I haven't really worked with Swing at all in Java. I'm experimenting with it. I want to make a set layout that the size can't be changed. I've seen alot of things suggesting to use `Layout managers` to add multiple `JPanels` into a `JFrame`. 

However, all the tutorials I've seen involving layout managers say it allows for the user to resize the screen. The layout I want has a rectangle going along the left hand side, a thin rectangle going along the bottom, and a third rectangle taking up the rest of the space. I attempting it using an Absolute layout but it just doesn't want to work for me.

```
import java.awt.Color;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

public class Test extends JFrame {

    public Test() {
        JPanel rect1 = new JPanel();
        rect1.setBounds(101, 650, 900, 50);
        rect1.setBackground(Color.RED);
        getContentPane().add(rect1);

        JPanel rect2 = new JPanel();
        rect2.setBounds(0, 650, 100, 1000);
        rect2.setBackground(Color.BLUE);
        getContentPane().add(rect2);

        JPanel rect3 = new JPanel();
        rect3.setBounds(101, 700, 900, 950);
        rect3.setBackground(Color.GREEN);
        getContentPane().add(rect3);

       setTitle("TEST");
       setSize(1000, 700);

       setLocationRelativeTo(null);
       setDefaultCloseOperation(EXIT_ON_CLOSE);        
    }

    public static void main(String[] args) {

        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                Test ex = new Test();
                ex.setVisible(true);
            }
        });
    }
}

```

Can someone help me properly make three Jpanels in a Jframe in this layout (all with different colors)?