I wish to use the Request-Reply JMS pattern. The only part over here I am unsure of is the Temporary Queue and how to reuse it.
This is because the thread that creates the request must be able to map to a distinct reply and return back a response.
I am not sure how the reuse of a temporary queue fits this picture.
How to map a request URL to a url pattern in deployment descriptor. I got all the answers right, but I am not sure if the thought process is correct.
<servlet>
<servlet-name>One</servlet-name>
<servlet-class>foo.DeployTestOne</servlet-class>
</servlet>
<servlet-mapping>
[Code] .....
1) [URL] ....
Container choice: DeployTestOne (matched the *.do extension pattern)
Exact match check: Is there a URL pattern in DD which is exactly = /MapTest/blue.do ? NO.
Directory match check: Is there any URL pattern in DD for directory /MapTest ? NO.
Extension match: Is there a pattern in DD for files with extension .do ? Yes !
Select DeployTestOne !
Question - When doing an Exact match check, does the container look for blue.do in DD or does it look for /MapTest/blue.do ?
2) [URL] ....
Container choice: DeployTestThree (matched the /fooStuff/* directory pattern)
Exact match check: Is there a URL pattern in DD which is exactly = /MapTest/fooStuff/bar/blue.do ? NO.
Directory match check: Is there any URL pattern in DD for directory /MapTest/fooStuff/bar ? Yes !
Go for the url pattern for longest pat, that is, /fooStuff/*
Question - When doing the directory match check, does the Container look for /MapTest/fooStuff/bar/ or just /fooStuff/bar ?
I am implementing a SSO using NTLM. The steps are:
Step1: Cliente ask for resource
Step2: Server ask for NTLM negotiation
Step 3: Client sends to the server NTLM type 1 message
Step4: Server sends back to the client NTLM type 2 message
Step5: Client sends type 3 message.
The problem I have is in Step 5, when the browser receives the type 2 message, it just stops displaying "IE cannot display the webpage" and sends nothing to the server.
I have checked that I am sending a correctly the type 2 message, using a sniffer I can see the NTLM type 2 message (challenge) and it is well formed (I have test also different flags configuration). I have test also with Firefox and the same behaviour. Server and client are in the same Domain.
I am under the assumption that In the return statement of getReciprocal() method(of the following code), a temporary Number object is created to hold the result of the calculation.
My question is, Number is an abstract class and we are only able to create reference of an abstract class not an object. But then how a temp Number object is created and returned?
class Gen<T extends Number>{
T ob;
Gen(T ob){
this.ob = ob;
}
Number getReciprocal(){ // Number is abstract class
[Code] .....
I need to activate the setting 'Keep temporary files on my computer' (Java control panel/general/settings) on about 150 Windows 7 PCs in a Samba3-Environment (which does not have GPOs). We are running Java Version 8 Update 45 (build 1.8.0_45-b14) on all of the PCs. Is there a way to change this setting with the command line, a registry entry or somehow else?
View Replies View RelatedI have the following questions:
1. Does a GET HTTP request contain a request body? If yes what is contained in it? Are the request headers also part of the request body?
2. Is it possible to send a byte array as part of the GET request in its body?
3. Is there a size limitation on the data that can be sent via a GET request?
Is it possible to define the same message driven bean as a listener to different queues?
The goal being to define different redelivery configuration for different kind of messages, but handle them all through a single deployment MDB for unity/entity purposes.
The other option is to have many MDBs targeted to the same source code.
I have created this program that outputs
1
12
123
1234
12345
123456
I tried looking up some ways to create spaces in between each number, but I failed miserably. Here is what I have right now.
public class Iterations {
public static void main(String[] args){
for(int i=1;i<=6;i++)
{
for(int j=1;j<=i;j++)
System.out.print(j);
[Code] ....
I want to know how to print this type of pattern when a name is given ???
Example:
name given TEJA
Capture.PNG
leaveQ method does not work..To see the other files related to these code click here:(Its a dropbox location) URL....Java Code:
public class CustomerQ {
private int MaxLength;
private int totalCustomers;//assuming #of customers served
int Qlength;
Customer cus;
LinkedList4Q cus4Q;
[code]....
Implement a priority queue based on a sorted linked list. The remove operation on the priority queue should remove the item with the smallest key.
View Replies View RelatedI am doing a bank queue simulator program which will figure what will happen in 100 minute where 0 to 2 customers comes every minute. 3 counters will handle these customers each counter will poll the customer after 3 minutes.my problem is queue.poll()is not working in counter method and it is adding null values to the queue in the same method. when i add while customers.isEmpty(); the program will not work i do not know why
package dataalgo;
import java.util.LinkedList;
import java.util.PriorityQueue;
import java.util.Queue;
import java.util.Random;
public class customer {
[code]....
implement Double Ended Queue?????
import java.util.*;
public class DoubleEndedQueueImplHW22 {
ArrayList<Integer> deque = new ArrayList<Integer>();
public void insertFront(int a){
System.out.println("adding at front: "+a);
deque.add(0,a);
System.out.println(deque);
[code]....
The following codes shows an implementation of an enqueue function of a FIFO immutable queue, and the output result shows the String "c".
I don't understand why since I expected it should be null.
The head and the tail of an ImmutableQueue Object are two separate queue, and each time I call the enqueue function, it just return a new object with a new tail, however, the head is not modified except the first two times I call the function.
Therefore, I expected head.next.next should be a null element, but the result is not like that.
public class ImmutableQueue<E> {
private int size =0;
public Queue<E> head;
public Queue<E> tail;
public ImmutableQueue(){}
private ImmutableQueue(Queue<E> hd, Queue<E> tl){
head=hd;
tail=tl;
[Code] ....
I am able to get Cpu speed using my GetProcessorSpeed method and It returns this output 1796. How can apply this pattern "#.##". I am trying something like this.
Format formatter=new DecimalFormat("#.##");
formatter.format(MainClass.GetProcessorSpeed());
label2.setText(formatter.toString());
I was reading head first java and the author told to read head first design pattern next.
View Replies View RelatedWhy the following string fails the test below:
@Pattern(regexp = "^[_a-zA-Z0-9-]+(.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(.[a-zA-Z0-9-]+)*.(([0-9]{1,3})|" +
"([a-zA-Z]{2,3})|(aero|coop|info|museum|name))$", message = "Not a well-formed email address")
I have code which validate code enter by user
the requirement say the maxlength=2 and minlength=1 and is a string
the user can enter code as follows
00
A1
HH
12
10
09
I have this Java Code:
public boolean isValidPattern(String s_value, String s_pattern) {
boolean flag = false;
if (Pattern.matches(s_pattern, s_value)) {
flag = true;
}
return flag;
[Code] ....
My problem is when user put
A1 AM geting error
So I'm studying for a test i have coming up on recursion so i was playing around with it. I ended up making a pattern of stars that look that such :
*
**
***
The code i had for that was
public void makePattern(int size){
if(size == 0){
System.out.println();
}
else if(size > 0){
System.out.print("*");
makePattern(size - 1);
}
}
I was wondering if i wanted to expand on this and make it do something like
*
**
***
**
*
What condition would i have to add i was struggling trying to figure it out...
I am in an intro programming class and we got assigned a problem for creating a super class with about a dozen sub classes for generating a random word(via WordGetter class) and then comparing that word to a variety of different patterns(like: does the word contain "re"). We were given the super class which looks like this...
public class Pattern {
public boolean matches(String text) {
return true;
}
public String toString() {
return "(TRUE)";
[code]...
and from this class, we have to write subclasses that override those three methods. I am struggling to understand inheritance and I am not really sure where to even start. Here is the instructions for the first sub class we need to write...
"CONTAINS" SUBCLASS
Constructor: The constructor accepts a String named ‘letters’.
Matches: This pattern matches any text that contains at least one occurrence of each ‘letter’.
toString: produces the text “(CONTAINS <LETTERS>)” where <LETTERS> is the ‘letters’ string.
getLetters(): this method must return letters.
equals(Object): careful on this one. Two Contains are equal if they have the same letters (order is not relevant).
(Example):
Pattern p = new Contains(“re”);
boolean f1 = p.matches(“renew”); // f1 is true
boolean f2 = p.matches(“zoo”); // f2 is false
String s = p.toString(); // s is “(CONTAINS re)”
boolean f3 = p.equals(new Contains(“er”)); // f3 is true.. really..
I'm trying to make a triangle which should look like this. But I cant seem o figure it out.
1
2 1
4 2 1
8 4 2 1
16 8 4 2 1
32 16 8 4 2 1
64 32 16 8 4 2 1
128 64 32 16 8 4 2 1
This is the code I have written so far.
public class TestProgram
{
public static void main(String[]args)
{
for (int columns=0; columns<=8; columns++)
{
for (int rows=columns; rows>=1; rows --)
{
System.out.print(rows+ " ");
}
System.out.println();
}
}
}
I'm having a hard time implementing a simple composition example in Java:
Java Code:
public class CompositionPattern {
public static void main(String[] args) {
Udp udp = new Udp();
Imap imap = new Imap();
udp.startService();
imap.startService();
[Code] ....
The above won't compile. It says "The method supportsMe() is undefined for the type Object". I understand that I stored parent as an Object. But in reality it is not simply Object, but a Udp object or Imap object. The point is to make Responder generic. I don't want to have to cast the Object to Udp or Imap. Any solutions so I can keep this generic?
I have heard about using patterns in core java.Is it possible?If yes, how?
View Replies View RelatedI need selecting which design pattern to use in my case.
I am creating a list of objects "items" to be presented in a list for the user to choose from, all objects have a title and a check box. Some objects have additional textbox for user input, some objects have additional image for illustration, and some objects have additional textbox and image as well.
I read and saw online videos but not sure if my selection "Factory Design Pattern" is the best match.
Model View Controller design pattern I completely understand then I was told about the observer controller pattern. After reading and reading I and watching video clips on youtube explaining it I have a question:
Isn't the actionListener the observer so to speak. It is firing whatever action it is told to do and dynamically updates the program to.
Example, I have a JButtons and a JTextArea. I press the button and it gives the current stock price of some stock, I press it again it refreshes. Sounds like an observer to me... Am i on the right track here?
The program I'm working on is supposed to read input from a file and using recursion, print the pattern of asterisks for each value until the value is either < 0 or > 25.For example, if the value was 4, the pattern would look like this
*
* *
* * *
* * * *
* * *
* *
*
The values are stored in a file entitled prog3.dat which looks like this
4
3
15
26
0
I've never used recursion before and haven't been able to find anything showing how it would work with this particular type of problem.Here is what I've been able to come up with so far, but I'm having problems still which I will show following the code.
import java.util.Scanner;
import java.io.*;
public class Program3 {
public static void main(String[] args) throws Exception {
int num = 0;
java.io.File file = new java.io.File("../instr/prog3.dat");
Scanner fin = new Scanner(file);
[code]...
It appears to be reading the file correctly, but is only printing the top half of the pattern. Also, like I said, I'm not very familiar with recursion, so am not sure if this is actually recursion?