在JFrame中显示图像

我目前正在学习Java，目前我遇到了一些问题。

I am currently learning Java, and I am stuck with something at the moment.

我一直在寻找一种方法来将图像添加到我的JFrame中。
我在互联网上找到了这个：

I was looking for a way to add an image to my JFrame. I found this on the internet:

ImageIcon image = new ImageIcon("path & name & extension");
JLabel imageLabel = new JLabel(image); 

在将它实现到我自己的代码之后，它看起来像这样（这只是相关部分） ：

And after implementing it to my own code, it looks like this (this is only the relevant part):

class Game1 extends JFrame
{
    public static Display f = new Display();
    public Game1()
    {
        Game1.f.setSize(1000, 750);
        Game1.f.setResizable(false);
        Game1.f.setVisible(true);
        Game1.f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Game1.f.setTitle("Online First Person Shooter");

        ImageIcon image = new ImageIcon("C:\\Users\\Meneer\\Pictures\\image.png");
        JLabel imageLabel = new JLabel(image); 
        add(imageLabel);
        }
}

class Display extends JFrame
{
}

运行此代码时，它不会给我任何错误，但它也不显示图片。我看到一些问题和人有同样的问题，但他们的代码与我的完全不同，他们用其他方式来显示图像。

When running this code, it doesn't give me any errors, but it also doesn't show the picture. I saw some questions and people having the same problem, but their code was completely different from mine, they used other ways to display the image.