Need some help

Question

Okay so im trying to make a flappy bird like game but i cant get the background to change to black if theres any other errors please tell me how to fix those too thank you heres the code
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;

import java.awt.image.BufferStrategy;

import javax.swing.JFrame;

public class Flappy <BufferStrategy> extends Canvas implements Runnable{

public static final int WIDTH = 640,HEIGHT = 480;
private boolean running = false;
private Thread thread;

public Flappy(){
Dimension d = new Dimension(Flappy.WIDTH,Flappy.HEIGHT);
setPreferredSize(d);
}

public synchronized void start() {
if(running) return;
running = true;
thread = new Thread(this);
thread.start();

}

public synchronized void stop() {
if (!running) return;
running = false;
try {
thread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}

}

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

flappy.start();
}

@Override
public void run() {
int fps = 0;
double timer = System.currentTimeMillis();
long lastTime = System.nanoTime();
double ns = 100000000 / 60;
double delta = 0;
while(running){
long now = System.nanoTime();
delta+= (now - lastTime)/ ns;
lastTime = now;

while(delta >= 1){
update();
render();
fps++;
delta--;
}

if(System.currentTimeMillis() - timer >= 1000){
System.out.println("FPS: " + fps);
fps = 0;
timer+=1000;
}
}

stop();
}
private void render() {
Object bs = getBufferStrategy();
if(bs == null) {
createBufferStrategy(3);
return;

}

Graphics g = ((j

Answer 1

heres the secconed part ava.awt.image.BufferStrategy) bs).getDrawGraphics();

g.setColor(Color.black);
g.fillRect(0, 0, Flappy.WIDTH, Flappy.HEIGHT);

g.dispose();

}

private void update() {

}

}