Question

So, I;m following a tutorial and I followed it exactly but when I test, it throws a

Exception in thread "main" java.lang.RuntimeException: Uncompilable source code -   constructor Main in class spritesheet.Main cannot be applied to given types;
  required: java.awt.Color
  found: no arguments
  reason: actual and formal argument lists differ in length
at spritesheet.Main.main(Main.java:48)
Java Result: 1

error!

This is my code:

package spritesheet;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;

public class Main extends JFrame {

BufferedImage sprite;
  private final Color Color;

public Main(Color white){
    setSize(800, 600);
    setVisible(true);
    setResizable(true);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setLocationRelativeTo(null);
    setBackground(Color=white); 
    init();
}


private void init(){
    BufferedImageLoader loader = new BufferedImageLoader();
    BufferedImage spriteSheet = null;
    try {
        spriteSheet = loader.loadImage("spritesheet.png");
    } catch (IOException ex) {
        Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
    }
    SpriteSheet ss = new SpriteSheet(spriteSheet);

    sprite = ss.grabSprite(0, 0, 16, 16);
}

@Override
public void paint(Graphics g){
    g.drawImage(sprite, 100, 100, null);
    repaint();

}

public static void main(String[] args) {
    Main Main = new Main();
}
}

This code aims to display a still image on a white background however it either throws an error or shows a transparent background. It then bugs out and annoys me. 🙁
What am I doing wrong????

Answer 1

You call your class like this

Main Main = new Main();

But you need to pass a parameter to it because you defined it as

public Main(Color white) { ... }

You could change it to

Main Main = new Main(Color.WHITE);

and

public Main(Color c) {
   setSize(800, 600);
   setVisible(true);
   setResizable(true);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   setLocationRelativeTo(null);
   Color = c;
   setBackground(Color); 
   init();
}

Edit

You can do 2 things now. Either make your Colorvariable static like this:

private static Color Color;

or change your Main constructor to

public Main() {
   setSize(800, 600);
   setVisible(true);
   setResizable(true);
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   setLocationRelativeTo(null);
   Color = Color.WHITE;
   setBackground(Color); 
   init();
}