Yoyo_Guru said:I know this is probably a simple question but I want to make a program that uses an animation but don't know how to display an image like a jpeg in a program. I found a couple answers to this online but don't really know what's going on in the code. Would someone mind writing some sample code to display an image and explain what is going on in the code?
Yoyo_Guru said:Thanks a lot :D I had googled it but nothing I found was as succinct as that. Kept on finding irrelevant stuff or stuff that was way more complicated than what I was looking for.
I've wrapped your code in the code tags.Yoyo_Guru said:I'm sorry to bother but I have another question. If I have a class that is supposed to display and image would this code be right for the class?
Code:import java.awt.*; import java.awt.image.BufferedImage; import java.io.*; import javax.imageio.ImageIO; import javax.swing.JFrame; public class Display extends Panel { BufferedImage image; public void ShowImage(String fileName) { try { File input = new File(fileName); image = ImageIO.read(input); } catch (IOException ie) { System.out.println("Error:" + ie.getMessage()); } } public void paint(Graphics g) { g.drawImage(image, 0, 0, null); } static public void main(String args[]) throws Exception { JFrame frame = new JFrame("Display image"); [B]Display display = new Display(); display.ShowImage("C:\\someDirectory\\yourfilename.jpg");[/B] frame.getContentPane().add(panel); frame.setSize(500, 500); frame.setVisible(true); } }
And if it is right how would I use it from the main with an image called "test"
Borg said:I've wrapped your code in the code tags.
To compile your code, you have to have Java in your classpath. You can test this with a DOS window by typing this:
java -version
If that's working, then you should be able to compile and run:
Compile:
In a DOS window, go to the directory where Display.java is located and type this:
javac Display.java
Run:
From the same window and directory, you can now run the program:
java Display
You are very close on the program. Your program runs but there is nothing that calls the ShowImage() method. Also, by creating it as an instance of Panel, it won't even know about the ShowImage() method in the Display class. I've bolded the two lines that I changed in your program and it works as long as you can compile it.
Yoyo_Guru said:Oh, sorry forgot to include declarations of x and y for UI which are each 250. so shouldn't it be at 250,250? and I am trying to get the image from UI displayed on top of the image from display but I can't even if i switch every time the two are used in the main
Yoyo_Guru said:the ui image is 5x5 and the display image is 500x500. The thing is that I want them to overlap. I want the 5x5 image to be printed in the middle of the other image. But the display image is always over the ui instead of the ui being over the display.
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
public class Display extends Panel
{
BufferedImage image;
[B]BufferedImage secondImage;[/B]
public void showImage(String fileName, [B]String secondFilename[/B])
{
try
{
File input = new File(fileName);
image = ImageIO.read(input);
[B] input = new File(secondFilename);
secondImage = ImageIO.read(input);[/B]
}
catch (IOException ie)
{
System.out.println("Error:" + ie.getMessage());
}
}
public void paint(Graphics g)
{
g.drawImage(image, 0, 0, null);
[B]g.drawImage(secondImage, 20, 20, null);[/B]
}
static public void main(String args[]) throws
Exception
{
JFrame frame = new JFrame("Display image");
Display display = new Display();
display.showImage("C:\\someDirectory\\yourfilename.jpg", [B]"C:\\someDirectory\\yourSecondFilename.jpg"[/B]);
frame.getContentPane().add(panel);
frame.setSize(500, 500);
frame.setVisible(true);
}
}Yoyo_Guru said:oh, ok thanks, I tried that but the line
frame.getContentPane().add(panel);
keeps getting an error and says "cannot find symbol symbol: variable panel location: class Display"