Changing Image Orientation While Saving To File
Jul 30, 2014
I get a Base64Encoded image string (GIF format) from an external system. While reading the byte array and saving the image to file, the image gets saved in landscape orientation. The code snippet is below.
String image = "R0lGODdhCAcgA=";
Base64Coder decoder = new Base64Coder();
byte [] decodeBytes = decoder.decode(image.getBytes());
ByteArrayInputStream stream = new ByteArrayInputStream(pngArray);
BufferedImage bImage = ImageIO.read(stream);
File label = new File("C:/labels/test.gif");
ImageIO.write(bImage, "gif", label);
I want to save the image in portrait orientation. Is there a way to do that?
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Jul 30, 2014
What I am trying to do is save the the content drawn to my screen as an image. The following code is my render method and although I know how to use it, I don't fully understand the classes and how they work with is making this difficult.
public void render() {
BufferStrategy bs = this.getBufferStrategy();
if (bs == null) {
createBufferStrategy(3);
return;
[code]....
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May 23, 2014
If you look at line 74 you will see my actionPerformed method where I want to switch the icon displayed on the JButton. I know I still have to add the images to the button however I am running into a few issues here.
Therefore my main question is, am I even approaching this problem correctly? In my next class it will be vital that I can decipher what each icon is display on the JButton. I am working on programing A* but I have to get everything talking first.
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class Screen implements ActionListener
[Code] ....
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Apr 22, 2015
In my program one of the panel has a background image and I need that background image to be updated/refresh or changed whenever the panel reaches certain number of clicks
here's the code
Constructor/gui
import java.awt.*;
import javax.swing.*;
import javax.swing.text.*;;
public class demo {
JFrame frame = new JFrame ("Idle Game Test!");
JPanel backGroundPanel = new JPanel ();
[code].....
also is there other way to access those static variables? the way i implemented them works but i do think there are other ways that are more suitable or better but i cant figure out.
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Oct 7, 2014
I am trying to create a virus simulation program. The program is supposed to just be a map of the world where the user can click any country in the world to specify where they want their virus to start, specify how transmittable the virus is, and be able to see how the virus spreads through the world by seeing a change in color throughout the world,
I want the world map to initially start out with a very light yellow, and as areas of the world slowly start to get more and more infected by the virus, I want those areas on the map to start changing to a very dark red (going from a light yellow, through shades of orange and red, to dark red).
So, the main idea of this is to have a program that displays an image where certain parts of the image will slowly change color during the runtime of the program. I obviously know how to change colors of certain parts of a window or even an image, but this is very very detailed and advanced but how to even start this.
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Oct 1, 2014
I am learning FileIO and I am having an ArrayIndexOutOfBoundsException for the following code and I am unsure why...
import java.io.*;
public class ArrayWriter {
public static void main(String[] args) {
PrintWriter fout = null;
int[] data = new int[10];
for(int i = 0; i<data.length; i++) {
data[i] = (int)(Math.random() * 101);
[Code] ....
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Oct 27, 2014
I was able to create the txt file. How to get it to output my code. I know it's an object and it is a way to save data.
package multiplicationFile;
import java.util.Scanner;
import java.io.*;
public class Multiplication {
public static void main(String args[]) throws IOException {
PrintWriter outF = new PrintWriter("multiplications.txt");
[Code] ....
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Jan 21, 2014
I am trying to save the data a person enters to a file. See code below. It is compiling however the file created only shows largest =89, i want the file to show all the data a person enters.
import java.util.*;
import java.io.*;
public class LargerOfThree3{
public static void main(String args[]){
Scanner in = new Scanner(System.in);
[Code] ...
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Apr 16, 2015
I have a file that has the following text in it:
# Main configuration file for DEDServer
# Starting resource values
startingGold=1000000000
startingElixir=1000000000
[Code] ....
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Dec 7, 2014
Everything compiles but doesn't work like it should. What the idea is, is to be able to add class personnel objects and have them saved in a file, so that later on i would be able to see them.
Back to my problem: When i create a new "Personnel" and try to run Write and read, to see if my new "Personnel" is added to the list, it's not there at all... what do i do wrong?
import java.io.*;
class Personnel implements Serializable
//No other action required by Serializable interface.
{
private long payrollNum;
private String surname;
private String firstNames;
[Code] ....
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Jul 5, 2014
I wish to print the content of a JTextArea. I know I can do this with textarea.print(). However, I wish to print in a different font, font size and orientation from that of the JTextArea itself. I have been able to change the orientation by setting print attributes
PrintRequestAttributeSet printAttributes =
new javax.print.attribute.HashPrintRequestAttributeSet ();
printAttributes.add(javax.print.attribute.standard .OrientationRequested.LANDSCAPE);
And then using the textarea.print() method that allows me to set attributes. However, I haven't found any way to set the font and font size.
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Dec 4, 2014
I have created this project and want to be able to add new members to my members arraylist, store the input in a .txt file and load the new members after closing and opening the program.
[URL] ....
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Mar 8, 2014
My code's not working and I don't know why. I'm trying to read numerical values from a file and saving all instances where a letter is entered instead of a number to a string to be referenced as an error at a later point on in the code. However, there's an error and like I've stated before, I don't know what caused it.
public static void validateData() throws IOException{
File myfile = new File("gradeInput.txt");
Scanner inputFile = new Scanner(myfile);
for (int i=0; i<33; i++){
if(inputFile.hasNextDouble()){
double d = inputFile.nextDouble();
if (d<0||d>99999){
[Code] ....
This is the error that returns.
Exception in thread "main" java.util.NoSuchElementException
at java.util.Scanner.throwFor(Scanner.java:838)
at java.util.Scanner.next(Scanner.java:1347)
at Paniagua_Grading.validateData(Paniagua_Grading.java:29)
at Paniagua_Grading.main(Paniagua_Grading.java:6)
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Dec 24, 2014
I had string url for image in mysql database and I want show image in mu jsp file bu I can't.
<c:forEach var="urun" items="${listUrun.rows}">
<tr>
<td><c:out value="${urun.kitapresim}" /></td>
<img src="<c:url value="${urun.kitapresim}" /> " width="270" height="190"/>
URL...
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Jan 28, 2014
I need to find the Winner using Object Orientation logic I have my old logic from my Tic Tac Toe game but it is not Object Orientated. So I want to convert it and add that code to my GUI Tic Tac Toe. I need to return a winner or tie.
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Jun 7, 2014
JFrame parentFrame = new JFrame();
File f12=new File("E:
ewfile.txt");
JFileChooser fileChooser = new JFileChooser();
fileChooser.setSelectedFile(f12);
fileChooser.setDialogTitle("Specify a file to save");
int userSelection = fileChooser.showSaveDialog(parentFrame);
[code]....
I want to save selected text file as html file in target directory....
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Jul 12, 2014
I'm trying to save a picture from byte arrays using RandomAccessFile. The file appears but doesn't open (like its corrupted).
I'm using the bittorent protocol which gives a SHA-1 hash that I compare all the bytes with to verify the data. All the bytes pass the hash check and all the hashes are checked. So I'm pretty sure I'm getting all the bytes correctly.
Is there anything I can do that could tell what's going wrong?
public RUBTClient(final TorrentInfo2 tInfo, final String outFileName) {
...
this.outFileName = outFileName;
File destined = new File(outFileName);
try {
destined_file = new RandomAccessFile(destined, "rw");
destined_file.setLength(tInfo.file_length);
} catch (FileNotFoundException e1) {
[Code] .....
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Apr 14, 2015
I am simulating a game. This involves creating two Player objects(either HumanPlayer or ComputerPlayer), a TheBoard object, a TheGame object and a TheGameManager object. In the TheGameManager, i am trying to get it so that i can save the two Player objects, the TheBoard object and the TheGame object in current use at some point in the game and then load them later at some point. However, after debugged, i have found that it doesnt like the writeObject() method and skips and sends an exception up.
My TheGameManager class has the following fields:
public class TheGameManager implements GameManager {
private Player player1;
private Player player2;
private TheBoard currentBoard;
private TheGame currentGame;
//private String[] args;
private int iterations = 1;
[Code] .....
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Apr 24, 2014
Every time I load a txt file into a JTextArea it prints the results to the JFrame incorrectly I notice its mainly the white spaces this is happening to. I have tried a few ways to remedy this problem but it still keeps occurring? I've tried append() read() also setText() even Scanner. I have enclosed a picture of my GUI and my txt file I am using.
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;
import javax.swing.JFrame;
import javax.swing.JTextArea;
[Code] ....
Attached image(s)
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Jul 10, 2014
I am starting to learn java , If suppose we write a simple hello world program
class helloWorld
{
public static void main(String args[])
{
System.out.print("Hello World !");
}
}
And save this as test.java.Now after compiling it a helloWorld.class file is generated.But if we compile the same after adding "public" in front of 1st line, it throws error.
public class helloWorld
{
public static void main(String args[])
{
System.out.print("Hello World !");
}
}
but then changing the file name to the name of the class i.e. helloWorld.java, corrects the error.
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Jul 26, 2014
I'm trying to change the value of bricks in my save file and for some reason it can't read the information.
public void addRecords(int brick, int log, int stone, int house){
x.format("%s%s
%s%s
%s%s
%s%s", "brick", " "+brick, "log", " " +log, "stone", " "+stone, "house", " "+house);
}
This writes information to my files. ^
public void addResource(String resource, int amount){
openFile();
readfile check = new readfile();
switch(resource){
case "brick":
[Code] .....
In my case "brick", It doesn't set the value when I try to read it. Here is the readResource method.
public int readResource(String resource){
System.out.println("Looking for " + resource);
String res = resource;
openFile();
while(x.hasNext()){
[Code] ....
Short version:
brick = check.readResource("brick");
This doesn't set brick to any value.
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Dec 23, 2014
I'm making a karaoke/DJ program for a DJ friend and one of the features she wants is the ability to change the pitch of a song (some singers ask for this).
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Feb 9, 2015
So here we go with my problem:
- from the main class will arrive three variable (String name_used, int level_choose, int level_result)
I have a .txt file with this kind of formatting:
mario 1 1 0 1 0 1
carlo 0 0 0 1 1 0
...
Where I use 1 and 0 in the main for write if the level (you see that the numbers are always sixr? are egual to six level existing) BEFORE is done correct or wrong
- when in the main a user make a level a feedback coming back from the class level saying if the user made the count correctly or wrong. and i wanna replace the value (1 or 0) in the txt file with the new level result.
So i have all what i need as parameters i think.
name_used to look for the correct line in .txt file with .indexOf
level_choosed to go throught the correct index of that line
level_result (1 or 2) to be replaced with the existing one
Java Code:
public void salvaRisultati(String name_used, int level_choosed, int result_of_level) throws FileNotFoundException{
}
} mh_sh_highlight_all('java');
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Feb 25, 2014
how can we rename the scanned image file from scanner which is by default scan_01is their any api which can rename the scanned o/p file
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Sep 8, 2014
how to change my jar file's icon with an image?
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Sep 30, 2014
I already done my program with images on it but when i convert it to exe , the images is not appearing.
Usually my images are located at documents netbeansprojectprojectimage.jpg
When i run the code on netbeans the images are appearing but when i convert it to exe or jar file run on a computer without netbeans.. images is not appearing ...
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.ImageIcon;
class Phonebook extends JFrame {
private static final int WIDTH = 430;
private static final int HEIGHT = 200;
public Phonebook()
[Code] ....
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