For object relational database, the starting point could be the classes or the ER diagram. Still I have doubts as to how you can map variable length to table column field length. For example if i declare an int then I am not stating its length. How it could be resolved?
I'm working on an old site that we have, I'm adding a couple dropdowns to our forms.With a connection to our database I can pull in values for selBaseCurr, But it's not pulling any values into the second dropdown for selTargetCurr...Am I missing something in the while loop?
I have written my whole java code in netbeans IDE and create database in MYSQL work bench and connected java Gui with this DBMS through requried driver.when i run this program from Netbeans IDE , my program successfully access the data from DBMS. But when i created this java gui exe file its not working and not accessing data from DBMS, and each times gives exception "Driver not found ".if there is no driver loaded in this program how this file is working when i run this file from netbeans .
I am developing an application to share my client screen with server, it is working well on swing. But i want to develop as web application, i am trying to using applet. But i am facing the fallowing problem..,
1) The Applet screen also open and project also running well on server mechine. But unable to see the client screen on the server.
2) The problem may be to display the JDesktopPane or JInternalFrame.
My working Server Code extends withe JFrame..Java Code:
This program allows the user to select one of each different type of skateboard/accessories items. Then it allows the user to select as many misc items as he or she chooses. The program works fine for the single choices, but I cannot solve the latter part. I have a get method in the misc class that is trying to pull out any selection or selections that were made by the user, but it simply does nothing...
Here's my program, I have four panel classes for each skateboard type, and then I have one class that takes care of adding each panel to the content pane, and calculating the total cost of the item.
Decks Panel Class:
import java.awt.event.*; import javax.swing.*; // The DecksPanel class allows the user to selects a specific type of skateboard public class DecksPanel extends JPanel
However, whenever I run the method, the element that should go last, Zachary, in this case, ends up getting moved to the front for some reason. I'm not sure why.
I tried changing what the first element was initialized to, to the variable i as that would logically work as well, but it ends up missing the first element in the list.
Java Code:
public static void selectionStringAscendingSort (String[] words){ int i, j, first; String temp; for ( i = 1; i < words.length; i++ ) { first = 0; //initialize to subscript of first element for(j = i; j < words.length; j ++){ //locate smallest element between positions 1 and i. if( words[ j ].compareTo(words[ first ]) <0 ) first = j; } temp = words[ first ]; //swap smallest found with element in position i. words[ first ] = words[ i ]; words[ i ] = temp; System.out.println(Arrays.toString(words)); } System.out.println(Arrays.toString(words)); } mh_sh_highlight_all('java');
I'm trying to run a simple code which is to just print out "Hello World", but whenever I run it, a message appears that reads: "Select a way to run Project_1(Which is the Java Project)"
The selections for it are: Java Applet and Java Application.Whenever I click Java Applet it reads: Selection does not contain an applet.When I click Java Application: Selection does not contain a main type.Here is the code which I believe is correct:
package packag_1; public class Num_1 { public static void main(String args){ System.out.println("Hello World"); } }
I 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.
I am trying to write a program that graphically displays a selection sort. It needs to sort bars of various heights, and the bars heights are generated from an array of random integers. The program needs to show the bars swapping as they are being sorted, I am having trouble getting the bars to draw, it needs to look like a bar graph. Here is my code thus far (not counting my boiler plate):
import java.util.*; import java.awt.event.*; import javax.swing.*; import javax.swing.Timer; import java.awt.*; import java.util.Random; public class SelectionSortPanel extends JPanel
[Code] ....
Also right now it is giving an error from the compareTo method?
Mike Smith with a customer id of 100 has an account number of 1000 and a balance of $5,000.00 Hank Jones with a customer id of 101 has an account number of 1001 and a balance of $45,000.00 Sam Overstreet with a customer id of 102 has an account number of 1002 and a balance of $45,000.00 Hank Jones with a customer id of 101 has an account number of 1003 and a balance of $48,000.00 and so on .....
I am trying to do a selection sort by the account holders last name. I understand how to do if the Arraylist holds integers, but my arraylist holds multiple fields. I am not allowed to use collections as this is a homework assignment.
here is the Account Class
public class Account implements Comparable<Account> { private int acctNum; private double balance; private Customer cust; // note we are putting a Customer object in the Account clas private static int nextAcct = 1000;// used to keep track of the next available account number
This is a lab for one of my CS classes, and the assignment is to create a randomly filled array (values 10-100) and use these values as the height of an array of rectangles (essentially a bar graph)that will be drawn on a page. After that's done, the code should use the selection sort method to sort the bars least to greatest, being repainted as it's sorted.
I'm receiving no errors, the original draws just fine, and the code sorts the first position and then...it just hangs. Like it's in an infinite loop but I have all of the modifiers in place (I think. I've been staring at this code for three days straight and I don't think I really see it anymore). I've tried talking to my professor and I get that her private life is really busy right now, but she just keeps blowing me off and I don't know what to do. Anyway, done with back story and whining so here's the code.
Rectangle class: import java.awt.*; import javax.swing.*; import java.awt.event.*; public class Rectangle
I cannot use menu selection 4 5 6 7 8 9 10 ... Why NO_EXIT has been declared and used in defining the contents of the map array, rather than just directly using the value 99999 in the map array definition
I don't understand map[][], objectName[] and objectLocation[]
package Assignment; import java.util.Scanner; public class GameWorld { // the map array holds details on which paths lead to which other rooms. NO_EXIT indicates no valid exit. // each element holds the details of all paths leading out from a single-room in the order n ,e, s, w, ne, se, sw, nw private final int NO_EXIT = 99999; // indicates that there is no exit in that direction private int map[][] ={{NO_EXIT,NO_EXIT,NO_EXIT,1},{2,0,NO_EXIT,NO_EXIT},{NO_EXIT,3,1,NO_EXIT},{NO_EXIT,NO_EXIT,NO_EXIT,2}};
I have a question about selection sort. If I had an array of numbers, 1 2 3 4 100 0, and used the selection sort method (below) on the array,would the 0 slowly work it's way down to the end?
I'm making a simple game where there's a 10x10 grid and you can move around a selection box and you can move around. I've been trying to make the green selection box to move around but it won't move! I only have right movement in the code but it won't work so far. Here are the classes that have to do greatly with each other.
I have a ListView with ListCells that are complicated things containing other nodes. I want to turn of ListView selection behavior (so not allow selections) without turning of events to the ListCell nodes in the ListView.
I have a Master/Detail application with a TreeView as Master Selection. I need to inhibit leaving a page if the contents are "invalid". How can I do that?
I tried to force the page again in a ChangeListener, but that doesn't work well, not even using Platform.runlater().
I have a hierarchical data structure (Machine, Component, Measurement, Fault are classes) displayed in a TreeViewer. I have added SelectionChanged and DoubleClick listeners, but can't find a way to get to the data stored in the selected instance of the data structure class. For example, the selection is a Measurement which has a String name field. I can see the data in the Element in Debug-Variables, but I can't find any getters to access it. I tried casting the selection as a Measurement but it is an ISelection, or TreeSelection class and it won't accept the cast.
It seems there should be get methods to access the data in the selection, but there aren't, so I'm must be missing something fundamental.
I have a jsf form which has a drop down. When I select any value in drop down it shows related details. When I use chrome browser, and I press back space key it comes back to the page, it keeps the value selected which was selected earlier, but in the firefox, IE it keeps the zero index selected. The same code is not working for chrome browser.
I would like the zero index to be selected in the drop down in previous page in chrome browser also when back space key is pressed...
I want java coding for roulette wheel selection in genetic algorithm with some explanation. I can't understand the algorithm clearly to implement in my project ...
/** * Use selection sort to sort the tracks by name. Return a new, sorted ArrayList of tracks. * * @return an ArrayList containing the tracks sorted by name, or null if no tracks exist */ public ArrayList<Track> getTracksSortedByName() { // YOUR CODE HERE if(tracks == null) return tracks;
[Code] ....
Here are my 2 issues (there are 2 lines with compiler errors): I feel like I understand selection sort and binary search, but am not sure how to apply it to the more abstract idea of a Track ArrayList (hence the 2 compiler errors). What should I use to make it work. Lastly, I'm very uncomfortable with recursion, so my guess is there is also probably some logical issue with it in the getTracksSortedByName method.
I am trying to upload the text file in specific location in my disk but when I open selection window it displays all type of files while it should display the files only having .txt extensions
I am writing the code below,
<%@page import="org.apache.commons.fileupload.*,java.util.*,java.io.*"%> <!DOCTYPE HTML> <html> <head> </head> <body> <% // JSP to handle uploading // Create a new file upload handler
I know it is possible to do this using the Array class but I don't want to use that. I am trying to use selection or bubble sort but I believe selection is what I want. This program asks the user to input 2 arrays with 10 integers each, sorts them from smallest to largest, then states whether they are the same or not. Comparing the two arrays.
import java.util.Scanner; public class SetDifference { public static void main (String args[]) { Scanner sc = new Scanner (System.in); int array1[] = new int[10]; int array2[] = new int[10];
