How can I style my own nodes/controls doing this? Basically it amounts to asking how the selectors like ".column-header-background" are associated with sub-structures of my Java control/node objects. So suppose I have something like
.fancy-node .fred .label { ... }
How does JavaFX associate fancy-node and fred with something in my implementation of a Node/Control?
The idea is pretty simple; extend StackPane, add an active property, bind the visible and managed properties of the pane to the active property, and, whenever the active property is changed to true, iterate sibling nodes de-activating any siblings that are also of the type Card.
However, this doesn't work with Scene Builder. While trying to debug, I created an ExtStackPane:
import javafx.collections.ListChangeListener; import javafx.scene.Node; import javafx.scene.layout.StackPane; public class ExtStackPane extends StackPane { { getChildren().addListener((ListChangeListener<Node>) c -> { System.out.println("ExtStackPane children change: " + c.toString()); }); } }
All this does is log list change events. However, I was very surprised by the output when working in Scene Builder. I added both controls to Scene Builder and did the following:
0) Added an ExtStackPane 1) Added a Card to the ExtStackPane 2) Added another Card to the ExtStackPane 3) Added a Label to the first Card 4) Added a Label to the second Card 5) Changed the text of the first Label to Hello 6) Changed the text of the second Label to World 7) Set the first Card to active 8) Set the second Card to active
I get the following output:
1) ExtStackPane children change: { [Card@5b9067b3] added at 0 }
2) ExtStackPane children change: { [Card@6b6328bd] added at 0 } ExtStackPane children change: { [Card@6aca8cc5] added at 1 }
[Code] ....
This is what things look like in Scene Builder:
Does Scene Builder recreate the entire hierarchy every time I make a small change? Here's an application that does the same as the manual steps I performed in Scene Builder:
import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.stage.Stage; public class CardApplication extends Application {
[Code] ....
The output when running the above is:
1) ExtStackPane children change: { [Card@6dfaa767] added at 0 }
2) ExtStackPane children change: { [Card@6aa2c411] added at 1 }
[Code] ....
The behavior is obviously a lot different than when I'm working with the control in Scene Builder. What Scene Builder is doing to change the behavior of my Card control so much? Does my Card control break some rule(s) I'm not aware of?
public void add(int d){ listNode l = new listNode (d, null); l.next = first; first= l; } public list Sum2List (list l1, list l2){ //variables int sum;
[Code] .....
But I have a problem in my first listNode where it ll be pointing to null, thus in the sum2List method the program checks the while condition into false and doesn't go through the loop.
having trouble trying to understand the insertion and removal of Nodes.
I have to insert a new node at the end of the linked nodes, if i insert by terminal : 1, 2, 3. The printed nodes are going to be in the same order, 1,2, 3.
I have done the exercise, but it only prints the last node created and i dont know where its the problem. We did it before with "insert at the beginning", may be the problem is with the print() method in SimpleList.java, but i dont know how to print "backwards".
This is the code:
Node.java
public class Node { public int infoNodo; public Node next; } SimpleList.java public class SimpleList { private Node head;
I had a question about data structures. For the insert method of a linked list, the 'node' object is declared in the insert method. So doesn't the 'node' get destroyed as soon as the closing brace of the insert method is encountered? How do all the nodes continue to occupy memory?
import java.io.*; import java.util.ArrayList; public class SpiltList { private class node { int number; node next;
[code]....
I am using an ArrayList to make a list of nodes. I cannot seem to find documentation on how to call the nodes, just find how to get int and strings from a list.
Is it possible to find the number of paths between two nodes in a directed graph using an adjacency matrix? I know how to find all said paths of a given length by using matrix exponentiation, but I don't know how to find all the paths. The professor didn't note it in the assignment but I assume she meant all simple paths because this is a cyclic graph, so there's a potentially infinite number of paths.
I'm thinking I should use matrix exponentiation to find the number of paths of lengths 1 to n-1, where n is the number of nodes in the graph. Then add the number of paths for each length together. Would this work?
Implement a Las Vegas slot machine! The machine works as follows. First, it generates three random integers (use import java.lang.Math.*; then call Math.random()*7 to generate a random number between [a,b)) that are in the range of 0-7. Once the numbers are generated, the following rules are used to determine the prize:
- If all three numbers are equal to 7, you are winning $1,000, - If all three numbers are equal, but not equal to 7, you are winning $500, - If two of the numbers are equal to 7 and the third one is six, you are winning $400, - If two numbers are equal, you are winning $100, - Otherwise you are not winning anything.
And for that I wrote:
import java.lang.Math;
public class Assn1_2150130 { public static void main(String[] args) { // Generate three random signle-digit integar from 0-7. int n1 = (int)(Math.random()*7); int n2 = (int)(Math.random()*7); int n3 = (int)(Math.random()*7);
[code]...
But I just can't figure out a way to print out the "YOU WON NOTHING." independently.If I say that n1!=n2 && n2!=n3 && n3!=n1, and then write another line of println. It gives out the number as well as the "NOTHING".
//******************************************************************** // Demonstrates the existence of separate data space in multiple instantiations of a programmer-defined class. //********************************************************************
[code]....
Basically i'm trying to add one more "coin" to flip. My problem is that my if-else structure isn't working correctly here's what it looks like:
if (count1 < GOAL) if (count2 < GOAL) System.out.println("Coin 3 Wins!");
[Code] .....
It only works correctly when "coin2" wins.How would I modify my if else structure to get the output I am looking for?
Is it possible to map URL's with independent view dir structure? If so how?
My goal is to simply point an url to a specific view file:
i.e.
[URL] ....
to not/default/path/views/main/index.xhtml and www.myserver.com/application/admin/ to not/default/path/views/admin/index.xhtml
A couple solutions I found so far where:
Solution 1
PrettyFaces
I just didn't wanted to use a third party solution. This is my best solution so far.
Solution 2(a JSF solution):
navigation rule entries in the faces-config.xml file.
A bean is required, not a bad thing in above example but not great in combination with static navigation like:<h:commandButton action="index"/>
Solution 3 (another JSF solution)
Resource Library Contracts This forces me to work in the contracts file.
None of the solutions gave me a clear solution except prettyfaces.
Are there some elegant native JSF solutions ? Something flexible and reusable? Something like a mvc controller i used to use in php applications. In this controller I was able to add a template file in the constructor and an content file in specific function. Custom paths where no problem. I didn't want to use mvc nor the php language in this project.
I'm trying to fill a List<String>, named overlappedGrid, from another List<String>, named listGrid. I'm facing an exception:Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - unexpected type
required: variable found: value at arab2004_d.ProcessingLayer.printShape(Arab2004_D.j ava:101) at arab2004_d.Arab2004_D.main(Arab2004_D.java:30)
Java Result: 1
Here is my source code (the exception line is commented "here is the exception"):
I have the following code that supposed to perfrom sorting on the linked list using method sort in order usind node concept of Linked List but seems to give inlogic results. the following code tests only the values lower than the first value but i can't manage to sort the data higher than the first entered value;
/* * To change this template, choose Tools | Templates * and open the template in the editor. */
import java.util.*; public class ListNode<T extends Comparable> { ListNode<T> nextNode; T data; public ListNode(T item)
i am trying to assign unique values to nodes read from XML file.. eg: consider this XML file:
<breakfast_menu> <food> <name>Belgian Waffles</name> <price>$5.95</price> <description> ...Strong Belgian waffles...</description> <calories>650</calories>
[code]....
now assigning these nodes "a unique value" has to be done following the LSDX labelling pattern i.e:
To the document element we first give an “a”.As there is no parent node for the document element, we assign “0” at the front of that “a” . “0a” is the unique code for the document element (breakfast_menu). For the children nodes of “0a”, we continue with the next level of the XML tree which is “1” then the code of its parent node which is “a” and a concatenation “.” . We then add a letter “b” for the first child, letter “c” for the second child, “d” for the third child and so on.Unique codes for children nodes of “0a” shall be “1a.b”, “1a.c”, “1a.d”, etc.Hence foe the above given XML the mapping would look something like this:
0a breakfast_menu 1a.b food 2ab.b name 2ab.c price 2ab.d description 2ab.e calories 2ab.f chef 3abf.b chef1 3abf.c chef2 1a.c food 2ac.b name 2ac.c price 2ac.d description 2ac.e calories 2ac.f chef 3acf.b chef1 3acf.c chef2
For more samples about LSDX labelling : 1.) Section 3.1 LSDX Labelling on this link: [URL]
2.) Fig 3 on page 1189 on this link:[URL]
right now i am using SAX parser to read xml and get the nodes in their hierarchical order..now the problem is that i have to assign these specific value to their respective nodes using java.
What is better and easier approach for exchanging data (in my case list of objects) between servlets in different nodes in same cluster? I thought about RMI or just direct url servlet call. But it seems that I'm missing something here.
My problem is the following:
I have to create some kind of diagnostic storage for each cluster member. It will collect all information and errors during application work.
And If I need to check application status I do web request and it will show me that these servers (cluster members) are okay and that node has an issue.
-getting words from dictionary text file and inserting them into a hash table - DONE -getting words from a usertext file and inserting them into a red-black tree - STUCK -after that i need to see if there is nodes of words that dosen't exist in the dictionary and print if so
kinda like a spelling checker
OK so the main code that hold the reading and storing part of dictionary and inserting to hash table
I am doing an assignment in my Java class and I need to connect the nodes to make a 12 pointed star. I have already drawn out the star and figured out which nodes to connect together. The only thing I cannot get is to show all of the nodes in the order they connect. I can only get the first 3 nodes to show up. I need it to wrap around and basically keep adding 5 to the last node until all numbers 0-11 are used.
public class StarWinding { public static void main(String[] args) { for (int i = 0 ; i < 12; i+=5) { System.out.print(i + " "); } } }
how to structure simple programs (i.e. one-method algorithms for a simple purpose). There are a few different ways that I have been doing it, but I want to be consistent. Should I put both the one-method algorithm (e.g. a factorial function) and the main method that executes the algorithm into the same class and then export it to an executable .jar file for use? Or should I create one class for the algorithm and another for the main method that executes the algorithm? In addition, is there any reason that I should out these classes in a package before I export it?
As another similar question, if I have constructed two distinct classes with two separate purposes, and they are both used in the construction of a single program, then would it be best to just put the main method in a third, separate class or should I put it in one of the two classes?
I am new to jsf i have been given a task to create a tree structure in jsf but cant use richfaces and primefaces. I need a complete project for reference as i am to totally new to this.
TL,DR: observe the nodes just below, that is the data each node in the link list contains. How do I iterate through the entire list to reach the last element (H), so I can add an element right after it?
So I have 4 nodes doubly linked with two dummy nodes for head and tail:
Ok, so since the list only contains 8 elements that are not null, its size is actually 8 correct? So now lets say I have an add method that has
add(E item) and inserts the item at the end of the list. So I can get to the last node with tail.previous(), but then how do I iterate to the end so I can add the item after the last item in the list (H). I guess I don't know how you only access one nodes data when that data is an array with empty spaces.
Here is the entire Node code:
Also, I can't just iterate through the whole thing because I am not supposed to. I am supposed to just find the right node and iterate through that only.how to maneuver around a linked list containing nodes where each node contains an array.
/** * Node class that makes up a DoublingList. Feel free to add methods / * constructors / variables you might find useful in here. */ public class Node<E> {
/** * The node that comes after this one in the list
I am trying to Implement a method matchBracket(String exp), which should take a String expression consisting of only symbols (,[,{,<,),],},> , and checks if the brackets in the expression are matching using stack data structure.
I know how the methods of stack class like push,pop,peek are for however how to do the checking for opening and closing brackets iteratively ?
public static void matchBracket(String str){ // creating a stack of character at first Stack <Character> stack = new Stack<Character>() ; // starting loop to scan the expression below inside main method for(int i = 0; i<str.length(); i++){
[Code] ....
/**Expected Output: *The parentheses are not matching *The parentheses are matching
My assignment is to design a simple GUI calculator using the stack data structure to perform additions, subtractions, multiplications and divisions. But i having error while i press the action there.
import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; import java.util.Stack; public class JCalculator implements ActionListener {
