SigCont

haydenbech

I making a Swing Java Application and wish to include graphics. My images will not appear. I have a feeling that it has to do with the image itself rather than the code. I am using the following classes:

import javax.swing.*;
import java.awt.*;
import javax.imageio.*;
import java.io.*;

What are the technical limitations of Java ImageIO? I can view the images normally, but they do not appear in my app - would this happen because of a specific type of encoding or file size etc? I have already shrunk the JPGs from a massive size and saved at least one of them as GIF, but no improvement. For some of the images I get an error:

Please verify that you selected a valid image file
Error: [Ljava.lang.StackTraceElement;@744a6cbf

Here is my code:


/*
**	BunnyFieldPanel class
**	by Hayden Bech
**	
**	Controls the graphics for a paddock full of bunnies.
*/

import javax.swing.*;
import java.awt.*;
import javax.imageio.*;
import java.io.*;

public class BunnyFieldPanel extends JPanel{
	private final String PATH = "images/front_bunny_small.jpg";		//path of image
	private Image img;		//image object
	private int x;
	private int y;
 
	public BunnyFieldPanel() throws IOException{
 
		//load image
		img = ImageIO.read(new File(PATH));
		System.out.println("2");
		JLabel jlbBunny = new JLabel("B");
		this.add(jlbBunny);
 
	}
 
	public void paint(Graphics g){
		super.paint(g);
		
		//draw the image
		if( img != null)
			g.drawImage(img,0,0, this);
		
		g.drawString("Hello", 0, 0);
	}

}

haydenbech


/*
**	Graduation Game
**	Version 2 - graphics-capable.
**	by Hayden Bech
**
**	View readme.txt for more information.
*/
import java.util.Scanner;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;

public class Graduation{	
	static BunnyManager bManage = new BunnyManager();
	static Scanner in = new Scanner(System.in);				//Used for keyboard input.
	static String input = "";								//Holds keyboard input.
	static BunnyEvents turn = new BunnyEvents();			//Holds each turn's events.

	public static void main(String args[]) throws IOException{
		/*
		** Main Program
		*/
		
		try{
			//Set up the window
			JFrame f = new JFrame("Graduation");
			f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			//FIELD
			BunnyFieldPanel pnlField = new BunnyFieldPanel();
			f.add(pnlField);
			//MENU
			
			//HELLO
			JLabel jlbHelloWorld = new JLabel("Bunny Game. \rGraphics are coming... \rIt's hard!");
			f.add(jlbHelloWorld);
			f.setSize(400, 400);
			//f.pack();
			f.setVisible(true);
		}
		catch(Exception e){
			System.out.println ( "Please verify that you selected a valid image file");
			System.out.println ("Error: " + e.getStackTrace());
		}
		
		//Do stuff
		help();							//Initially print out a list of commands
		firstTurn();
		do{
			System.out.print("Enter another action: "); 	//Prompt
			input = in.next();								//Get input
			input = input.toLowerCase();					//Fix input
			System.out.println();
			
			chooseAction(input);							//Choose action
		}while(!input.equals("exit"));
	}
        //EXCEPRT ONLY - FUNCTIONS CUT OUT TO SAVE CHARs
}

waheed

Are you allowed to use an IDE? NetBeans has a GUI editor and I remember adding images to a window/form using it.

haydenbech

At this stage I will try anything.

SigCont

Howdy, Stranger!

Categories

Poll

In this Discussion