);
oos.flush();
InputStream is1 = urlConn.getInputStream();
ObjectInputStream ois = new ObjectInputStream(is1);
SomeObject retObj = null;
retObj = (SomeObject)ois.readObject();
ois.close();
System.out.println("Get String>>>>> "+retObj.getString());
I am creating the object of this class..and calling the method again and again for sending requests and response..so i think handshake everytime i call the method...what i want is that handshake should happen for the first time and for the next requests no handshake or certificates should be checked or processed..
is it possible ..how..what i need to do for that..
please help me in this..
Akhil Nagpal

Hi,
how could I achieve SSL Session Resumption using HttpsURLConnection.
Thanks.

This is a very simple question,but I don't know.Please me.Thank you!

I am a Chinese student in a university.I have a very simple question to ask.
I have writed a EJB module,and I have deployed to Weblogic8.1 successfully.
1.Now I want to write a client program.Is it necessary that the client program is packaged in the EJB package.For example ,the EJB package is Beans,is "package Beans " or "import Beans.*" necessary in my client program.
2.If I only know the EJB interfaces,that means the EJB module is writed by other programer.I want to know how I can write the client program.How can I call EJB module's method writed by other programer.Could you give me a simple example?
Thank you very much.

I have writed a EJB module,and I have deployed to
Weblogic8.1 successfully.:-)
1.Now I want to write a client program.Is it
necessary that the client program is packaged in the
EJB package.For example ,the EJB package is Beans,is
"package Beans " or "import Beans.*" necessary in my
client program.You need not package your client with the EJB. It can be a JSP/servlet or a stand-alone application.
2.If I only know the EJB interfaces,that means the
EJB module is writed by other programer.I want to
know how I can write the client program.How can I
call EJB module's method writed by other
programer.Could you give me a simple example?
import java.util.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import examples.*;
class TestEJBHello {
    public static void main(String[] args) {
        Context context   = null;
        Object object     = null;
        // Hashtable for environment properties.
        Hashtable env = new Hashtable();
        env.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
        env.put(Context.PROVIDER_URL, "t3://localhost:7001");
        HelloHome home            = null;
        HelloWorld hello          = null;
        try {
            context     = new InitialContext(env);
            object      = context.lookup("HelloWorldTest");
            System.out.println(" JNDI Looked up >>> " +object);
            home        = (HelloHome)PortableRemoteObject.narrow(object, HelloHome.class);
            hello       = home.create();
            System.out.println(hello.hello());
        } catch(Exception e) {
            e.printStackTrace();
        } finally {
            close(context);        // Closes the initial context.
    private static void close(Context context) {
        try {
            context.close();
            System.out.println("*** Context closed. ***");
        } catch (NamingException namingException) {
            namingException.printStackTrace();
        } catch(Exception exception) {
            exception.printStackTrace();
}Here's a sample client app code I use for a HelloWorld EJB. You need to have a EJB client JAR containing the home and remote interfaces in the classpath during compile time and runtime.
x

Reading Files (simple question)

I'm doing some homework (and no, I'm not just looking for a handout answer, I just need a simple question answered) and I was wondering about how to read a word and evaluate if the word is the same as another word. I want to do this from a .txt file using the Scanner. I know I have to read the file and use while(ifp.hasNext()) but how do I evaluate it word by word? If there's anything else you need or if I'm asking the wrong question, let me know.

Is there any other way to read through a file other than nextLine? I know there's probably a simpler answer, but the only way I could think of doing it is storing the next line as a String and trying to find the specified word in the string. Not only am I not sure how to do that, I imagine there's a better way. Should I be evaluating it a different way?
Edit: I was looking at the javadoc on the Scanner class and I saw the findInLine method. We definitely didn't use this in our class, but is that what I should use?
Edited by: Mikola7 on Nov 5, 2007 4:14 PM
Edited by: Mikola7 on Nov 5, 2007 4:16 PM

JComboBox simple question

I think is a very simple question, I ve got a JComBox with an array of Strings. Something like this:
JPanel myPanel;
JComBox box;
String levels[]={"Level 1","Level 2","Level 3","Level 4","Level 5"};
box = new JComboBox (levels);
myPanel.add(box);
Ok. My question is: How can I let just the level 1 enable at first, or how can I enable or disable just one level of the JCombox, like level 1 and 2 enable but level 3, 4 and 5 disable.
Thanks a lot!! Hope someone helps me!!

I don't think this is possible with a JComboBox. I believe it is with a JMenu and JMenuItems.
You could only display valid options by adding/deleting them. Or you could handle it in the listener code. ie if they select an invalid option do nothing. This would require you keeping track of which options are valid elsewhere in the code.

WD Abap - simple question (required field)

hi folks,
quite a simple question i guess.
i have a field marked as required (gets a red asteriks). In the actions i have "Standard" so they should have to do all the validations, but i still can execute the action, i did not find a docu for the behaviour of the "required" features? i thought like in r/3 sapgui appl. a default error messages will be shown?
any ideas?
kind regards,
oliver

Oliver,
I guess there is no difference between WD ABAP and WD Java in this regard, so I will answer from WD Java developer point:
"Required" actually means visual hint to user that input is mandatory. What "mandatory" actually means is application-specific.
For example, in Java string could be either null, or empty, or contains only spaces, or rest. What is mandatory here? Not null? Not empty? Something besides spaces? Ok, even worth, let us assume that we are entering some number (material, order). So string with only zeroes is also "empty".
Hence WD does not handle "required" flag itself, this is left for application developer.
Certainly, some data type constraints like minimal text length, or minimal numeric value may be treated as "required", and here WD works well.
VS

Help with simple question.......

This is a simple question but i can't seem to figure it out.
For example i am using this code...
feel free to run this code...
When you run this you see the scrollbars with the Swing look (Bars look so nice)...
I am using this same type of code in my other project with JBuilder 7 and I am getting the plain look of the scrollbars.
Any suggestions will be greatly appreciated..
=======================================================
import javax.swing.JTable;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.JFrame;
import java.awt.*;
import java.awt.event.*;
public class SimpleTableDemo extends JFrame {
private boolean DEBUG = true;
public SimpleTableDemo() {
super("SimpleTableDemo");
Object[][] data = {
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Chasing toddlers", new Integer(2), new Boolean(false)},
{"Mark", "Andrews",
"Speed reading", new Integer(20), new Boolean(true)},
{"Angela", "Lih",
"Teaching high school", new Integer(4), new Boolean(false)}
String[] columnNames = {"First Name",
"Last Name",
"Sport",
"# of Years",
"Vegetarian"};
final JTable table = new JTable(data, columnNames);
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
if (DEBUG) {
table.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
printDebugData(table);
//Create the scroll pane and add the table to it.
JScrollPane scrollPane = new JScrollPane(table);
//Add the scroll pane to this window.
getContentPane().add(scrollPane, BorderLayout.CENTER);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
private void printDebugData(JTable table) {
int numRows = table.getRowCount();
int numCols = table.getColumnCount();
javax.swing.table.TableModel model = table.getModel();
System.out.println("Value of data: ");
for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + model.getValueAt(i, j));
System.out.println();
System.out.println("--------------------------");
public static void main(String[] args) {
SimpleTableDemo frame = new SimpleTableDemo();
frame.pack();
frame.setVisible(true);

any help will get DUKE $$$$$$$$$$$$$$$$

Simple question on the main method

Hello,
I have a very simple question and hope that somebody 'out there' can help me on this topic:
I just want to pass some Strings to the main method, which means that I want to do sth. like this:
java ProgramXY parameter1, parameter2
I thought it was possible to access these parameters in my main method like the following:
public static void main(String argv[]) {
System.out.println(argv[0]);
System.out.println(argv[1]);
But it does not work. So what do I do wrong ? Thank you for your help,
Findus

That should actually work - though you don't use the comma - just spaces. I don't think a comma would screw things up though - it would just become part of parameter 1.
Of course, you still want to check argv.length to make sure you don't try reading an array member that doesn't exist.
What are you seeing if you're not seeing your parameters?
If you're not putting enough parameters, it MIGHT be possible that you're getting an ArrayIndexOutOfBounds exception before the first System.out.println's are flushed to the screen - unsure though.

A simple question please help.

Hi
I have 2 textfields and a button. I want to input a number( diameter) in the first textfield ( inputField) and by clicking on the button (myButton), I want to get the result (circonference) in the second textfield ( inputField1). diameter*3.14. I know it is a simple question, but it comes from a very simple mind. So have mercy on me.
import flash.display.Sprite;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import flash.text.TextFormatAlign;
import flash.events.MouseEvent;
var inputField:TextField = new TextField();
var myFormat:TextFormat = new TextFormat();
myFormat.size = 44;
inputField.defaultTextFormat = myFormat;
inputField.restrict = "0-9";
inputField.maxChars = 6;
inputField.multiline = false;
inputField.textColor = 0x000000;
inputField.border = true;
inputField.width = 150;
inputField.height = 50;
inputField.x = 75;
inputField.y = 50;
inputField.borderColor = 0xFF0000;
inputField.type = "input";
addChild(inputField);
var inputField1:TextField = new TextField();
var myFormat1:TextFormat = new TextFormat();
myFormat1.size = 44;
inputField1.defaultTextFormat = myFormat;
inputField1.maxChars = 1;
inputField1.multiline = false;
inputField1.textColor = 0x000000;
inputField1.border = true;
inputField1.width = 150;
inputField1.height = 50;
inputField1.x = 275;
inputField1.y = 50;
inputField1.borderColor = 0xFF0000;
addChild(inputField1);
myButton.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_2);
function fl_MouseClickHandler_2(event:MouseEvent):void
trace("Mouse clicked");

use:
import flash.display.Sprite;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import flash.text.TextFormatAlign;
import flash.events.MouseEvent;
var inputField:TextField = new TextField();
var myFormat:TextFormat = new TextFormat();
myFormat.size = 44;
inputField.defaultTextFormat = myFormat;
inputField.restrict = "0-9";
inputField.maxChars = 6;
inputField.multiline = false;
inputField.textColor = 0x000000;
inputField.border = true;
inputField.width = 150;
inputField.height = 50;
inputField.x = 75;
inputField.y = 50;
inputField.borderColor = 0xFF0000;
inputField.type = "input";
addChild(inputField);
var inputField1:TextField = new TextField();
var myFormat1:TextFormat = new TextFormat();
myFormat1.size = 44;
inputField1.defaultTextFormat = myFormat;
inputField1.maxChars = 1;
inputField1.multiline = false;
inputField1.textColor = 0x000000;
inputField1.border = true;
inputField1.width = 150;
inputField1.height = 50;
inputField1.x = 275;
inputField1.y = 50;
inputField1.borderColor = 0xFF0000;
addChild(inputField1);
myButton.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_2);
function fl_MouseClickHandler_2(event:MouseEvent):void
inputField1.text=String(Math.PI*Number(inputField.text));

Simple question - How to find date

Hi Experts,
I have a simple question on date. Suppose today is Jan 4, 2010. I have to find out Jan 1, 2007 using Java code.
I have used following code. This code will work for 2010 and 2011 properly. However it won't work properly after Feb 28, 2012. Please see "dayInMillis*1096 " portion of code. Here 365365366 = 1096.
How I can avoid this hard coding. Do we have any simple way to get Jan 1, 2007 even without using following code.
     Calendar calendar = Calendar.getInstance();
     int lastDate = calendar.getActualMaximum(Calendar.DATE);
     int firstDate = calendar.getActualMinimum(Calendar.DATE);
     int todayDate = calendar.get(Calendar.DATE);
     int dayofyear = calendar.get(Calendar.DAY_OF_YEAR);
     java.sql.Date currentdate = new java.sql.Date(System.currentTimeMillis());
     long dayInMillis = 1000 * 60 * 60 *24; //1 day
     wdContext.currentContextElement().setFromDate(new Date(System.currentTimeMillis() - dayInMillis*1096 - ((dayofyear-1)*dayInMillis)));
Please help.
Regards,
Gary

Hi Gary,
I am not pretty much clear with your question, whatever i have understood, i have found a way to get the previous date given the current date.
Below is the code for the same.
                       Calendar now = Calendar.getInstance();//Jan 4, 2010
       String nowDateStr = DateFormat.getDateInstance().format(now.getTime());
       System.out.println("date now : " +nowDateStr);
       now.add(Calendar.YEAR, -3);//2007
       now.add(Calendar.DATE, -3);//1st
       now.add(Calendar.MONTH, 0);//No change in month, Jan.
       String changedDateStr = DateFormat.getDateInstance().format(now.getTime());
       System.out.println("date changed : " +changedDateStr);

Current Year and current month?simple question

How can i get four Digit current Year and two digit current month. So if is march it should get me as 03 and the Year as 2002. Please do help me, is a simple question isn't it ?. Thanks for your earliest response.
Thank you.

i have a directory structre of the format
REPTS2000209/E200209-98000001
in which 2002 is current YEAR
09 is current month
and 9800001 is the code i would submit(list box) from a form
so what i need is a program that can generate the above path and open that particular PDF file
so basically E200209-98000001.pdf is the PDF file.
i am submitting it from JSP page. PLEASE HELP ME how can i program.

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