Compare Selected Items From Two Arrays
Nov 16, 2014
I need to somehow compare the random color chosen from the color array and the random name selected from the name array. I know how to compare to entire arrays of the same type such as integers. How to go about this with two different arrays. I thought maybe I could parse the color array selection to a string but had no luck with that either.
Problem #1: Design and implement an Applet that plays a simple game to teach a child to read. The game displays a picture on the left hand side of the Applet and a word on the right hand side. Below the pictures are two buttons for the child to click--one if the word matches the picture, the second of the word doesn't match the picture. Display an error message if the child is incorrect (or play a sound). Display (or play a sound) display words of encouragement if the child chooses correctly. Add a loop so the child can keep playing.
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.util.Random;
[Code] ....
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Jul 16, 2014
I am working on a web application for store file maintenance. Need to add a new Check Box "Activate Selected Menu items" on the page.
what code i should write to add a Check Box.
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Oct 19, 2014
I want to synchronize a List<String> with the selected items of a ListView. In the real project, I want to synchronize the selected items of a TreeView and the selected images of a galery (custom control).
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.collections.FXCollections;
[Code] ....
In most cases, the program works as expected but sometimes there are some issues.
- For example, when I launch the application and select all the items with Ctrl-A, the event { [One, Two, Three] added at 0, } is fired so the list of strings contains incorrectly 4 elements [One, Two, Three, One].
- Another example, when selecting all the items (with Shift+End), two events are fired { [One] removed at 0, } and { [One, Two, Three] added at 0, }, that's correct. But when I remove the last element with Shift-Up, 3 events are fired { [Two] removed at 1, }, { [Three] removed at 2, } and { [Two] added at 1, } and an exception is thrown:
java.lang.IndexOutOfBoundsException: toIndex = 3
at java.util.ArrayList.subListRangeCheck(ArrayList.java:1004)
at java.util.ArrayList.subList(ArrayList.java:996)
at com.sun.javafx.binding.ContentBinding$ListContentBinding.onChanged(ContentBinding.java:111)
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Oct 21, 2014
I am working on an assignment that is to simulate the relationship between a cache and main memory. Basically it is supposed to be a 16 slot cache and we are to have 500 for main memory. I need it to compare the corresponding index for both arrays, then go through then repeat the cache array and compare it to the next 16 of main memory. It is to simulate an direct mapped cache. How to compare two arrays from separate loops.
public class MainMemory {
private short mainMem[] = new short[200];
public void assign(){
short i;
for ( i = 0; i < mainMem.length; i ++){
mainMem[i] = i;
[Code] .....
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Apr 8, 2015
I am working on a class that sorts and matches items in a collection of arrays. In the end, elements common to all 3 arrays should be printed. The idea is that as the first array is compared to the second it stores the matched items in tempArray. When all items are compared the tempArray should overwrite the checked array, and the process continues until all arrays are checked. I have set all the checking in a do loop that should run while the value is <= to the array length. This allows all items in the reference array to be checked. I get an index out of bounds message but not where I would expect it. I have tried varying the condition in the do while loop in the match method, but it did not change the result. There may be other issues I have not addressed with solving the algorithm, but this one has me stumped and I am not able to progress.
package testing;
public class TestMatchMain {
public static void main(String[] args) {
Comparable[] innerCollection0 = {1,2,3,4,5};
Comparable[] innerCollection1 = {1,1,5,6,7};
[Code] .....
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Jun 28, 2014
I mainly would like to know is a int[4][4] or a int [4*4] is more efficient to use. Which takes more storage? Which requires more to process? that kind of stuff.
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Apr 29, 2014
It isn't messing up it just keeps making me make my arraylist static and i'm not sure why.
public class driver
{
private static ArrayList<AddItems> items;
public driver()
[Code]....
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Jan 26, 2015
I try to create a jsf project within ejb which is add new car with entering attributes listing attributes and search by make.
Add and list methods working well , but have problem of list method. I tryed many combinations (using enhanced loop, iterative loop) but i cant provide working well. Always outputText returns nothing ,when i enter attributes.
Here is ejb code for adding ,getting and listing car items :
@Stateful
public class CarsBusiness implements CarsBusinessLocal {
List<Car> cars;
public CarsBusiness() {
cars = new ArrayList<Car>();
[Code] .....
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Mar 11, 2014
I facing issue with nested <c:forEach in my jsp page.I am using jstl.jar..Here is my code
in JAVA I have -->
List<ProductDefViewBean> productList = new ArrayList<ProductDefViewBean>();
productList.add(objProductDefViewBean);
request.setAttribute("ProductList", productList);
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
[code]...
javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach>
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Jan 4, 2015
I made my items class and I am storing my item as a String array to list them all and what I want to be able to do is type pickup, have the game read my location and display the items that are avaible to pickup at current location then type the item and store it in my playerInventory. Then, have it check the slot if it is doesn't equal null go to next.
Use a boolean value of 0 = false and 1 = true. then, have it check if the inv array = 1 or 0. if 1 go to next inv. If all are full then, ask player if they would like to replace an item. Use a 2d array for storage for slots and true or false value.
Here is my code
Player.java
package com.PenguinGaming;
import java.util.Random;
import java.util.Scanner;
public class Player {
public void User(){
Commands commands = new Commands();
Map map = new Map();
[Code] .....
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Feb 13, 2014
I have the following code. how can items be added to that list?
private List<IComponentNode> comp;
interface IAAAView {
// returns component with given code or null
IComponentNode findComp(String a);
// returns component with given renderer or null
[Code] .....
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Nov 30, 2014
I'm currently writing a small program, where I need to save data into a Defaulttablemodel in a jTable.I have to save the name, a number and the email-adress.I added a button which opens a new JFrame and there I need to change the email and/or the name.My current solution is far from good: No matter which row I select, i can only update the "newest" row (last created). How can I visualize the values of the selected row (out.println// or whatever) so I can go further and overwrite these values.My Code when I click on Update:
int zeilenwahl = jTableStudenttab.getSelectedRow();
// System.out.println(jTableStudenttab.getSelectedRow());
if (zeilenwahl != -1) {
this.setVisible(false);
new Bearbeitung().setVisible(true);
} else {
JOptionPane.showMessageDialog(rootPane, "Zum Bearbeiten Zeile auswählen");
}
Here is where the mistake is (probably)
public Bearbeitung() {
initComponents();
jTextFieldvorname.setText(Student.vorname);
jTextFieldnachname.setText(Student.nachname);
matrikelstring = matrikelstring.valueOf(Student.matrikelnummer);
jLabelmatrikelwert.setText(matrikelstring);
jTextFieldemail.setText(Student.email);
}
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May 18, 2014
try {
System.out.println("1");
int row = jTable4.getSelectedRow();
System.out.println("row");
String str = (jTable4.getModel().getValueAt(row, 0).toString());
[Code] .....
I select the first row the value is 0
I select the second the value is still 0
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Nov 8, 2014
I am making an edit page and I want to populate my drop down menu with things that were already selected. For example, if i want i click to edit my favorite food it will be populated with the one the user previously selected. How do i go about doing this? [URL] ....
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Mar 11, 2015
I tried implementing the bubble sort algorithm into my code, but now my output for the second array (in my code) is giving me a ton of zeros. How I can fix it so the zeros are removed and the only thing that remains in the output for my second array are the fixed numerically?
The first array is the original list of items, and the second array is a copy of the first array, but numerically adjusted.
public static void main(String[] args) {
System.out.println("Input up to '10' numbers for current array: ");
int[] array1 = new int[10];
int i;
Scanner scan = new Scanner(System.in);
[code]...
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Apr 17, 2014
How would I change items in the main menu (top of screen) that has the app's name on it (e.g. Firefox)? I've used :
System.setProperty("apple.laf.useScreenMenuBar", "true");
And it works, but how would I change things like "About [thisapp]" and make it execute a certain method?
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Mar 3, 2014
When I add to a JScrollPane (I'm adding to a JPanel then putting that in the scroll pane) it displays as many items in one row as possible. How can I make it so that it only displays one per row?
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Nov 5, 2014
I am working on a project. It is a shopping cart java program that should be setup with an array size of 5 and increased at increments of 3 if you go over 5 items. When I go over 5 items in increases however it changes the item names to null. See output below.
Here is the actual assignment:
In this exercise you will complete a class that implements a shopping cart as an array of items. The file Item.java contains the definition of a class named Item that models an item one would purchase. An item has a name, price, and quantity (the quantity purchased). The file ShoppingCart.java implements the shopping cart as an array of Item objects.
1.Complete the ShoppingCart class by doing the following:
a.Declare an instance variable cart to be an array of Items and instantiate cart in the constructor to be an array holding 5 Items.
b.Fill in the code for the increaseSize method. Your code should be similar to that in the CDCollection class handout but instead of doubling the size just increase it by 3 elements.
c.Fill in the code for the addToCart method. This method should add the item to the cart and update the totalPrice instance variable (note this variable takes into account the quantity).
d. Add a getTotalPrice() method to return the totalPrice.
e..Compile your class.
2.Write a program that simulates shopping. The program should have a loop that continues as long as the user wants to shop. Each time through the loop read in the name, price, and quantity of the item the user wants to add to the cart. After adding an item to the cart, the cart contents should be printed along with a subtotal. After the loop, print a "Please pay ..." message with the total price of the items in the cart. Compile and run this class.
OUTPUT
Enter the name of the item: Apples
Enter the unit price: .5
Enter the quantity: 1
Shopping Cart
ItemUnit PriceQuantityTotal
Apples$0.501$0.50
Total Price: $0.50
Continue shoppping (y/n)?
y
Enter the name of the item: Oranges
Enter the unit price: .5
Enter the quantity: 1
[Code] .....
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Jan 7, 2015
My current lesson in Java is about ArrayLists and I'm having a tough time to understand this bit of code: This exercise is concerned with the problem of deleting a block of items from an ArrayList.
public static void deleteBlock( ArrayList<String> strings, int n )
{
for ( int i = 0; i < n; i++ )
{
if ( strings.size() > 0 )
strings.remove( i );
[Code] ....
This is the output: [rosion, sion, on, n]
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Oct 9, 2014
I was wanting to select an item in a comboBox and display it in a text field but all it's doing at the minute is retrieving the first item in the comboBox and placing that in the txt field
String value = (String) comboBoxEnv.getSelectedItem().toString();
if(comboBoxEnv.getSelectedItem()!= null){
txtTo.setText(value);
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Apr 16, 2014
If I have a ComboBox and I want to copy the selected value to textfield. How can I do it?
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Mar 9, 2015
I just learned about 2D arrays and am still trying to get a grasp on the concepts. I'm a little confused by how you return all the values in a row to add up and display the sum if the row is entered by the user.
import java.util.*;
public class RowSum {
public static void main(String[] args) {
Scanner s = new Scanner (System.in);
int userpick = 0;
int sum = 0;
[Code] .....
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May 13, 2014
import java.awt.*;
import java.util.*;
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JCheckBox;
import javax.swing.JPasswordField;
[Code] .....
How can I make the JTextField to popout when a JCheckBox is selected? I tried putting it under the general if statement and under the if statement which is inside the general if statement.
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Jun 6, 2014
I want perform some calculations whenever a specific cell block is focused in JTable, I've tried using focusListener on JTable but looks like my table isn't triggering the event. I don't know why, what to do?
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Feb 4, 2015
I'm working on a spreadsheet like app using JTable and was wondering if I can make the first cell of the table be selected when the window opens. Is there a way to do so?
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Aug 18, 2014
I am having a problem with the SelectOneMenu control. I want the the selected item to be be displayed via the valueChange Ajax event listen. But this is not happening.
However, when I change the value in the SelectOneMenu and then click on the Submit button, then selected value is getting displayed via the 'save' bean function
The relevant xhtml code is as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<style type="text/css">
[Code] .....
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