Formatting Table For A Single Error Correction Program
Apr 25, 2014
So I want to format my output in a table much like the one in the book. I have an SECTable class and it displays the table one row at a time. 4 of the rows are in the 2D array in the SECTable class. The decimal position values are just displayed via a loop going from 12 to 1 (8 bits), 21 to 1 (16 bits), and 38 to 1 (32 bits) and the binary position values have their own class which contains an ArrayList of the binary position values as strings. Here's an example of how I want the table to be formatted (this is after an error has been generated so all the rows will be displayed):
Binary Position: 1100 1011 1010 1001 1000 0111 0110 0101 0100 0011 0010 0001
Decimal Position: 12 11 10 9 8 7 6 5 4 3 2 1
Stored As: 0 0 1 1 1 0 0 1
Check Bits: 0 1 1 1
Fetched As: 0 0 1 0 1 0 0 1
Error Check Bits: 1 1 1 0
And I need it to format similarly for 16 bits and 32 bits as well. Here's the display function for the list of binary position numbers:
public void displayList() {
System.out.print("Binary Positions: ");
for (int i = (posNums.size() - 1); i >= 0; i--) {
System.out.print(posNums.get(i) + " ");
}
}
Here are the display functions for the rows (separated them so that there wasn't so much code in one function):
public void displayTable() {
// Print the Binary Position Values
displayBinPositions();
// Print decimal bit positions
displayDecPositions();
[Code] ....
The print3rdRow and print4thRow are booleans to determine whether an error has been generated yet (user chooses from menu to create an error and the program picks a random bit to change and the erroneous data is put in the 3rd row and it's check bits are put in the 4th row). I tried doing spaces but it just wouldn't come out like I wanted.
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Feb 26, 2014
Steps are:
Create a new class, MultiplicationTable, that has a single field to store an integer multiplication table
Create a constructor that takes a parameter for the maximum number to be multiplied in the table. For example, MultiplicationTable(9) would have a maximum value of 81, where as MultiplicationTable(12) would have a maximum value of 144. Initialize the field in the constructor with the appropriate multiplication values.
Create a multiply method that takes two integers as parameters and returns their multiplication value by looking it up in the field. Make sure to test this method with values greater than the max the table should have stored. How can you handle these cases?
Create a main method that repeatedly tests multiply by printing out the entire multiplication table.
So far i got:
Java Code:
package collectionsHw_netid;
class MultiplicationTable {
// field
int mt;
MultiplicationTable(){
{
for (int i=0; i<=9; i++)
[Code] ....
Is my code right? also how do i print it out? the professor told us that everything should be outside of the main method...
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Sep 28, 2014
I have this error that keeps coming up any time I select one of my buttons. It actually doesn't hinder the performance of the project, everything works. But I am concerned I missed something and errors are never a good sign.On a slightly different note, I would like to figure out what the best way to format my output would be? I would like it to display as "100.00 F". I have a couple ideas on how to get the F symbol (or other symbol) by inserting something like
String degreesymbol = "F" or whichever it is and then returning that in the output string later. I can't get the decimal formatted correctly and I don't know how to print the degree symbol.Here is the code
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.DecimalFormat;
[code]....
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Sep 28, 2014
I am also having trouble with another program.
Java Code:
import javax.swing.JOptionPane;
import java.util.*;
import java.text.DecimalFormat;
import java.util.StringTokenizer;
public class ShelbyHarms_3_03 {
public static void main (String [] args) {
double a, b, c; //Input sides of triangle
double x; //Perimeter of triangle
double area; //Area of triangle
[Code] .....
Here are the errors:
ShelbyHarms_3_03.java:39: error: variable x might not have been initialized
JOptionPane.showMessageDialog(null, formatter.format(x));
^
ShelbyHarms_3_03.java:42: error: variable area might not have been initialized
JOptionPane.showMessageDialog(null, formatter.format(area));
^
2 errors
Am I not formatting the decimal format right?
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Sep 13, 2014
package progProject5;
// Implementation of single linked list.
public class SingleLinkedList<E> {
private Node<E> head = null;
private int size = 0;
// Methods
[Code] ......
I am in learning process and I know its very basic question but I got stucked at addAfter() where I need to insert the node after the given node.
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Apr 10, 2014
I'm having trouble formatting my output and issues with the decimal places. Here's my code:
import java.util.Scanner;
import java.text.DecimalFormat; // Imports DecimalFormat class for one way to round
public class lab3 {
public static void main(String[] args) {
String heading1 = "Hour", heading2 = "Distance Traveled";
int timeElapsed, hour, speed;
[Code] ....
And here's my output (Click on the image since it's pretty small):
javaIssues.png
Issue:
1) The Hours 2 and 3 aren't aligned to 1.
2) The 80 and 120 in Distance Traveled have 6 decimal places when it should not have decimals.
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Jul 27, 2014
I'm trying to build a program that contains the ability to:
(1) insert new node at head,
(2) print out contents of the list in order,
(3) remove first node from head,
(4) remove last node from tail,
(5) find a target value,
(6) give total number of occurrences of a target value, and
(7) give total number of items in list.
The areas I'm struggling with implementing are: (
- remove from tail - I know how to find the final node but I can't quite figure out how to set it to null since its initial type is an integer.
- find a target value - how to make the parameters quite workout so the user can simply input an integer value.
- The solution is probably really simple but I can't figure out how to print out the results of these methods when I call them.
public class Node
{
private int data;
private Node link;
// Node Constructor 1
public Node()
{
data = 0;
link = null;
[code]....
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Oct 14, 2014
I am having some issues with this code its a a DB generator that creates tables and populates them. There seems to be no compiler errors, but there is a runtime error. I have added the error and the code below :
Runtime error:
Exception in thread "main" java.sql.SQLException: [Microsoft][ODBC Driver Manager]
Data source name not found and no default driver specified
at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6964)
[Code] .....
My Code:
MakeDB.java
import java.sql.*;
import java.io.*;
public class MakeDB {
public static void main(String[]args) throws Exception {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
[Code] .....
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Jan 30, 2014
I have programmed a Router class which has two methods, receive and send.In receive method it receives the plain text from the server through port 2000.Its now all cool.In send method it sends the message to a client through the port 2001 but at the client i get an exception
connection refused:connect
import java.io.*;
import java.util.*;
import java.net.*;
import java.sql.*;
class Router {
String str;
public void receive()
[code]....
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Nov 5, 2014
I m new to programming and am working on the college project. I have MySQL 5.6.20, Eclipse Kepler and Apache Tomcat 7.0.54. I m trying to retrieve the whole table from MySQL schema into a jsp. All the possible things i can do, i have already tried, but none of them are working.
The following attachment contains the whole project. I have my sql connection code in Sample.java file, which i want to get working in Fetch.jsp on the Submit button click. But it shows the tomcat error as localhost:8080/Sample HTTP Status 404-/Sample ; type Status report; message /Sample; Description The requested resource is not available.
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
[Code] ....
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Jul 19, 2014
I am trying to insert a record to a table in my database . I used the same syntax for 2 tables, one does work and the other does not work . I could not find any explanation for this error
"INSERT INTO CustomerRecord (Name, Number, Adress)"
+" VALUES(?,?,?)"; //first table working well
ps.setString(1,r.getCustomerName());
ps.setString(2,r.getCustomerNumber());
[Code] ....
For some reason one does work but the other does not work it says syntax error near order (table name). I am using sqlite db ...
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Apr 16, 2014
I have a superclass used for all the other entity
@MappedSuperclass
public abstract class BssStandardEntityLaravel extends BssStandardEntity
implements InterfacciaBssStandardEntity, Cloneable{
private static final long serialVersionUID = 1L;
@Column(name = "created_at", nullable=true)
@Temporal(TemporalType.TIMESTAMP)
protected Date created_at = new Date();
[Code] ....
When i try to read some data with a JPA controller, this error is raised:
Persistent class "com.bss.libbssabstract.database.entity.BssStandardEntityLaravel" has no table in the database, but the operation requires it. Please check the specification of the MetaData for this class.
org.datanucleus.store.rdbms.exceptions.NoTableManagedException: Persistent class "com.bss.libbssabstract.database.entity.BssStandardEntityLaravel" has no table in the database, but the operation requires it. Please check the specification of the MetaData for this class.
at org.datanucleus.store.rdbms.RDBMSStoreManager.getDatastoreClass(RDBMSStoreManager.java:702)
[Code] ....
It requires BssStandardEntityLaravel table like a normal entity. I used the same entity package in other applications and it works perfectly. Why this error is raised?
I use jpa2.1.0 and datanucleus to enhance classes
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Nov 9, 2014
I have been trying to make a football league table in java based on text input and output. I want to to know if i have done task 1 right if not could you
Task 1. Design and implement classes SportsClub (abstract class), FootballClub.Classes should include appropriate methods and hold information about name of the club,its location and various statistics about the club. FootballClub should include statistics such as how many wins, draws and defeats an instance of it has achieved in the season, the number of goals received and scored. The number of points that a club currently has, and number of matches played.
Task 2. Implement a class PremierLeagueManager which extends interface LeagueManager. PremierLeagueManager class maintains a number of football clubs which play in the premier league. The class should create a menu based on text input and give the user the choice of:
• Create a new football club and add it in the premier league.
• Delete (relegate) an existing football club from the premier league.
• Display the various statistics for a selected club.
• Display the Premier League Table
Here is my code for Task 1:
public abstract class SportsClub {
int position;
String name;
int points;
int wins;
int defeats;
int draws;
int totalMatches;
[code]....
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Jul 15, 2014
I am still having trouble with printing an amortization table for my program. This is the example the professor gave us and our program has to print exactly like this:
Please enter the amount of the loan (a number less than $1,000,000.00) 1000.00
Please enter the annual interest rate (between 2.0 and 15.0 inclusive) 10
Please enter the term of the loan (a number of years between 1 and 30 inclusive) 1
Your monthly payment is 87.92
| INTEREST | PRINCIPAL
MONTH 1 : 8.33 79.58
MONTH 2 : 7.67 80.25
[code]....
So far I have it so it works up to the table. How to get it to loop so it will print each month with the principal and interest. This is the part im having trouble with:
double principal = amount;
double principalPaid;
double interest;
double totalInterest;
double balance = amount;
[code]....
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Apr 16, 2014
i want to write a program that manages my personal time table.
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Oct 14, 2014
This is my program
import java.util.Scanner;
import java.text.DecimalFormat;
public class Lab6 {
public static void main(String[] args) {
int F;
double C = 0;
[Code] ......
output
0 1 2 3 4 5 6 7 8 9
0 degree Fahrenheit equal to :-00.00 degree Celsius
1 degree Fahrenheit equal to :-00.00 degree Celsius
2 degree Fahrenheit equal to :-00.00 degree Celsius
3 degree Fahrenheit equal to :-00.00 degree Celsius
4 degree Fahrenheit equal to :-00.00 degree Celsius
5 degree Fahrenheit equal to :-00.00 degree Celsius
6 degree Fahrenheit equal to :-00.00 degree Celsius
7 degree Fahrenheit equal to :-00.00 degree Celsius
8 degree Fahrenheit equal to :-00.00 degree Celsius
9 degree Fahrenheit equal to :-00.00 degree Celsius
I don't know why the program is not calculating the C degree ?
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Apr 30, 2015
I'm getting ready to code a program that takes record of items loaned and return in a table. I want more than one user to access the program to be able to update the data in the table. For instance, if one user added 5 new items to the table, all other users would be able open the program to see a modified table with 5 new items. Was looking for some advice and was wondering if implementing a database would work best.
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May 22, 2014
how I would achieve the concept of saving the contents of a JTable, so even after program restarts, the table would retain the data. I am developing a utility that will be a password storage book. The user enters passwords and they are stored in a JTable. Currently, the table resets whenever the program is restarted, however I would like it to keep it's data. URL....
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Mar 15, 2014
Budget program. Here is my situation, I have 2 tabs in a GUI, one tab adds a transactions when the add button is clicked, and in the other tab displays a table showing all the transactions. In my code, I want it so that when the user chooses a deposit(combo box variable name = cbType, indexnumber for deposit is 0) it will add to the total and when the user chooses withdraw(index number is 1) then it will subtract it from the total. Here is the code.... (note as well, the code also adds a new row to the table)
//add button clicked
private class BtnAddActionListener implements ActionListener {
public void actionPerformed(ActionEvent arg0) {
((DefaultTableModel)table.getModel()).addRow(new Object[]{
cbMonth.getSelectedItem() + "/" + txtDay.getText() + "/" + cbYear.getSelectedItem(),
cbCategory.getSelectedItem(),
[Code] .....
So when I tested the program with 2 transactions, the first transaction was a deposit and the 2nd transaction was a withdraw. The end product was that both amounts were subtracted from the total. When I did a withdraw first and a deposit second, the amounts were both added together.
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Mar 23, 2015
How to define Cell in the table by table event?
I need to process one component drag to the table. I misunderstand, how I can see to which Cell fall the component. I tried to use Event and Mouse event handlers in my custom Cell, but they do not work. I can copy the drag event to the table and table handles it, but how to get needed Cell I cant understand.
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Mar 13, 2014
This is my codes in a button that if I click it . that information will send to Jtable but the problem is the jtable is in another frame so how can i connect this ?
DefaultTableModel model = (DefaultTableModel)
new admin().tableBagtags.getModel();
if (txtName.getText().equals("")) {
JOptionPane.showMessageDialog(null, "Please fill out all fields.", "Error!", JOptionPane.ERROR_MESSAGE);
[Code] .....
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Apr 29, 2014
I'm trying to add some mysql table columns to JSF table. And I'm getting error:
/index.xhtml: The class 'logon.User' does not have the property 'description'.
User.java
package logon;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
[Code]...
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Oct 14, 2013
I am screwing around with mouse listeners so i decided to make a basic paint program. It works fine but when it draws more than 100 circles it errors out. i know why its doing it (its because i set the array to 100) but my question is how to make it so it has not limit in the array.
Here is the code
public class PaintProject extends Applet {
int numClicks = 100;
int numCicles;
int xCoord[];
int yCoord[];
boolean paint;
[Code] .....
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Apr 25, 2014
Ok, so the program we are supposed to do is to create implement a employee class then create a main tester class that can accept user inputs for 5 employee names, salaries, and performance rating. After that, we have to input code to calculate a provided raise amount, then print out the array with the updated raises. I have completed the program with no syntax errors, but it doesn't do anything. not even a screen comes up on my end to accept user inputs. I know its something basic, but what am i missing
Employee class
public class Employee
{
private String employeeName;
private int salary;
private int performanceRating;
[Code] ....
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Jan 20, 2015
Iam getting this error at run time while using this command "java mypack.Accountbalance". I have compiled this source code and got its class file that I have put in mypack package but now its showing this error ..
Here's the code :
package mypack;
class Balance
{
String name;
double bal;
Balance(String n ,double b)
[Code] .....
Error:
exception in thread "main" java.lang.NoClassDefFoundError: mypack/Ba
at mypack.Accountbalance.main(Accountbalance.java:25)
used by: java.lang.ClassNotFoundException: mypack.Balance
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Dec 23, 2014
i wrote this program:
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public static void main(string[] args)
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}
}
Then i saved this file with name hellojava.java(notepad) in C drive in separate folder c:myjavaapp(not in c:java folder).
When I am compiling(with javac hellojava.java) it shows following error:
cannot find symbol public static void main(string[] args), and also says package system doesnot exists system.out.println("hello java");
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