Question

我有这个程序：

package com.systino.drzzle;

import java.awt.Canvas;
import java.awt.Dimension;
import java.awt.image.BufferStrategy;

import javax.swing.JFrame;

import com.sun.prism.Graphics;
import com.sun.prism.paint.Color;

public class Game extends Canvas implements Runnable {

    private static final long serialVersionUID = 1L;
    public static int width = 300;
    public static int height = width/16*9;
    public static int scale = 3;

    private Thread thread;
    private JFrame frame;
    private boolean running = false;

    public Game () {
        Dimension size = new Dimension(width*scale, height*scale);
        setPreferredSize(size);

        frame = new JFrame();
    }

    public synchronized void start () {
        running = true;
        thread = new Thread(this, "Display");
        thread.start();
    }

    public synchronized void stop () {

        running = false;
        try {
            thread.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }


    public void run () {
        while (running) {
            update();
            render();
        }
    }

    public void update () {

    }

    public void render () {
        BufferStrategy bs = getBufferStrategy ();
        if (bs == null) {
            createBufferStrategy(3);
            return;
        }

        Graphics g = (Graphics) bs.getDrawGraphics();
        g.setColor(Color.BLACK); //Error is shown here..
        g.fillRect(0, 0, getWidth(), getHeight());
        ((java.awt.Graphics) g).dispose();
        bs.show();
    }

    public static void main (String args[]) {
        Game game = new Game();
        game.frame.setResizable(false);
        game.frame.setTitle("Drizzle");
        game.frame.add(game);
        game.frame.pack();
        game.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        game.frame.setLocationRelativeTo(null);
        game.frame.setVisible(true);

        game.start();
    }
}

编译器抱怨Graphics.setColor是未定义的方法。

我已导入BufferStrategy以及Graphics和Color。

我需要导入其他东西吗？

我正在使用Eclipse第2版（4.4.2）

Answer 1

我删除了导入com.sun.prism.paint.Color并且它有效，不知道为什么我希望它有所帮助。

g.setColor（Color.BLACK）无法编译 - 未定义的方法

1 个答案: