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Java Vote Program Error


Java Vote Program Error

By : user2952750
Date : November 19 2020, 01:01 AM
I hope this helps . I have written a code that tells you whether you are eligible to vote or not.. but when I compile it it shows an error or warning the message says: , Just compile your code via:
code :
javac -Xlint:unchecked Vote.java
JComboBox<String> combo = (JComboBox<String>) event.getSource();
import javax.swing.*;
import java.awt.event.*;

class CustomActionListener implements ActionListener
{
  private JComboBox<String> comboBox;
  private JTextField textField;
  public CustomActionListener(JComboBox<String> comboBox, JTextField textField){
    this.comboBox = comboBox;
    this.textField = textField;
  }
  @Override
  public void actionPerformed(ActionEvent event)
  {
    // Just use the comboBox
    ComboBoxModel<String> model = comboBox.getModel();
    int index = comboBox.getSelectedIndex();
    String selectedAge = model.getElementAt(index);
                if(selectedAge.equals("10-17")) {
                    textField.setText("Not Eligible");
                } else {
                    textField.setText("Eligible");
                }
  }
}
ageList.addActionListener(new CustomActionListener(ageList,results));            


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How to program a vote up system?

How to program a vote up system?


By : PRASANTH P.C
Date : March 29 2020, 07:55 AM
Any of those help For this example, let's assume you're voting on so-answers. This will require at least three tables:
Users, Answers, Votes
code :
voteid | userid | answerid | value
----------------------------------
   1   |   12   |   383    |   1
   2   |   28   |   383    |  -1  (negative number would require signed values)
SELECT * 
FROM votes 
WHERE (userid = 12) 
  AND (answerid = 383)
UPDATE votes 
SET value = $votevalue 
WHERE (userid = 12) 
  AND (answerid = 383)
    http://stackoverflow.com/posts/1303528/vote/2
    vote.php?answerid=383&vote=1
if ($_GET) {

  $userid   = $_SESSION["userid"]; // assumes the user is logged in via SESSIONS
  $answerid = $_GET["answerid"];
  $votetype = $_GET["vote"];

  $query = "SELECT * 
            FROM votes 
            WHERE (userid = {$userid}) 
              AND (answerid = {$answerid})";

  $result = mysql_query($query) or die(mysql_error());

  if (mysql_num_rows($result) > 0) {
    # User has voted
    print "Sorry, you are only allowed one vote.";
  } else {
    # User has not voted, cast the vote
    $query = "INSERT INTO votes (userid, answerid, votevalue)
              VALUES({$userid},{$answerid},{$vote})";
    $result = mysql_query($query) or die(mysql_error());
    if (mysql_affected_rows($result) > 0) {
      print "Your vote has been recorded.";
    }
  }

}
Simple voting system doesn't add vote to database after clicking vote up/down (Rails)?

Simple voting system doesn't add vote to database after clicking vote up/down (Rails)?


By : Ashley D
Date : March 29 2020, 07:55 AM
I wish this helpful for you It is probably a typo but shouldn't you have, Vote.new, Vote.find,
Instead you have Votes.find and Votes.new
code :
class VotesController < ApplicationController
  def vote_up
    check = Votes.find(:first,
                       :conditions => ["user_id = ? AND post_id = ?", session[:user_id], params[:id]])

    post = Post.find(params[:id])

    if check.nil?
      vote = Votes.new
      vote.post_id = params[:id]
      vote.user_id = session[:user_id]
      vote.value = true
      vote.save
      post.total_value += 1
      post.save
      render :text => post.total_value
    elsif check.value == false
      check.value = true
      check.save
      post.total_value += 2
      post.save
      render :text => post.total_value
    else
      render :text => "You have already voted up for this post."
    end
  end

  def vote_down
    check = Vote.find(:first,
                      :conditions => ["user_id = ? AND post_id = ?", session[:user_id], params[:id]])

    post = Post.find(params[:id])

    if check.nil?
      vote = Vote.new
      vote.post_id = params[:id]
      vote.user_id = session[:user_id]
      vote.value = true
      vote.save
      post.total_value -= 1
      post.save
      render :text => post.total_value
    elsif check.value == true
      check.value = false
      check.save
      post.total_value -= 2
      post.save
      render :text => post.total_value
    else
      render :text => "You have already voted down for this post."
    end
  end
end
Using .htaccess to redirect /vote to /vote.php?vote=1

Using .htaccess to redirect /vote to /vote.php?vote=1


By : Aakanchha Daluka
Date : March 29 2020, 07:55 AM
will be helpful for those in need I need help with my .htaccess file. So far, nothing seems to work. I have made a PHP file called vote.php that uses GET variables to redirect the user to the appropriate voting website. Now, I want the user to be able to type myurl.com/vote1 which will redirect them to myurl.com/vote.php?vote=1 and so on vor /vote2, /vote3, /vote4 and /vote5 All help is appreciated! , Tanner , Put this code in your DOCUMENT_ROOT/.htaccess file:
code :
RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^vote([0-9]+)/?$ /vote.php?vote=$1 [NC,QSA,L]
MySQL vote history for user with total vote count for each item

MySQL vote history for user with total vote count for each item


By : Alejandra Rendon
Date : March 29 2020, 07:55 AM
I hope this helps . Two things.
First, try replacing your HAVING clause in the second query with HAVING MAX(CASE WHEN v.VOTER_ID = :id THEN 1 ELSE 0 END) = 1.
code :
SELECT COUNT(DISTINCT v.VOTE_ID) VOTECOUNT, n.ID, n.NAME
FROM `votes` as v
LEFT JOIN `names` as n
ON n.ID = v.NAME_ID
GROUP BY n.ID, n.NAME
HAVING MAX(CASE WHEN v.VOTER_ID = :id THEN 1 ELSE 0 END) = 1
Reverse for 'vote' with arguments '('',)' not found. 1 pattern(s) tried: ['app1/(?P<question_id>[0-9]+)/vote/$']

Reverse for 'vote' with arguments '('',)' not found. 1 pattern(s) tried: ['app1/(?P<question_id>[0-9]+)/vote/$']


By : Twinkle Malhotra
Date : March 29 2020, 07:55 AM
may help you . Your model is MyQuestion, therefore the detail view adds the object to the context instance as myquestion. You either need to change your template to use myquestion:
code :
{% url 'app1:vote' myquestion.id %}
class DetailView(generic.DetailView):
    model = MyQuestion
    context_object_name = 'question'
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