Servlets :: Submitting Images - Restful API Required?
Mar 8, 2014I am working on an android application that submits images to a servlet, is there any need for me to use restful api ??
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Servlets :: Save PDF And Images From Web Page - Root Directory When Deploying App
Feb 7, 2014I have an app that saves pdfs and images from a web page. The web sections send info to the server elements running in Java. I have hardcoded the path to where the images and pdfs need to be saved but on the server, these paths will be different. I'd prefer to just save them to something like:
whateverMyDeploymentDirectoryIs/files/pdfs
or something. How do I find out what my root directory is so that I can make the path relative instead of hard coded?
JSF :: Display Values Of Selected Checkboxes On Page After Submitting Form
Feb 13, 2014I have the following simple "selectManyCheckbox" specified in my jsf page:-
<h:selectManyCheckbox id="animalsmc" layout="pageDirection" value="#{animalSelectionBean.selectedAnimals}">
<f:selectItem itemValue="1" itemLabel="Lion"/>
<f:selectItem itemValue="2" itemLabel="Tiger"/>
<f:selectItem itemValue="3" itemLabel="Elephant"/>
<f:selectItem itemValue="4" itemLabel="Eagle"/>
<f:selectItem itemValue="5" itemLabel="kangaroo"/>
</h:selectManyCheckbox>
I have the following specified in my bean class:-
private int [] selectedAnimals;
...
public int[] getSelectedAnimals() {
return selectedAnimals;
}
public void setSelectedAnimals(int[] selectedAnimals) {
this.selectedAnimals = selectedAnimals;
}
I would like to know how to display the values of selected checkboxes on the JSF page after submitting the form? I tried outputtext, however it displays the object and not the values. I cannot even frame the outputformat for the same.
Putting Images In GUI / Images In Source File Don't Seem To Be Recognized
Jun 7, 2014This is my class with the GUI:
import java.awt.FlowLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JPasswordField;
[code]....
Eclipse error message:
Exception in thread "main" java.lang.NullPointerException
at javax.swing.ImageIcon.<init>(ImageIcon.java:205)
at GUI.<init>(GUI.java:26)
at Apples.main(Apples.java:7)
i think the problem is to do with my images not being recognised. I put them in my source in User>...>workspace>src which is correct as far as i know. From what i know the images should show up if i look at my src file in eclipse but they dont. I tried changing the file type from .png to .jpg but it makes no difference.
Code Required In Form Of Key Values
May 20, 2014Suppose I have the file in a particular directory with the below conntent starts with the below line -
5/15/2014 2:07:36 PM : 10 - 10 : *** Loading XML file DSH_000001_pos.xml ***
After that the content is shown below.
5/15/2014 2:07:36 PM : 10 - 30 : Loading positions for PERIOD DSH - TRDBOOK +NSCCL :INR - HOUS - (INR).
5/15/2014 2:07:36 PM : 10 - 30 : Loading positions for Exchange Complex NSCCL PERIOD Exchange Complex (INR).
5/15/2014 2:07:36 PM : 10 - 30 : Loading positions for Combined Commodity ANDHRABANK - ANDHRABANK PERIOD Combined Commodity (INR).
5/15/2014 2:07:36 PM : 10 - 30 : Loading positions for PERIOD DSH - CFDTRADING +ASXCC :GBP - HOUS - (GBP).
5/15/2014 2:07:36 PM : 20 - 30 : For <ecPort> ASXCC can't find required associated object <clearingOrg>
[code]....
Changing The Required Pixels Color?
Nov 15, 2014I would like to draw a rectangle around a certain part of an image.
So I wrote this:
Pixel[] pixels = scene.getPixels();
for( Pixel pixel : pixels)
{
if(pixel >= point.getX() && pixel <= (point.getX()+p2.getWidth())
{
pixel.setGreen(150);
}
}
But the error is giving me incompatible types. I would like to set all the pixels at a certain point up to the dimensions of my rectangle and so on. How would I do that?
SOAP Output Required In XML Format
Mar 21, 2014Using the concept of web service (SOAP), I need to have a web service running. The client page will pass an ID to the web service and in return the service will return some values retrieved from the database based on the ID passed, as output. The output so fetched has to be in XML format.
View Replies View RelatedUnexpected Type - A Returned Variable Required
Apr 2, 2014I'm making a Hangman program for Java, here's my code:
import java.util.Scanner;
public class Hangman {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
String answerWord = WordList.getWord();
[Code] .....
The Compiler gives me this only error:
Hangman.java:39: error: unexpected type
displayWord.charAt(i)=userInput.charAt(0);
^
required: variable
found: value
I understand that charAt returns i as a value and not a variable. What do I use to return a variable as I intended?
Use Switch Or If / Else Statement To Filter Out Data Not Required For App
Feb 21, 2015I'm using jsoup to parse a calendar page.
I want to use a switch or if/else statement to filter out the data I don't need for the app. This is by no means anything more than a draft because java is easier to work with than android.
Element table = doc.getElementById("launch_calendar");
Iterator<Element> iterate = table.select("td").iterator();
if(iterate.hasNext()){
for(iterate.hasNext();;){
counter++;
[Code] ....
Swing/AWT/SWT :: Why Negative Offset Of Y Coordinate Required In Program
Feb 3, 2015import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import javax.swing.*;
import java.net.*;
/**
An applet that shows a rotating globe.
[Code] ....
Swing/AWT/SWT :: Can't Get Gridbag Layout Components To Display As Required
May 4, 2014I have quite a specific view for how I want my components layed out. No matter what I try I can get them to display how I want! I'm using three JPanels. There's a main panel that goes inside the tabbed pane. This main panel contains two other panels. The First panel is a gridbaglayout panel, with labels on the left column, and components on the right column. The second panel is underneath the second, and contains a label, and a button beneath it. THis uses a basic box layout, with one component per line. The label doesn't always appear (depends if a component is changed). With everything showing, this is how it looks so far:
However, I want the Labels on the left of the pane. The right hand column should be aligned horizontally and have more space from the labels. Ideally I'd like a gap between the last label/checkbox and the Note label.
This is my current code for the panel/s inside the tabbed pane window.
videoPanel = new JPanel();
applyVidBtn = new JButton("Apply Settings");
applyVidBtn.setVisible(false);
warningLbl = new JLabel("Note. Applying these settings causes a program restart.");
warningLbl.setVisible(false);
[Code] .....
Java Web Start - Deploy Application Including Required Folders And Files
May 30, 2014I developed an application that is accessing some property files. The condition was that the user should be able to modify the content or parameters of those property file.How can I distribute the application using Java web start that also includes those property file in the client side?
View Replies View RelatedError - Could Not Find Required Version Of Java(TM) 2 Runtime Environment In (null)
Jun 30, 2014I have installed and tested j2se jdk8 u5 on my Windows 7 64 bit laptop and successfully tested in Eclipse with a quick Hello World.
JAVA_HOME = C:Program FilesJavajdk1.6.0_25
When I try to install j2ee jdk7 sdk7 I get
Error: Could not find the required version of the Java(TM) 2 Runtime Environment in '(null)'
Add Integers To ArrayList And Prompt User To Delete Specific Numbers Not Required
Jan 21, 2015This program simply adds integers to an ArrayList and then prompt the user if they would like to delete specific numbers that they don't want.
The output that I get when I want to delete numbers like 2 and 4 from 1 2 3 4 5 is 1 2 3 4 5 instead of 1 3 5.
Java Code:
import java.util.ArrayList;
import java.util.Scanner;
public class AL
{
// A regular array like int arr[] has to have its size declare before run-time and it's not dynamic which mean it can not grow or expand on its own.
static Scanner input = new Scanner(System.in);
// You have to use reference types(Integer, Double, Float); not primitive types(int).
[Code] .....
JDBC :: Options Required For DB Schema Password Encryption - Connecting To Backend Database
Jul 9, 2015We currently have an application which uses JDBC to connect to the backend database (DB version - 11.2.0.3 ). The application uses a properties file in which the password for the db schema is hardcoded in plain text format. Due to security restrictions we have been asked to make sure the password is encrypted in the file and no direct access is made to the schema using the plain text password. Best options we can use to make this password encrypted both at Oracle DB side and Java side.
View Replies View RelatedClicking On TextField Will Show Some Required Text Under Text Field
Mar 15, 2015I am trying to run a simple program in which on clicking on the TextField will show some required text under the Text Field .Here is my code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Awt
{
public static void main(String...s)
[Code] ....
I am expecting the on clicking anywhere inside the text field should show me the Text : "Mouse Clicked" . But i am getting this error:
Awt.java:77: error: cannot find symbol
tf.f.setText("Mouse Clicked");}
^
symbol: variable f
location: variable tf of type Awt
1 error
How To Add Images To Program
Dec 14, 2014I just finished a tutorial on youtube that covers the basic java, and now i want to try and make a game / program thing, only problem is that i have never worked with graphics before (i have tried to make ovals, rectangles, and other things with the paint method tho )
I know how to make a jframe and a jpanel, and i feel like i can make a simple "game" (not a complicated one, just a simple one with a guy walking around on the screen) in fact i have already make a such game, where you are a oval walking around on the screen, so thats not really my problem.
My problem is that i want to draw an image on the screen that can walk around instead of the oval, but how to do that. I have made a new project and set up the jframe and jpanel, and my code looks like this:
(main)
import javax.swing.JFrame;
public class main_class {
public static void main(String[] args){
JFrame f = new JFrame();
f.setTitle("title");
f.setVisible(true);
f.setSize(800,600);
[code]...
but once again, i get a blank jframe with no image and no "test" string . How i can display images on the screen?
Scaling Images Using JAI
Sep 25, 2014I have code to convert tiff image to PNG image.I want to scale my PNG image to 800X800 without losing quality.I use the below code but seems doesn't work.Its not resizing the image to specific height and width.
Java Code:
SeekableStream seekableStream = new FileSeekableStream(file);
ImageDecoder imageDecoder = ImageCodec.createImageDecoder(
Constants.TIFF, seekableStream, null);
RenderedImage renderedImage[] = new RenderedImage[imageDecoder
.getNumPages()];
for (int i = 0; i < imageDecoder.getNumPages(); i++) {
[code]...
Images Not Loading
Nov 15, 2011I usually code in PHP, C++ and ActionScript.I'm trying to follow an example of how to add images to a full screen application. What he does is that he adds a JPG background image, and then 4 PNG images. I tried to do it like I always do, by writing the code by myself looking at the book. It didn't work. I searched for errors in the code, changed some things, tried different things, but it didn't work. Then I tried to use his own code, that I downloaded from his website. That didn't work either.. I tried to find another way to add an image, and I can't seem to figure out a way to implement images in any other way into this class that's written in this book.. My Java programming level isn't just high enough.
Here's the code for the file where the images load, downloaded from the authors website (I've modified the brackets and some spaces so that it becomes easier to read):
Java Code:
import java.awt.*;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
public class ImageTest extends JFrame {
public static void main(String[] args) {
DisplayMode displayMode;
[code]....
How To Get Images From Jsoup
May 12, 2014I know how to get the link for the GIF but how do I get the image and use it in java?
View Replies View RelatedChanging JPG DPI Value For Some Images
Sep 25, 2014I am currently working on Java software which resize jpeg images and change DPI also. For JPEG images having app0JFIF node it works fine and the images new DPI is reflected in Photoshop. But if app0JFIF node not exist, I am trying to create a new one and set the DPI value there. Everything is going proper but if I open these images in photoshop it does not reflect new DPI but the size changes.
Java Code:
double dpi_in_inch = 0.393701 * newres;
File file1 = new File(imgName);
image = ImageIO.read(file1);
int wd, hi;
wd = (int) (newsize * dpi_in_inch);
[Code] ...
Using Images As Buttons In Processing
May 5, 2015I'm just wondering whether it is possible to use images as a button in Java. I have two images that I want to use to create a rollover effect, is this possible? And then I would like to reset my java program when the button is clicked, is this also possible?
View Replies View RelatedError When Adding Images?
Jan 16, 2014I have been trying my hand at making 2d top down view games and have found myself repeatedly using the same code so i created a file with all the functions so when it is down i just import the jar and dont have to keep rewriting functions. I have trouble because the background is loaded on the screen and i dont know why as i didn't tell it to load. In fact I set the panels visiblity to false. Both of my classes are in the same package. Why I still get the Image.
Walking Turtle
Java Code: import javax.swing.*;
import java.awt.event.*;
public class turtleWalker extends JFrame{
public static void main(String[] args){
JFrame frame = new JFrame("Walking Turtle");
[code]....
How To Import Many Images Into Array
Feb 24, 2015I am still playing around with decks of cards, and am now trying to implement some visualizations using Applets.
Here is how I enter my deck of cards into an array list: this works just fine:
String[] Suits = new String[]{"S","H","D","C"};
String[] Values = new String[]{"A","2","3","4","5","6","7","8","9","10","J","Q","K"};
ArrayList<String> deck = new ArrayList<String>();
for(String suit : Suits) {
for(String value : Values) {
deck.add(suit+"_"+value);
}
}
The end result of this is an array 'deck' which contains a string representing each of the 52 playing cards. Great.
Now I would also like to use some pictures for future implementations I am working on. I have 52 images (.png, though I doubt it matters) stored in the right place. They are named as "H_5.png", and "S_A.png", for example, just as I named the cards in the previous array. I would like to do something as follows
ArrayList<Image> deckpic = new ArrayList<Image>();
for(String suit : Suits) {
for(String value : Values) {
deckpic.add(getImage(suit+"_"+value+".png"));
}
}
Now of course this doesn't work. The line
suit+"_"+value+".png"
is a string, not the name of a file. How I have previously loaded images is to use something like this:
the_pic = getImage("picture_of_pony.jpg");
but of course I can't use the quotations in my card loop, since I want "suit" and "value" to range and not just be the strings suit and value.
Images Not Displaying Properly
Nov 16, 2014My code:
import javax.imageio.ImageIO;
import javax.swing.*;
import java.io.*;
import java.awt.*;
import java.lang.*;
import java.awt.image.*;
import java.net.URLDecoder;
[Code] .....
I my images (including the one I created) are all 32x32. I'm trying to get a player Icon and have them be on a field of grass. Currently, I just get:
(see Attached)
I don't know where my Images are rendering.
B = blank
. = grass
p = player
.
.
.
.
. p
.
.
b
How To Use Images As Backgrounds For JPanel
May 20, 2014I am trying to use images as my backgrounds for my JPanel.the problem is when I run the program the images don't show at first.T hey start to show after I have switched to another panel and then switch back. Here are my codes
//for loading image
static public Image LoadIcon(String file) {
URL icoURL = windows.class.getResource(file);
Image img = Toolkit.getDefaultToolkit().createImage(icoURL);
return img;
[Code] ......