Retrieving Values From A JTextField

Jan 18, 2015

I currently building a hotel reservation system, and I'm having issues with retrieving and setting other values from a JTextField.

What I'm trying to do is to retrieve the value that was inputted into a textfield, and then setting that value to a string in another class.

In here, I'm trying to retrieve values from the JTextField:

@Override
public void actionPerformed(ActionEvent event) {
GuestInfo gi = new GuestInfo();
if (event.getSource()==roomView)
{
roomViewFrame.setVisible(true);
roomViewFrame.setSize(1000, 600);

[Code] .....

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Aug 8, 2014

How do I retrieve values of an object?

public Software[] getSoftware(int index){
return software;}

The object is initialized and i get no errors when entering values .. but when i try to print by calling getSoftware I get :

[Ldd1318398project4.Software;@257f6796

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Feb 14, 2015

I'm doing an aggregation exercise that's suppose to find the volume and surface area of a cylinder. What I'm trying to do is pass values from one class, to a second class, and that second class passes values to a third class.

This may be a clearer explanation: The first class is the main program which sends values to the second and third class. The second class is used do calculations for a circle (a pre-existing class from another assignment). The third class grabs the values that the second class calculated and calculates those values with the one that was passed from the first class to the third class. The first class then prints the outcome.

Problem is when the program gets to the third class, it just calculates the value from the first class with the default constructor from the second class. It's like the second class never received the values from the first class. I think I'm missing a step, but I don't what it is.

First Class:

package circle;
import java.util.Scanner;
public class CylinderInput
{
static Scanner in = new Scanner(System.in);
public static void main(String[] args)
{
//user defined variable

[Code]...

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Mar 25, 2015

I have a supermarket checkout line where i have a list of available products on the left and then a basket on the right with the products in. The products are listed in an array, here is the product class

public class Product {
private String name;
private double weight;
private double price;

[Code] ....

with getters and setters excluded, and the list these are put into

public class productList extends DefaultListModel {
public productList (){
super();
}
public void addProduct (String name, double weight, double price, int code){
super.addElement(new Product(name, weight, price, code));

i have the price for each product to be displayed in a text field with the following code

addBasketItem = new JButton();
getContentPane().add(addBasketItem);
addBasketItem.setText("Add >");

[Code] ....

defaultCheckoutList contains my available items and defaultMainList is the basket, with mainTillPrice being the jtextfield.

This works to get the price however it just replaces each time i make a new entry with the price for the next item, i want a total of the price of all the items i have added, but not sure how.

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for example:

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This won't work because playTime is of type double and .getText(); takes a String.

How will i handle this? Id rather not convert from String to Double if its possible.

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I am trying to check to see if the button has anything on it.

Line 81 says incompatible types: JButton cannot be converted to String ')' expected ';' expected

package PA7;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.*;
import javax.swing.*;
import java.awt.event.ActionListener;

[code]...

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I have this code

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How I can retrieve the value of user_id at page userprofile.xhtml?

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May 19, 2014

This program should create a GUI that has 5 classes together on a grid layout. The problem that I am having is that the user input class has the input for kwh, hours, and gallons. I am having problems getting that information from the user input class to the totals class.

user input class:

package applianceutilitycalculator;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Scanner;
import javax.swing.*;

[code].....

The totals class should take the info from the kwh hours and gallons and do the math to get a total and display it in a JTextField(?).

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I want to have a button in my Jsp's labeled "next" that takes me to the next JSP in a certain order. Imagine a book: every time you click next you go to the next page.

Each page is a JSP that is named "page#" where # stands for the number (page1, page2,etc).

I was structuring my app this way: one controller,one controllerhelper,multiple JSPs.

The "next" button in the JSP's would always have the same name as not to overcode in my controllerhelper with too many options for the button that was pressed.

So my idea was to retrieve the name of the current JSP and work the string in order to add a number (page4 turns into page5) and forward it through a requestdispatcher.

That is the problem as I am not able to get the name of the current JSP since the url changes after the first page to the servlet url.

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How to do this <not in sql> .

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I'm trying to run the following java program by using the instructions provided here URL....The program tries to connect to LDAP directory, searches for an objectGUID and returns sAMAccountName...But when I compile the java program I get 19 errors as given below.

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symbol : class string
location : class seek
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[code]....

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Jan 18, 2015

I need to take the users input from 2 boxes and reference that to a sqlite database and populate the fields with the data in the database. I know the database code work.

Here is the code for the "user" form;

Java Code:

import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JTextField;
import java.awt.Font;

[Code] .....

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Mar 31, 2015

I am trying to export data from a jtable to a pdf report but every time i try running the code it gives me this exception:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at GUI.QC_receiving_book.printButtonActionPerformed(QC_receiving_book.java:309)
at GUI.QC_receiving_book.access$600(QC_receiving_book.java:26)
at GUI.QC_receiving_book$7.actionPerformed(QC_receiving_book.java:165)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)

[Code] ....

I tried avoiding the null exception by using the if statement but it didn't work. The row I choose from the table is full meaning there are no empty attributes. and all the data are imported from a mysql database to the table as String so there can't be any casting errors.

This is the part of the source code with the problem and i will also post the printing method. I tried debugging the class and when stepping into the first if statement it opened the jTable.java file and pointed at the getSelectedRow() method and this sentence "variable information not available.source compiled without -g option"

private void printButtonActionPerformed(java.awt.event.ActionEvent evt) {
if(samplesTable.getSelectedRow() >= 0){
int row = samplesTable.getSelectedRow();
System.out.println(row);
for(int x=0;x<samplesTable.getColumnCount();x++){
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[Code] ....

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Mar 30, 2014

I am creating a simple Symptom Checker application. The problem I have is that I'm trying to retrieve user input (JTextField) by comma's using StringTokenizer which contacts the database for a result which matches the user's input (SELECT * FROM DIAGNOSIS WHERE ?, ?, ?) . It successfully finds the correct result however only in a particular format. Not different combinations....

for example, if I enter say within the JTextField: "tearful, nausea, lack of motivation" it will find the result successfully (as that is how it is formatted within the particular column (in the database table) i wish to display a result from) however, if i enter a different combination of these symptoms: "nausea, lack of motivation, tearful" - it will not find any result. I'm very unsure how to make it work regardless of what is inputted first, second or last.

Here is the code:

public void actionPerformed(ActionEvent e) {
try {
String abc = fieldsymp1.getText();
StringTokenizer str = new StringTokenizer(abc);
while (str.hasMoreTokens()) {
str.nextToken((", ")).trim();
 
[Code] ....

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Sep 23, 2014

I need to design, implement, and test a program to input and analyze a name. The program begins by retrieving a user input string from the keyboard. This string is intended to be the user's name. These are the errors we have to search analyze the user input for: No blanks between names firstName and lastName, Non-alphabetic characters in names, Less than two characters in first name, and Less than two characters in last name. Each of these errors must be thrown. All exceptions must be derived from a programmer-defined class called NameException. Each exception should use a detailed message to differentiate among the file types of errors.

This is the format of my NameException class, is the format itself correct? I will fill in the details of each exception I am just wondering if that is how I should set it up.

public class NameException extends Exception {
private String firstName, lastName;
public NoBlanksException(String firstName,String lastName) {
}
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[Code] .....

I was told not to try and catch thrown errors in the main method, would I just create another method in the Driver class to take care of that then?

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'assets/picture2.png'

And so on...

How would I then read from this text file and then create those files using 'new File()'?

Here is my code:

private void getFiles() throws IOException{
files = new File[10];
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int count = -1;

[Code]....

It does print out those files, but it doesn't create them.

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glReadPixels(mapStartX, mapStartY, mapWidth, mapHeight, GL_BLUE, GL_UNSIGNED_BYTE, currentBuffer);
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if (currentBuffer.get(i) != baseBuffer.get(i)) {
//Do nothing
continue;
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This works perfectly fine but turns out to be a real bottleneck, dropping the fps to a third of what it was. Is there any quicker way? All I'm after is speed, I don't even need to show it on the screen if the comparison is made "behind the scene".

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Because at their I will use something request.getAttribute("Attr_Name");

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I enter a value in the text box in one class and want to pass that value to another class in order to compare it and color the cell in a table. In the first class I have

package cege.ui;
 import cege.controller.HtmlController;
import cege.controller.ScreenCaptureController;
...
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;

[Code] .....

How to pass the threshhold from the first to the second class?

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if (stringGQ != null && stringGW != null && stringGP != null){
 stringGQ = gMQ.getText();
stringGW = gMW.getText();
stringGP = gMP.getText(); 
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[Code] .....

Note: This is a small part of my code. when I leave it empty it take the 0 as a value, However, when I write in text field it also take the value of a 0 and the finalTotal is also = to 0.what I'm doing wrong.

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import javax.swing.*;
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[Code] ....

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if (source == jBSofa) {
System.out.println("Sofa");
{
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a visual aspect of it.

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How would I display certain output text if the text entered equaled "text".

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Think about it as "If question = What color is the sky? On submit, display text "Blue". How to implement this.

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