Posts by Soubhik

I didnt know that. I thought windows would automatically convert the file

I notice that this problem happens when I am using bmp (or I rename a bmp file to some other format). So if I draw the image and save it as png or something else, then this problem does not arise.

I guess then Image does not support bmp format.

import javax.swing.JPanel;
import javax.swing.ImageIcon;
import java.awt.Image;
import java.awt.Graphics;
import java.awt.Graphics2D;

class View extends JPanel {
    Image icon1,icon2;
    public View(){
        ImageIcon i1=new ImageIcon(this.getClass().getResource("tile1.png"));//image I drew
        ImageIcon i2=new ImageIcon(this.getClass().getResource("tile2.png"));//image I downloaded
        icon1=i1.getImage();
        icon2=i2.getImage();
    }
    public void paint(Graphics g){
        super.paint(g);
        Graphics2D g2=(Graphics2D)g;

        g2.drawImage(icon1,10,10,null);//this image is not displayed
        g2.drawImage(icon2,200,200,null);//this image is displayed
        }
}

In the above code, I'm simply trying to load some images and display it in the window.

Now, I drew an image using MSPaint and saved it in bmp/png (icon1). And I downloaded another image off the internet in gif/png (icon2). The images are present in the same directory as the code.

BUT when I run the program to display the images, I see that only icon2 is being displayed. icon1 is not displayed.

Why is this so?

The drawImage() method returns a true value on success. However, for the icon1 it returns false and for icon2 it returns true.

Thanks again.

Yes, I'll google them.

Thanks guys. I'll see what I can learn from all this.

New questions!
a> What is static library? What is dynamic library?
b> What is the difference between c code, object code and exe file??
c> What is this linker? How does it work?
d> What does #ifndef HEADER_H statement mean? More specifically, what is HEADER_H?

Hi

Say I want to write a header file as an exercise. It will contain a bunch of functions and some constants.

Q1. I noticed that the standard header files only contain the function prototypes.
a> Where are the actual functions?
b> How do I write a header file such that the actual functions are separately stored?
c> How are these two files connected?
d> What is the advantage of this?

Q2. How do I include this header file in my code? Just the normal #include<>?

Thanks.