i have a program that is to store DVD information and when i enter all the information asked it returns no info. I have a DVD inventory file and a DVD extended file.
DVDinventoryprogram class
package inventory2;
import java.util.Scanner;
[Code]....
The main method will drive your program by doing the following:
-Create an array to hold all the individual golfers and par scores (type is Golfer[ ]).
-Prompt the user for a data file containing the Par scores and the player names and score. The format of the input file should look like
Par, 3, 4, 4, 3, 4, 3, 5, 3, 4
George, 3, 3, 4, 3, 4, 2, 3, 3, 4
Paul, 4, 5, 4, 3, 6, 3, 4, 3, 5
Ringo, 3, 3, 4, 3, 4, 2, 4, 3, 4
John, 4, 4, 4, 3, 4, 2, 5, 3, 4
Your program should read the file contents and store the information in your array of Golfers.
Write a java program to store employee information in a linked list, the program should implement the following functions:
The program should display the list of functions, and ask the user to enter the number of function that he/she wants to do, then perform the function as it is required in the previous table.
import java.util.*;
public class Employee {
Scanner in = new Scanner(System.in);
String Name;
String Address;
String Department;
int ID;
int Salary;
[code]....
this is my out put
Please choose a number:
1-Add a new employee
2-Update employee's info
3-Remove employee's info
4-Exit
1
Enter name:
Enter address:
2
Enter department:
3
Enter ID:
4
Enter salary:
now:
1- why are not my adding coming out in the output only the Enter name & Enter address ??
2- how can I add names and ID's and information to test that program
I'm doing desktop application about recipes. User can create new recipe, add information. I want to sort recipes, save them somewhere, maybe make it possible to send recipes over network to other users. But I don't know where and how store information about those recipes. I always used to use .txt files for storing needed information, but it seems that it is not the best option.
View Replies View RelatedI've written some code to do this, but it's not working as I expect. This is what the ASCII map looks like:
###################
#.................#
#......G........E.#
#.................#
#..E..............#
#..........G......#
#.................#
#.................#
###################
Here's how I've tried to store the information in a 2D array:
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays;
public class Map {
public void importMap() throws IOException{
BufferedReader br = new BufferedReader(new FileReader("map.txt"));
String line;
[Code] ....
But it's not printing out what I'm expecting. It's printing out:
[[#, #, #, #, #, #, #, #, #], [#, #, #, #, #, #, #, #, #], [#, #, #, #, #, #, #, #, #], [#, #, #, #, #, #, #, #, #], [#, #, #, #, #, #, #, #, #], [#, #, #, #, #, #, #, #, #], [#, #, #, #, #, #, #, #, #], [#, #, #, #, #, #, #, #, #], [
What is printed is much larger than what I've copy and pasted but I can't post it all here.
The error I get is:
Exception in thread "main" java.io.IOException: Stream closed
at java.io.BufferedReader.ensureOpen(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)
at Map.importMap(Map.java:26)
at Map.main(Map.java:44)
The point of this program is to read characters from a txt file and store them into a 2D array. After this has been accomplished, the information is to be printed in the same manner it is read from in the txt file.
Here is the code I have so far:
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class Main
{
public static void main(String[] args) throws FileNotFoundException
[Code] ....
And this is the error I am receiving when trying to accomplish the goal of the project:
Exception in thread "main" java.lang.NumberFormatException: For input string: "############"
at java.lang.NumberFormatException.forInputString(Unk nown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at Maze.<init>(Maze.java:15)
at Main.main(Main.java:20)
What's going on here and how I can correct this?? The information I am trying to store in a 2D array and then print is this:
############
#.#........#
#.#.######.#
#.#....#...#
#.###.*#.#.#
#...####.#.#
#.#.#..#.#.#
#.#.#.##.#.#
#o#......#.#
I am trying to create a GUI with already existing code. My assignment is: Modify the Inventory Program to use a GUI. The GUI should display the information one product at a time, including the item number, the name of the product, the number of units in stock, the price of each unit, and the value of the inventory of that product. In addition, the GUI should display the value of the entire inventory, the additional attribute, and the restocking fee.
Where to start. The text book does not cover a GUI that displays this type of information rather it just displays graphics. I would like to create a separate class that holds the GUI information just to make everything flow better. I have provided my current code below:
Java Code:
// ProductTest.java
// by JakeB
public class ProductTest {
// main method begins
public static void main(String[] args) // begin main {
myGUI display = new myGUI();
display.setVisible(true);
[Code] .....
This is all I have for the GUI. I am at a total loss and I am behind 2 weeks now. I cannot move forward until I am able to get this done and the class ends next week.
I am new to Java an have to Create a program that keeps track of the following information input by the user: First Name, Last Name, Phone Number, and Age. Now - let's store this in a multidimensional array that will hold 10 of these contacts. So our multidimensional array will need to be 10 rows and 4 columns.You should be able to add and remove contacts in the array.
View Replies View RelatedI'm working a an assignment for my IT/215 class and I'm having a little trouble with my arrays. My code compiles just fine but when it comes to displaying the information I've input into my array it doesn't seem to want to and I'm not sure what I'm doing wrong here. On line 136 originally I had [DVDs [count] = count+1]] but it wouldn't compile. I then put line 136 to [ DVDs[count] = new Inventory();] and I think that's were my issue is but I'm not sure....
// Purpose:the purpose of this software is to display inputs as wells as the stocks and price of inputs.
class Inventory
{
private double ItemNumber; //to store Item number
private String ItemName; //to store Item name
private double UnitsInStock; //to store number of units in stock
private double UnitPrice; //to store Unit price
private double InventoryValue; //to store Inventory value
private double TotalInventory; //to store Total Inventory value
[Code] .....
I'm making a program that displays information for "employee" objects of different types. This works with a hierarchy that goes Person→ Employee→ Fulltime/Adjunct, and a driver that tests the inheritance. The Person class is given and only supplies the name, the employee class manages the year hired and the ID, and the types of employee classes manage the salaries.
One object (called staff[2]) is supposed to first be printed with default information and then later updated via set methods. I figured out how to update the name, but I don't know how to update the rest of the information because the employee's name is managed in the Person class and the reset of the information is managed in the less-general classes, and the objects are all in an array of Person.
How do I call the set methods necessary to update more of staff[2]?Output (scroll to see the updating section)
The current year is 2012
Name: Flintstone, Fred
ID Num: BR-1
Year Hired: 2005
Years Of Service: 7
Salary: 65000.12
Fulltime Type Employee
[code]....
i'm trying to write a program that uses an array to store 10 numbers. The numbers should be randomly generated ( Math.random() ), and they should be between 1 and 100 ( 1 and 100 inclusive ). The program should produce an output like the one below:
Element 1 = 23 ( Odd )
Element 2 = 15 ( Odd )
Element 3 = 32 ( Even )
Element 4 - 10 ( Even )
Element 5 - 99 ( Odd )
Element 6 - 1 ( Odd )
[Code]...
I have written code for this but its only showing me 0's after first number can you check whats wrong with my code. my code is.
class even/odd{
public static void main(String[]args){
int y=0;
int z=0;
int[] array= new int[11];
for(int x=1; x <array.length ; x++){
array[x]= (int) (Math.random()* 100);
[Code]...
I work for my local probate court, and one service we offer is email reminders. They fill out a form, it's entered in the system, and they will be notified when something is due. I've been allowed to create a program that will allow me to enter the information from the form to keep track of the attorney's who have signed up.
import java.sql.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
public class Attempt1 {
public static void setConnection() throws SQLException {
Connection conn = null;
Statement state = null;
[Code] ....
The issue I have is the method setQuery. It displays a table with the data entered. Where it currently sits at line 21, it does not display the table, nor does it seem to terminate the program. The goal was to update the table with a few entries, and then display the Jtable. When placed above the setInsert method, it displays just fine, and will reflect the new entries added the next time you start it. I'm still learning Java outside of a classroom environment on my own, so I can only imagine that this is riddled with poor coding, but I just can't seem to figure out why it doesn't display the table after the setInsert method is called. In it's current state, this program is just meant to test functions of SQLite with Java. From there it will be created with a GUI.
I have some questions about a GUI program overlay. My main method in the "actual code" will display information in a huge batch, which is necessary. My questions relate to this feat. I am curious because I need to look this up but I am unsure of the "name" for what I am trying to accomplish.
Can link a JButton as an action item to display information to the JTextFeilds that houses the information needed to populate the data?
If so, what are the necessary steps to ensure that my JButton class and listener are pulling the correct information upon the Event and populate the data to the JTextFeilds?
Would I need a boolean statement that captures all of the methods of "data procurement" within my JTextFeilds underneath that one button?
I am now stuck. I am writing a program that reads information from a data file and runs it through but program. However, I am almost finished with the program, but cannot figure out the last few parts.
public class Storm {
private final double KnotsToMPH = 1.15;
// global user-defined types:
private int beginDate;
private int duration;
private String name;
[Code] .....
I have not attached the data file because it contains a total of 360 lines of hurricane information.
I am attempting to make a heart rate calculator program. Here is a little overview of what I am trying to do. It must use a constructor and get and set methods. It must print heart rate ranges and the user's information(age).
// Use scanner to get inputs
import java.util.Scanner;
// Declare class
public class HeartRates {
private int Age;
private int DayOfBirth;
private int MonthOfBirth;
private int YearOfBirth;
private double MaxHeartRate;
private double MinTargetHeartRate;
[Code] ....
"Create a project called RainFall and a class nameD RainFall. Write a program that stores the total rainfall for each of 12 months into an array of doubles. The program should display total rainfall for the year, the average monthly rainfall, the month with the most rain and the month with the least rain. When outputting the month with the most and least rain, output the name of the month. This is what I have so far.
Scanner keyboard = new Scanner(System.in);
double averageMonthly;
double mostRain;
double leastRain;
int months;
double monthlyRain = 0;
double totalRain = 0;
[Code] ....
I'm playing with vectors for the first time... What I'm trying to do is to allow a user to input one or more integers and store them in a vector for manipulation later on in the program... Here's the portion of the program I'm working with:
Java Code:
package com.itse2317;
import java.util.*;
public class VectorTest
{
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
[code]...
My question is this: Is there any way to move from inputting integers to printing them, without entering a non-integer (for example, hitting enter)? I looked at the API for the Vector class, and either I'm not thinking about the problem the right way to be able to find an answer, or it's just not there.
I have written program for rainfall that will store and give total, average, least and most. The program stores the input of rainfall for each month. However at the end it suppose to print out the month with the least and most rainfall. I am getting this on the print for
The month with the most rainfall: [Ljava.lang.String;@79a7bd3b
and for
The month with the least rainfall: [D@7378aae2[Ljava.lang.String;@79a7bd3b
. What have i done wrong?
Pulling info from a string. I have a string which contains some results such as [United States of America 1 Netherlands 0, Canada 1 United States of America 1, United States of America 3 Russia 1, Norway 2 United States of America 1, Sweden 2 United States of America 4"]. Now based on user input I need to pull the numbers from this string and add them up. So if the user inputs United States of America it would pull 1,1,3,1,4 put that in an array and add it. I know how to sum the array just not sure how to get that information from a string,
View Replies View RelatedI am trying to find the GCD, add, and remove the biggest and smallest fraction, however I am having trouble getting user input into the array and getting the information out of it (Variable f).
Scanner keyb = new Scanner(System.in);
Fraction[] frak = new Fraction[7];
Main_Class
try {
for (Fraction f : frak){ // for each array in frak print f;
System.out.println("Enter Numerator");
int num = keyb.nextInt();
System.out.println("Enter Denominator");
int den = keyb.nextInt();
f = new Fraction(num, den);
[Code] ....
I'm trying to take the information from one 2d char array and put it into another char array but instead of traversing the array left to right I want the new array to be top to bottom.
Example fg would be fh
hi gi
I'm having trouble getting the information from one to the other.
[code]public static char[][] translateIt(char[][] english){
int rows = english.length;
int columns = english[0].length;
char[][] chinese = new char[columns][rows];
for(int j=0; j < columns; j++){
for (int i = 0; i < rows; i++){
//chinese[i][j] = english; this is commented out because it didn't work.
}//Ending bracket of columns for loop
}//Ending bracket of rows for loop
return chinese;
}//Ending bracket of translateIt[code]
I am trying to figure out how to get information back from a different method.
Basically I want to write a program to create a car, but I want to be able to add features based on user our put (V6 versus V8, Color choice, etc), but I want each one to be broken out into their own method but I am unsure of how to call from the main method and return the variable (engineSize = V8, color = blue, etc).
I have a simple display method in a java project as given below:
public void displayInfo() {
for(Student student : studentdB){
System.out.println(student.toString() + "
");
}
I would want to use one of Swing components to display the students instead of displaying them on the stdout. How I could go about calling this method in some Swing components that can display all the students in the studentdb?
import java.util.*;
public class TrafficIncidents {
public static void main(String[] args) {
Scanner s = new Scanner (System.in);
// Array for days
String [][] days = {{"Sat"},
[Code] ....
This is my output:
Day AM PM
--------------------------------
Sat
Sun
Mon
Tues
Wed
Thurs
Fri
5 1 1 2 4 1 0
Basically I want to align the AM traffic incidents under the heading "AM" but am not sure how to accomplish this. I am using separate arrays for all three of these types of information and need the info to line up with their respective titles.
I'm having trouble conceptualizing something. I will post the code, it's works exactly as it should. I create an array and Hash Map to display periodic table of elements information after allowing the user to search by element name or symbol. I want the user to also be able to add elements to the periodic table. I can't really conceptualize how I am going to do that with an array I've already created.
Here's code:
//Create element objects.
//Here is where I create my "elements" array, and where I could like to prompt the user to add elements, if desicred.
Element[] elements = {new Element("Hydrogen", 1, "H", 1.008,1,1), new Element("Lithium",3, "Li", 6.94,2,1)}; //
//Maybe it seems if I prompt the user here to add new element names, symbols, weights, etc, I would be overwriting
[Code] .....
The requirement asked me to write a Java program to read information from the file, display the original information along with the player's average score of the season (one line for each player), and announce who is the highest average-scoring player of the team. But I always only get the highest which show the last player.
Such like the output showed:
Smith 13.0 19.0 8.0 12.0 Player's average: 13.00
Badgley 5.0 Player's average: 5.00
Burch 15.0 18.0 16.0 Player's average: 16.33
Watson Player's average: 16.33
Knox 10.0 12.0 8.0 6.0 Player's average: 9.00
Casler 15.0 7.0 Player's average: 11.00
Winorburg 13.0 14.0 14.0 23.0 20.0 Player's average: 16.80
Morton 4.0 11.0 13.0 Player's average: 9.33
Seeling 16.0 8.0 9.0 11.0 Player's average: 11.00
Tanshi 5.0 13.0 10.0 Player's average: 9.33
The highest average-scoring player is: Tanshi
import java.util.Scanner;
import java.io.*;
public class PA7{
public static void main(String[] args) throws IOException{
String name = null;
[Code] .......