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我在Java中的初學者,我試圖運行下面的代碼:異常錯誤的遊戲代碼
package Happily.Insane.Rain;
import java.awt.Canvas;
import java.awt.Dimension;
import javax.swing.JFrame;
public class Game extends Canvas implements Runnable {
private static final long serialVersionUID = 1L;
public static int width = 300;
public static 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) {
System.out.println("Running...");
}
}
public static void main(String[] args) {
Game game = new Game();
game.frame.setResizable(false);
game.frame.setTitle("Rain");
game.frame.add(game);
game.frame.pack();
game.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
game.frame.setLocationRelativeTo(null);
game.frame.setVisible(true);
game.start();
}
}
有錯誤:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
at Happily.Insane.Rain.Game.main(Game.java:47)
我該如何解決這個問題?
你爲什麼不告訴我們第47行是....? –
@MohammadS。實際上,第47行的錯誤是** not **。它在第13行:http://ideone.com/qaGVsA – ComFreek
您不僅是Java的初學者,而且還是編程概念的初學者。你有意編寫一個擴展Canvas的類,並實現Runnable,同時在構造時另外實例化一個JFrame? Brrr ....(更不用說編譯器錯誤了,你應該在執行之前閱讀。) – Seelenvirtuose