Servlets :: ArrayList With Previous Values
Jun 12, 2014I declared an arraylist in doPost method and i passed it to the another jsp. The problem is arraylist contains old values for every new request.
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Servlets :: How To Send Multiple Values Of Same ID But Different Values Of HTML
Feb 27, 2015I have a question in mind that this is my registration form. I am sending these values from HTML form to server and database. I have question that in my case if I click next to Add Another Mobile no in HTML.then a block is genereated and each time a new name is generated.
My Question is if I click 6 times then 6 name attribute are generated. How can I send and differentiate them on my server side.
Because at their I will use something request.getAttribute("Attr_Name");
But they are same. How to do this?.
Accessing Values From ArrayList
Nov 27, 2014I'm a total newbie to Java, and until now all I've done was draw some shapes and flags. I'm struggling to understand the code I've been given. I need to access values stored in an ArrayList within another class. Here are the two classes Seat and Mandate:
package wtf2;
import java.util.*;
public class Seat {
public int index;
public String place;
public int electorate;
[Code] ....
The main class contains code that feeds data from 2 text files into Seat and Mandate. From there I managed to access the date in Seat (at the end):
package wtf2;
import java.io.*;
import java.util.*;
public class CW2 {
public static void main(String[] args)throws Exception {
[Code] ....
Now,instead of getting just the mp for Edinburgh South I need to get the vote values, compare them to each other, take the second biggest and display the associate party value. How to access data from that Array to get started at least.
Assign Values To ArrayList?
Apr 27, 2015This code currently just prints out the memory for the objects. What I am doing that it obviously wrong?
import java.util.ArrayList;
import java.util.List;
public class deck extends Card {
public final String[] SUITS = { "Heart", "Diamond", "Clubs", "Spade" };
ArrayList<Card> deck = new ArrayList<Card>();
[Code] .....
How To Add Variables And Default Values To Arraylist
Mar 23, 2015I am facing difficulties in identifying the proper way to add the selected colors of cards into an arraylist. I am having an arraylist which is:
Java Code: private List<String> selectedCars = new ArrayList<String>(); mh_sh_highlight_all('java'); And one more for the carColors:
Java Code: private List<String> carColors = new ArrayList<String>(); mh_sh_highlight_all('java');
The selectedCards array will store the selected cars ['TOYOTA','MAZDA','NISSAN'] as per the selection from the user.For certain types, there is one default color which is 'Black', however for some of them, the user can select different colors.(ex. if selection is 'Toyota')
Java Code:
String carColor="";
String toyotaColor=""; // The value will be retrieved from the form once the user selected the color
if (selectedCars.contains("MAZDA"))
{
carColor="Black";
}
else if (selectedCars.contains("TOYOTA"))
{
carColor=toyotaColor;
[code]....
Adding Integer Values Into String Arraylist
May 5, 2014I'm having an issues with adding integer values to a string list. The question is asking me "the method should iterate over runners, and for each runner generate a random number between 90 and 180 (inclusive) which should be used to set the time (in minutes) for that runner."
I have been able to get the random number and iterating over the runner arraylist but I haven't been able to figure out how to add the values generated into the runners list. I am also using BlueJ.
Here's the whole code I have at the moment:
import java.util.*;
import java.io.*;
import ou.*;
import java.util.Random;
/**
* Write a description of class MarathonAdmin here.
*/
public class MarathonAdmin {
// instance variables - replace the example below with your own
[Code] .....
Loaded ArrayList But Can't Retrieve Stored Values
Nov 4, 2014I am creating a shopping list, with each element and object called product from the Item attribute class. Each product object has a description, price, and priority. From user input, I am able to create each product object, and then .add to my arraylist. I know that it successfully adds because I have it printed in each iteration of the do-while loop. Once the user indicates they want to quit, the loop ends. I then want to print each description, price, and quantity but this for loop will only print the last element over and over. Here is what I have:
ArrayList <ItemAttribute> list = new ArrayList<ItemAttribute>();
Scanner keyboard = new Scanner(System.in);
ItemAttribute product = new ItemAttribute();
public void findDescrPrice() {
/**
* Get the item name (description) for each list item
[code]...
Using Arraylist Index And Items As Hashmap Key And Values?
Apr 6, 2014I am working on the Kevin Bacon - 6 degrees of bacon problem. I want to take my Array List and use the index and Values that I have saved in it as the Key and Value of a Hashmap. Below is my code.
HashMap<Integer, ArrayList<String>> actors =
new HashMap<Integer, ArrayList<String>>();
ArrayList array = new ArrayList();
try (BufferedReader br = new BufferedReader(
new FileReader("actors.txt"));)
[code]...
saving each one in it's own spot. I want to use the index of each one as the key to find it in the Hashmap....
How To Randomly Assign Specific Values In Array Or ArrayList
Apr 3, 2015I'm trying to build a monopoly like game, and atm I'm trying to find way how to build the Community and Chance chest cards. so far, my logic is
1-create an ArrayList of cards with a given order
2-for a given number of times(for loop) generate 2 random numbers ,which will be the parameters for Collection.swap().
3-swap.
here's the code for the shuffler Button
shuffler.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for(int i=0;i<shuffeledMessages.length;i++){
int randoma=(int)(Math.random()*4);
int randomb=(int)(Math.random()*4);
Collections.swap(myMessages,randoma,randomb);
}
}
});
For now things seem to work pretty ok, but I'm wondering if this is a good and efficient way to shuffle a card chest especially in case of large number of cards. plus, I'm not sure what would be a good loop count for effective shuffling, in my case I used i<arraylist.size
JSF :: How To Convert Hashmap Values To Arraylist To Display On Page
Apr 2, 2015I need assigning the selected hashmap values into a list and to display the values in a jsf page. The user will select certificates and will be stored in the below list:
private List<String> selectedCertificates = new ArrayList<String>();
The selectedCertificates will have the values ("AA","BB"). Now I will be passing the list into a hashmap in order to get the names and to display them on the jsf page.
My code is below:
Map<String, String> CertificatesNames =
new HashMap<String,String>(selectedCertificates.size());
CertificatesNames.put("AA", "Certificate A");
CertificatesNames.put("BB", "Certificate B");
CertificatesNames.put("CC", "Certificate C");
for(String key1: selectedCertificates) {
System.out.println(CertificatesNames.get(key1));
}
I want to display in my jsf page :
Certificate A
Certificate B
Now my issue is that is how to display all the values of the CertificatesNames.get(key1) in the jsf page as I tried to do the below and it printed all the values when I used the #{mybean.beans} using the :
List beans =
new ArrayList(CertificatesNames.values());
So how to do this?
Comma Separated Data Set - Return Values In ArrayList
Feb 18, 2015I am trying to write a program that will take any comma separated data set and return the values in an arraylist without any commas. Like if I input "hello, world, program, java" it would output an arraylist [hello,world,program,java].
public void run(){
String line = readLine("Enter a CSV-formatted line of data: ");
int lowerBound = 0;
String entry = new String("");
ArrayList<String> string = new ArrayList<String>();
[Code] .....
Servlets :: How To Set Values Into JSP Page From Database
May 30, 2014I want to set the values coming from database with multiple field's Through AJAX and Custom XML. How to do ???
View Replies View RelatedFile Reading Values To Draw Image (java Graphics DrawString / ArrayList / Array)
Sep 13, 2014//compiler error I'm receiving
J:CS3Student Folder Review Lab #2APlusImage.java:41: error: cannot find symbol
xcor.add(read.nexInt());
[Code].....
Servlets :: How To Retrieve Values Of Radio Buttons
Jan 20, 2014<html>
<body>
<form action="login">
Male:<input type ="radio" name ="sex" value="Male"> <br>
Female:<input type = "radio" name="sex" value="Female"> <br>
<input type="submit" value="Enter">
[Code] ....
when the see the result i just get a strange value as "ON" but I am not getting the required value ,I mean Male or Female.
JSP :: Unable To Pass Values From Page To Servlets
Aug 12, 2014I am trying to pass values from JSP Page to Servlets but I am getting a NullPointerException
Here is my JSP code
<html>
<head>
<title>Student Registration Form</title>
<style type="text/css">
h3{font-family: Calibri; font-size: 22pt; font-style: normal; font-weight: bold; color:SlateBlue;
text-align: center; text-decoration: underline }
table{font-family: Calibri; color:white; font-size: 11pt; font-style: normal;
[Code]...
Servlets :: HTML To Servlet And Come Back To Same Page With Field Values
Apr 11, 2014i have one html page ,inside html radio button and 3 textboxes and one submit button ->action->SampleServlet.java-> from here again come back to html page with checked radio buttton value and text box value. I dont want to click back button in this case, html page to servlet->here i have to call back to my html page with checked radio button and text box value .
I tried response.redirect(original.html)-->i cant able to display checked radio button and textbox value also tried requestdispatcher forward/include,html page comes newly from starting but i dont want it,i want to view in html page with checked radio button and text box value.
Java Array Update Without Using ArrayList - Add Values And Update Size?
Feb 9, 2015I am trying to create an array list without using the built in arrayList class that java has. I need to start the array being empty with a length of 5. I then add objects to the array. I want to check if the array is full and if not add a value to the next empty space. Once the array is full I then need to create a second array that starts empty and with the length of the first array + 1.
The contents of the first array are then copied into the new array without using the built in copy classes java has and then the new array ends up containing 5 elements and one null space the first time round. The first array is then overwritten with the new array containing the 5 elements and the null space. The process then starts again adding values until the array is full which will be 1 more value then recreating the second array empty and the length of the first array + 1. This is my attempt at creating this but I have run into multiple problems where I get only the last value I added and the rest of the values are null:
public class MyArrayList {
public Object arrayList[];
public MyArrayList(Object[] arrayList) {
this.arrayList = arrayList;
[code]...
How To Add Previous Button
Dec 14, 2014I have gotten the code up and running, now I am trying to add a previous button. The next button I have now works fine but I can't seem to get the previous button to work.
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintStream;
import java.util.Arrays;
[Code] .....
Cannot Get First / Last And Previous Button To Work
Dec 14, 2014Okay so I have this part done and I cannot get all the JButtons to work. This is my first GUI!
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintStream;
import java.util.Arrays;
import javax.swing.BoxLayout;
[Code] ....
BTW the error is on 310, 311, and 312 and the error is cannot find symbol ....
How To Resize Array With Keeping Previous Value
Jan 29, 2014Suppose i have a book class and bookArray class.in book class contains four fields name,id ,publisher and author. in bookArray class: book bookArray=new book[20]; i have to save those four fields in the array but after completed the array i should have re-size the array with contains the previous data. How?? I have pass those values from the main class..
View Replies View RelatedJSP :: How To Delete Previous Data After Refresh
Nov 6, 2014If I am refreshing JSP page the old data is remaining as it is with new data.what can be done to remove previous data from that JSP?
View Replies View RelatedJSP :: JQuery Datepicker - Next And Previous Button
Nov 14, 2014<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>JQuery Demo</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.2/themes/smoothness/jquery-ui.css" />
[Code] ....
The above code works great and displays date picker with next and previous button but when I use same code on a jsp page the buttons to go back to previous and next month does not show up.
Trying To Get Data From Previous Assignment To Be Displayed In New One Using GUI
Apr 26, 2014I am trying to get items to display that would display in a command prompt now into a GUI. I am freaking lost at the moment, probably because I've been staring at this code for over a week now. I have included all the files that are necessary to run the program as an attachment for your own testing purposes. Should I be using a TextField to display the data from the CSV files? How do I get the data to be displayed? How would I get it to be displayed based on the different files Staples (newSTPL.csv), Apple (newAPPL.csv), and Microsoft (newMSFT.csv)?
Java Code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/**
* DataAnalyzer Class
* This class instantiates the methods from the ReadFiles Class and Calculations Class.
[code]....
JSP :: How To Persist User Previous Selection Of Radio Button
Sep 28, 2014I am making a quiz app and stuck with this problem. User is presented with question with options he select one radio button and move on to next question by clicking next button.
Now when user clicks on the previous button to change the previous selction , I want his previous selection to be shown selected. How can I do that.
Load Some Information From Previous Object Files And Add New Objects To Them Afterwards
Dec 17, 2014I have a project in java that asks me to load some information from previous object files and add new objects to them afterwards. I created the files, but when I close the program and search for the previous information that should've been saved in the object file , it return nothing.
Here is the code.
Add method:
public boolean addUser (User u){
users[Ucount]=u;
Ucount++;
return true;
}
The save method:
public void saveUser (){
try{
FileOutputStream FOS = new FileOutputStream("User.txt", true);
ObjectOutputStream OOS = new ObjectOutputStream (FOS);
[Code] ....
The read method:
public void readUser (){
try{
FileInputStream FIS = new FileInputStream ("User.txt");
ObjectInputStream OIS = new ObjectInputStream (FIS);
for (int i=0;i<Ucount;i++){
[Code] ....
*Note: When I open the object file I could see that the information are actually there, so I think there's a problem with the read method I'm not sure what it is.
Swing/AWT/SWT :: Database Scrolling Button To Display Next And Previous Record
Apr 19, 2014I have jFrame where I have to display data from database on button click. There are 4 buttons, first to display the first record in database, last to display the last record in database, next to display the next record and previous to display the previous record. I have done first and last record but what should I do to display the next and previous record.
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