因此,我正在遵循一个教程,并且我完全按照它进行了学习,但是当我进行测试时,它会抛出一个错误。
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
错误!
这是我的代码:
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();
}
}
此代码旨在在白色背景上显示静止图像,但是它会引发错误或显示透明背景。然后它臭虫出炉,使我烦恼。 :(
我究竟做错了什么????
最佳答案
你这样叫课
Main Main = new Main();
但是您需要向其传递参数,因为您将其定义为
public Main(Color white) { ... }
您可以将其更改为
Main Main = new Main(Color.WHITE);
和
public Main(Color c) {
setSize(800, 600);
setVisible(true);
setResizable(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
Color = c;
setBackground(Color);
init();
}
编辑
您现在可以做两件事。像这样使您的
Color
变量static
:private static Color Color;
或将您的
Main
构造函数更改为public Main() {
setSize(800, 600);
setVisible(true);
setResizable(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
Color = Color.WHITE;
setBackground(Color);
init();
}
关于java - 实际和正式论点,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/10860203/