Spell Checker Using Hash Tables Not Working
Feb 10, 2014I am trying to use this program for reference but its not working ...
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Enterprise JavaBeans :: JPA With 3 Tables - Evaluate Query By Joining 2 Tables And Update Results In 3rd Table
Nov 8, 2013I have 2 tables on 1 database
Table A, Table B
I need to evaluate a query by joining these 2 tables and then update the results in the 3rd table in another database. I need to use stateless session bean using JPA I believe. I need 3 Entities for each of the tables here.
Java Spell Check
Sep 23, 2014My goal is to make a working spell check program.I have made some progress, but the more I test, the more issues I get and I continue to edit the algorithm.
import java.util.*;
import java.io.*;
public class SpellCheckTestClass{
public static void main(String [] args) throws IOException{
ArrayList<String> englishwords = new ArrayList<String>();
ArrayList<String> suggestions = new ArrayList<String>();
Scanner in = new Scanner(System.in);
String entry = in.next();
[code]....
Amount Of Spell User Uses - How To Increment Initial Randomized Output
Feb 16, 2015I created my own class and it basically randomizes the amount of 'spells' [magic] a user uses (range 1-5). I can't figure out how to increment the initial randomized output to make something like this :
User X : uses 2 spell.
User Y : uses 3 spells.
User X : uses 3 spells. (Taking the randomized 2 and increment by 1)
User Y : uses 4 spells. (Taking the randomized 3 and increment by 1)
My current setup looks like this : First one is the class I created and the second one is just how the output would look like. (seperate by +++++...)
My goal is to create a METHOD to increment it.
public class Spell {
// Max number of spells
private final int MAX_FACE_VALUE = 5;
// Current face value
private int faceValue;
// New instance of Spell
public Spell() {
faceValue = 1;
[Code] ....
+++++++++++++++++++++++++++++++++
public class SpellOutput {
public static void main(String[] args) {
//Object creation
Spell spellCasterOne = new Spell();
Spell spellCasterTwo = new Spell();
Spell spellCasterThree = new Spell();
[code] ....
Tables In Java
Mar 22, 2015We started learning about tables and have a little program. The teacher gave us an excercise and doesn't works (not running), I receive too many errors. So any simple java program with tables with 20 numbers, that is giving random numbers?
View Replies View RelatedPassword Strength Checker
Mar 4, 2014It had no syntax error but if there would be any other error or if i would receive a wrong result
import java.util.*;
class tester {
public static void test() {
Scanner input=new Scanner(System.in);
int size= 0;
System.out.println("Enter your password:");
String enter=input.next();
size = enter.length();
[Code] .....
Fetching Rows From 2 Tables Using HQL
Sep 29, 2014Using HQL I am fetching the rows , now i need to iterate through the list and convert each row in the list to a "string" and append the string to a buffer.... How to do it
View Replies View RelatedSimple Password Checker Into JOptionPane?
Sep 1, 2014i have this source code...
import java.util.Scanner;
//I had to use scanner in this program because I had to create objects that were in the Scanner class, such as in row 16.
* This program confirms a password typed into a *
* console window *
*/
public class Homework1 {
public static void main(String[] args) {
//Needs to add a scanner to the program to continue on
Scanner keyboard = new Scanner(System.in);
[code]....
Now I need to create a second version of this program that uses JOptionPane to get the inputs from the user and show the output!
JSP :: How To Delete And Insert Data Into Two Different Tables
Jun 2, 2014I am creating a portal using JSP and MySQL with eclipse IDE. I have a scenario where data is stored on draft table and is retrieved then stored on another table. I need the entry in the draft table to be deleted after the insertion. When I tried to run the code it redirects to success page but makes no impact on database(neither inserts not gets deleted).
<%@ page import="java.sql.*" %>
<%@ page import = "java.util.Date,java.text.SimpleDateFormat,java.text.ParseException"%>
<html>
<head>
<title>JSP Processing</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
[code]....
Checker Game With Minimax Algorithm
Apr 12, 2015I have a checker game already and I am trying to make an AI opponent even if not so Intelligent as long as it can move chips on its own until the game is over.
View Replies View RelatedProgramming A Simple Password Checker
Aug 30, 2014Use Java to write and run a simple console-window program for checking passwords. The program must satisfy the following requirements:
-When the program runs, it should first print its name, e.g., Password Checker
-The program should next prompt the user to enter a username, e.g.,
Please enter your username:
-The program should next prompt the user to enter a password, e.g., Please enter your password:
- If the user enters a correct password, i.e., one that matches an internal secret password, the program responds. You are approved by access control!, and quits.
-If the user enters an incorrect password, the program responds
Try again:
-If the user enters a correct password matching the secret one, the program responds. You are approved by access control!, and quits.
-If the user enters an incorrect password, the program responds
package class1;
import java.util.Scanner;
public class class1 {
public static void main(String[] args) {
// TODO Auto-generated method stub
[code]....
Formatting Tables For Console Output?
Apr 13, 2014I am writing a class which formats console output as a table. It displays the type of an entry, the name of an entry, and the data for an entry. I am stuck on a required for loop which appends a tab character to a string, for formatting it as a table. It doesn't seem to be adding any of the tabs and I can't tell what I've done wrong. As far as I can tell the contents of the loop are never reached, and I can't make sense of it.
The ConsoleWriter class that contains the code that is in error...
Java Code:
package frontend;
public class ConsoleWriter {
private static String tabbedData(String data, int min) {
System.out.println(); //for debug
int tabcount = 0;
int len=8*min;
[code]....
Trying To Create A Hash Map
May 5, 2014I am trying to create a class (DVD) with an instance variable that references a map, the constructor for this class must create an empty map and assign it to the instance variable map. I want to populate this map with instances of a different class called tv series, I am using blueJ, I am not sure why this doesn't work
Java Code:
import java.util.*;
public class DVD
{
public static Map<String, TvSeries>DVD;
public TvSeries program;
[Code] .....
How To Create Sports Tables Java Applet
Jun 1, 2014I've been using a Java applet for sports tables.It has been very useful for me. However, the recent developments from the people at Oracle have made this program impossible to use. The point is that I need this program and I need it fast.I've been in touch with the person who once created this applet and he has no intentions at all to upgrade it or do anything to make it function. How to make the program works with their new updates.
View Replies View RelatedInt Cannot Be Converted To Boolean On Password Checker Program
Apr 28, 2014I am trying to write a password checker program and thats the error i get. (the final error!) but this one i dont know how to fix. here is my code.
/* Text
Text
text
*/
import java.util.Scanner; // Imports the Scanner class to get Keyboard Inputs
class PriceRichardChapter5Test
{
public static void main (String [] args) {
String Password; // Creates the Password variable
[Code] .....
Retrieve Data From Database By Joining Tables
Dec 23, 2014I am trying to retrieve data from my database by joining my tables. So far i have managed to join my four tables in my database and retrieve all the information in that table. Now what i want to do is create a prepared statement in java that allows me to retreive certain data. Here is my joining query.
SELECT student.idNumber,student.names, student.surname,
course.description,
coursemarks.mark,
class.form,class.id
FROM `student`
LEFT JOIN `coursemarks` on student.idNumber = coursemarks.studentid
LEFT JOIN `course` on course.courseid = coursemarks.courseid
LEFT JOIN `class`on student.idNumber = class.studentID;
What I want is to select all the data depending on the class passed and the form passed, e.g a person might decide to select a certain form only or a certain form and class
Sudoku Checker Program - Cannot Find Symbol
Jul 9, 2014I can't get the code to compile for the driver every time i get an error message saying
SudokuCheckerTest.java:28: error: cannot find symbol
foo.displayGrid(grid);
^
symbol: variable grid
location: class SudokuCheckerTest
SudokuCheckerTest.java:29: error: cannot find symbol
foo.getGrid(grid);
[Code] .....
4 errors
Java Code :
import java.util.Scanner;
public class SudokuChecker{
public SudokuChecker(){
// displays intro code and initializes the array grid as well as using method calls.
Scanner in = new Scanner(System.in);
int [][] grid = new int [4][4];
displayGrid(grid);
[Code] ....
Checker Game Move And Jump Algorithm
Sep 7, 2014I'm trying to make a checkers game in Java and I managed to make my grid with it's button on it. Each button which has a pawn on it has it's own actionListener which was all done in the loop as I made the grid as shown in my code below. Now I have a huge problem. I don't know how to handle the move, check if move is legal, jump and double jump. Here is the code I wrote so far. I wrote it in such a way that all the buttons which have a pawn on them can perform the same action but then I'm completely stuck.
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
public class CheckerBoard extends JPanel{
public static final int WIDTH = 530;
public static final int HEIGHT = 530;
private JButton[][] grids;
[Code] .....
What Is Meant By Hash Code
Apr 3, 2014what is mean by hash code??
View Replies View RelatedHash Key Comparisons For Two Objects
Apr 17, 2014I want to generate a Hash key for a [ Nested Hierarchical nodes]. Any lightweight non-cryptographic hash map functions which generate a key, so that I can use this hashkey to comparison purposes.
NOTE: Security is not a concern for me, I just want to create a Unique ID.
Why Is The Word Hash Used In LinkedHashSet
Apr 9, 2014LinkedHashSet=Linked + Hash +Set
In linkedHashSet are the elements stored according to the insertion order or according to the hash value. If the elements are stored according to the insertion order then why is it not named as LinkedSet instead of LinkedHashSet? Why is the word hash used in LinkedHashSet?
Unable To Add Two Strings To A Hash Map
Feb 11, 2014I am trying to add two strings to a hash map. the first being the key, a 3 digit code that can have duplicates, and the value to store in an ArrayList. From what I've read, when add a key to the hashmap that is a duplicate, the previous gets overwritten and that is why I am trying to put the values in an array list. I was hoping that when the key is looked up, it would print all the values associated with that key:
class library{
HashMap<String, ArrayList<String>> checkoutBooks =
new HashMap<String, ArrayList<String>>() ;
ArrayList<String> patName = new ArrayList<String>() ;
public void checkoutBook(String isbn, String patron) {
patName.add(patron) ;
[Code]...
So when I try to add values such as:
library.checkoutBook("000", "test 1");
library.checkoutBook("000", "test 2");
library.checkoutBook("001", "test 3");
library.checkoutBook("001", "test 4");
library.checkoutBook("002", "test 5");
library.checkoutBook("002", "test 6");
[Code]...
ArrayList Features - Implement Password Strength Checker
Jun 18, 2014Iv created an array list which contains people and attributes such as user id, username etc. It works fine for the most part. It allows the user to enter a name into the system. If the name entered matches a name stored in the array list then it will display that user, its id, name and password. I need to implement a password strength checker; but i am struggling.
First off; i need a method that will determine how strong a password is. I then need to find a means of how to output the result of this, outputting it alongside the other outputted attributes: id, name and password.
Here is what i have attempted so far, but to be honest its probably completely different to the exact strength check and way that i want the result to be displayed. I know that the code below is a good start, but its not close to implementing the code in a way that the password strength result can be outputted in the arraylist after a search for a user and their password is made.
private int checkPasswordStrength2(String passw)
{
int strengthCount=0;
String[] partialRegexChecks = { ".*[a-z]+.*", // lower
".*[A-Z]+.*", // upper
".*[d]+.*", // digits
".*[@#$%]+.*" // symbols
};
if (passw.matches(partialRegexChecks[0])) {
[Code] .....
I just really want to get this done. Iv looked for solutions online; but they implement a password strength checker much differently to how mine needs to work from what i can tell.
Accessing Value From A Separate Hash Table
Feb 25, 2014I am implementing the hash join algorithm for a project with a hard coded hash function. I've hashed the first relation and I've hashed the second relation. The problem is when hashing the second relation I only know how to add the tuple from the second relation into a third relation and not also access the first relation tuple at that time
The "hashtable" structure contains the hashcode of my key as well as the tuple stored in a string. This code below is taking place in the hashing of the second table, my function determines that both these tuples share the same hash code based on the first element in the tuple (element 0) so I add the tuple from my second relation to the qRelation but I also want to add the tuple from the hashtable at that point and I don't know how to access that string
if(hashtable.containsKey(tuple/*(RELATIONA)*/.get(0).hashCode()))
{
//Add the tuple from relation A into qRelation wich matches the
//above condition
qRelation.addAll(tuple/*(RELATIONB)*/);
}
Hash Mapping Algorithm In Java
Apr 13, 2015I need a Example of a Hash Mapping Algorithm in Java. This Mapping Needs to do the following:
Map an Array of Strings, to integer values which correspond to each fruit
private String[] Fruit = {"Apple","Orange","Pear","Grapes"};
Apple: 1 + 1
---------------
Orange: 1+ 2
---------------
Pear: 1 + 3
---------------
Grapes: 1 + 4
---------------
I not sure where to start at the Moment...
Auto Resizing Bucket Hash Table
Apr 30, 2015I have to write a resize method so that when my Bucket gets to a certain point, then it resizes the bucket when it is called. What is happening is, I am getting strange results when I run the method. My mean bucket length should be at 2.5 for the last insertion, but I am getting something like 0.1346. Here is my dictionary class
// The "Dictionary" class.
// The Dictionary class implemented using hashing. Hash buckets are used. A dictionary contains a set of data elements with corresponding keys. Each element is inserted into the dictionary with a key. Later the key can be used to look up the element. Using the key, an element can be changed or it can be deleted from the dictionary. There is also an operation for checking to see if the dictionary is empty.
package dictionary;
public class Dictionary {
protected final static int MAX_BUCKETS = 1000; // number of buckets
protected DictHashEntry[] buckets; // the bucket array
private int collisionCount = 0;
[Code] .....