java.awt.image 找不到_java AWT绘图为什么没有显示图片？

在A类中实例化了一个简易窗口，然后安排在3秒之后显示一张图片，为什么没有出现呢？用了repaint方法没有用classA{publicstaticvolatileintwidth;publicstaticvolatileintheight;publi...

在A类中实例化了一个简易窗口，然后安排在3秒之后显示一张图片，为什么没有出现呢？用了repaint方法没有用

class A{

public static volatile int width;

public static volatile int height;

public boolean isFinished=false;

public A() {

JFrame jf=Frame_Gen.Fr_G("欢迎使用", false, 600, 400);

jf.setSize(600, 400);

jf.setLocation(250, 250);

jf.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

jf.setResizable(false);

//Container c=jf.getContentPane();

width=jf.getWidth();

height=jf.getHeight();

//jf.add(new pic());

Thread t=new Thread(new Runnable() {

@Override

public void run() {

// TODO Auto-generated method stub

try {

Thread.sleep(3000);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

jf.add(new ppp());

}

});

t.start();

}

class ppp extends Canvas{

/**

*

*/

private static final long serialVersionUID = 1L;

public void paint(Graphics g) {

Graphics2D g1=(Graphics2D)g;

super.paint(g1);

Image image=Toolkit.getDefaultToolkit().getImage("C:\Users\Administrator\Pictures\Camera Roll\2.jpeg");

g1.drawImage(image, 0, 0, width, height, this);

}

}

class pic extends Canvas{

/**

*

*/

private static final long serialVersionUID = 1L;

public void paint(Graphics g) {

Graphics2D g1=(Graphics2D)g;

super.paint(g1);

//URL url=A.class.getResource("1.jpg");

//Image image=Toolkit.getDefaultToolkit().getImage(url);

Image image=Toolkit.getDefaultToolkit().getImage("C:\Users\Administrator\Pictures\Camera Roll\1.jpg");

g1.drawImage(image, 0, 0, width, height, this);

}

}

}

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