Object Class extends JPanel, Won't Appear

I'm making my own object class Diamond for a school project which extends JPanel. I'm not getting any compile-time or run-time errors, but my object won't appear in the JFrame. Any help?

Here's my Diamond class:

import java.awt.*;
import javax.swing.*;
import java.awt.Color;
import java.awt.Container;

public class Diamond extends javax.swing.JPanel
{
    JPanel diamond;
    
    JPanel a1;
    JPanel a2;
    JPanel a3;
    JPanel a4;
    JPanel a5;
    JPanel a6;
    JPanel a7;
    JPanel a8;
    JPanel a9;
    JPanel a10;
    JPanel a11;
    JPanel b1;
    JPanel b2;
    JPanel b3;
    JPanel b4;
    JPanel b5;
    JPanel b6;
    JPanel b7;
    JPanel b8;
    JPanel b9;
    JPanel b10;
    JPanel b11;
    JPanel c1;
    JPanel c2;
    JPanel c3;
    JPanel c4;
    JPanel c5;
    JPanel c6;
    JPanel c7;
    JPanel c8;
    JPanel c9;
    JPanel c10;
    JPanel c11;
    JPanel d1;
    JPanel d2;
    JPanel d3;
    JPanel d4;
    JPanel d5;
    JPanel d6;
    JPanel d7;
    JPanel d8;
    JPanel d9;
    JPanel d10;
    JPanel d11;
    JPanel e1;
    JPanel e2;
    JPanel e3;
    JPanel e4;
    JPanel e5;
    JPanel e6;
    JPanel e7;
    JPanel e8;
    JPanel e9;
    JPanel e10;
    JPanel e11;
    JPanel f1;
    JPanel f2;
    JPanel f3;
    JPanel f4;
    JPanel f5;
    JPanel f6;
    JPanel f7;
    JPanel f8;
    JPanel f9;
    JPanel f10;
    JPanel f11;
    JPanel g1;
    JPanel g2;
    JPanel g3;
    JPanel g4;
    JPanel g5;
    JPanel g6;
    JPanel g7;
    JPanel g8;
    JPanel g9;
    JPanel g10;
    JPanel g11;
    JPanel h1;
    JPanel h2;
    JPanel h3;
    JPanel h4;
    JPanel h5;
    JPanel h6;
    JPanel h7;
    JPanel h8;
    JPanel h9;
    JPanel h10;
    JPanel h11;
    JPanel i1;
    JPanel i2;
    JPanel i3;
    JPanel i4;
    JPanel i5;
    JPanel i6;
    JPanel i7;
    JPanel i8;
    JPanel i9;
    JPanel i10;
    JPanel i11;
    JPanel j1;
    JPanel j2;
    JPanel j3;
    JPanel j4;
    JPanel j5;
    JPanel j6;
    JPanel j7;
    JPanel j8;
    JPanel j9;
    JPanel j10;
    JPanel j11;
    JPanel k1;
    JPanel k2;
    JPanel k3;
    JPanel k4;
    JPanel k5;
    JPanel k6;
    JPanel k7;
    JPanel k8;
    JPanel k9;
    JPanel k10;
    JPanel k11;
    
    public void makeDiamond()
    {
        diamond = new JPanel(new GridLayout(11,11));
        
        a1 = new JPanel();
        a2 = new JPanel();
        a3 = new JPanel();
        a4 = new JPanel();
        a5 = new JPanel();
        a6 = new JPanel();
        a7 = new JPanel();
        a8 = new JPanel();
        a9 = new JPanel();
        a10 = new JPanel();
        a11 = new JPanel();
        b1 = new JPanel();
        b2 = new JPanel();
        b3 = new JPanel();
        b4 = new JPanel();
        b5 = new JPanel();
        b6 = new JPanel();
        b7 = new JPanel();
        b8 = new JPanel();
        b9 = new JPanel();
        b10 = new JPanel();
        b11 = new JPanel();
        c1 = new JPanel();
        c2 = new JPanel();
        c3 = new JPanel();
        c4 = new JPanel();
        c5 = new JPanel();
        c6 = new JPanel();
        c7 = new JPanel();
        c8 = new JPanel();
        c9 = new JPanel();
        c10 = new JPanel();
        c11 = new JPanel();
        d1 = new JPanel();
        d2 = new JPanel();
        d3 = new JPanel();
        d4 = new JPanel();
        d5 = new JPanel();
        d6 = new JPanel();
        d7 = new JPanel();
        d8 = new JPanel();
        d9 = new JPanel();
        d10 = new JPanel();
        d11 = new JPanel();
        e1 = new JPanel();
        e2 = new JPanel();
        e3 = new JPanel();
        e4 = new JPanel();
        e5 = new JPanel();
        e6 = new JPanel();
        e7 = new JPanel();
        e8 = new JPanel();
        e9 = new JPanel();
        e10 = new JPanel();
        e11 = new JPanel();
        f1 = new JPanel();
        f2 = new JPanel();
        f3 = new JPanel();
        f4 = new JPanel();
        f5 = new JPanel();
        f6 = new JPanel();
        f7 = new JPanel();
        f8 = new JPanel();
        f9 = new JPanel();
        f10 = new JPanel();
        f11 = new JPanel();
        g1 = new JPanel();
        g2 = new JPanel();
        g3 = new JPanel();
        g4 = new JPanel();
        g5 = new JPanel();
        g6 = new JPanel();
        g7 = new JPanel();
        g8 = new JPanel();
        g9 = new JPanel();
        g10 = new JPanel();
        g11 = new JPanel();
        h1 = new JPanel();
        h2 = new JPanel();
        h3 = new JPanel();
        h4 = new JPanel();
        h5 = new JPanel();
        h6 = new JPanel();
        h7 = new JPanel();
        h8 = new JPanel();
        h9 = new JPanel();
        h10 = new JPanel();
        h11 = new JPanel();
        i1 = new JPanel();
        i2 = new JPanel();
        i3 = new JPanel();
        i4 = new JPanel();
        i5 = new JPanel();
        i6 = new JPanel();
        i7 = new JPanel();
        i8 = new JPanel();
        i9 = new JPanel();
        i10 = new JPanel();
        i11 = new JPanel();
        j1 = new JPanel();
        j2 = new JPanel();
        j3 = new JPanel();
        j4 = new JPanel();
        j5 = new JPanel();
        j6 = new JPanel();
        j7 = new JPanel();
        j8 = new JPanel();
        j9 = new JPanel();
        j10 = new JPanel();
        j11 = new JPanel();
        k1 = new JPanel();
        k2 = new JPanel();
        k3 = new JPanel();
        k4 = new JPanel();
        k5 = new JPanel();
        k6 = new JPanel();
        k7 = new JPanel();
        k8 = new JPanel();
        k9 = new JPanel();
        k10 = new JPanel();
        k11 = new JPanel();
        
        diamond.add(a1);
        diamond.add(a2);
        diamond.add(a3);
        diamond.add(a4);
        diamond.add(a5);
        diamond.add(a6);
        diamond.add(a7);
        diamond.add(a8);
        diamond.add(a9);
        diamond.add(a10);
        diamond.add(a11);
        diamond.add(b1);
        diamond.add(b2);
        diamond.add(b3);
        diamond.add(b4);
        diamond.add(b5);
        diamond.add(b6);
        diamond.add(b7);
        diamond.add(b8);
        diamond.add(b9);
        diamond.add(b10);
        diamond.add(b11);
        diamond.add(c1);
        diamond.add(c2);
        diamond.add(c3);
        diamond.add(c4);
        diamond.add(c5);
        diamond.add(c6);
        diamond.add(c7);
        diamond.add(c8);
        diamond.add(c9);
        diamond.add(c10);
        diamond.add(c11);
        diamond.add(d1);
        diamond.add(d2);
        diamond.add(d3);
        diamond.add(d4);
        diamond.add(d5);
        diamond.add(d6);
        diamond.add(d7);
        diamond.add(d8);
        diamond.add(d9);
        diamond.add(d10);
        diamond.add(d11);
        diamond.add(e1);
        diamond.add(e2);
        diamond.add(e3);
        diamond.add(e4);
        diamond.add(e5);
        diamond.add(e6);
        diamond.add(e7);
        diamond.add(e8);
        diamond.add(e9);
        diamond.add(e10);
        diamond.add(e11);
        diamond.add(f1);
        diamond.add(f2);
        diamond.add(f3);
        diamond.add(f4);
        diamond.add(f5);
        diamond.add(f6);
        diamond.add(f7);
        diamond.add(f8);
        diamond.add(f9);
        diamond.add(f10);
        diamond.add(f11);
        diamond.add(g1);
        diamond.add(g2);
        diamond.add(g3);
        diamond.add(g4);
        diamond.add(g5);
        diamond.add(g6);
        diamond.add(g7);
        diamond.add(g8);
        diamond.add(g9);
        diamond.add(g10);
        diamond.add(g11);
        diamond.add(h1);
        diamond.add(h2);
        diamond.add(h3);
        diamond.add(h4);
        diamond.add(h5);
        diamond.add(h6);
        diamond.add(h7);
        diamond.add(h8);
        diamond.add(h9);
        diamond.add(h10);
        diamond.add(h11);
        diamond.add(i1);
        diamond.add(i2);
        diamond.add(i3);
        diamond.add(i4);
        diamond.add(i5);
        diamond.add(i6);
        diamond.add(i7);
        diamond.add(i8);
        diamond.add(i9);
        diamond.add(i10);
        diamond.add(i11);
        diamond.add(j1);
        diamond.add(j2);
        diamond.add(j3);
        diamond.add(j4);
        diamond.add(j5);
        diamond.add(j6);
        diamond.add(j7);
        diamond.add(j8);
        diamond.add(j9);
        diamond.add(j10);
        diamond.add(j11);
        diamond.add(k1);
        diamond.add(k2);
        diamond.add(k3);
        diamond.add(k4);
        diamond.add(k5);
        diamond.add(k6);
        diamond.add(k7);
        diamond.add(k8);
        diamond.add(k9);
        diamond.add(k10);
        diamond.add(k11);
        
        a1.setBackground(Color.WHITE);
        a2.setBackground(Color.WHITE);
        a3.setBackground(Color.WHITE);
        a4.setBackground(Color.WHITE);
        a5.setBackground(Color.WHITE);
        a6.setBackground(Color.WHITE);
        a7.setBackground(Color.WHITE);
        a8.setBackground(Color.WHITE);
        a9.setBackground(Color.WHITE);
        a10.setBackground(Color.WHITE);
        a11.setBackground(Color.WHITE);
        b1.setBackground(Color.WHITE);
        b2.setBackground(Color.WHITE);
        b3.setBackground(Color.WHITE);
        b4.setBackground(Color.WHITE);
        b5.setBackground(Color.WHITE);
        b6.setBackground(Color.RED);
        b7.setBackground(Color.WHITE);
        b8.setBackground(Color.WHITE);
        b9.setBackground(Color.WHITE);
        b10.setBackground(Color.WHITE);
        b11.setBackground(Color.WHITE);
        c1.setBackground(Color.WHITE);
        c2.setBackground(Color.WHITE);
        c3.setBackground(Color.WHITE);
        c4.setBackground(Color.WHITE);
        c5.setBackground(Color.WHITE);
        c6.setBackground(Color.RED);
        c7.setBackground(Color.WHITE);
        c8.setBackground(Color.WHITE);
        c9.setBackground(Color.WHITE);
        c10.setBackground(Color.WHITE);
        c11.setBackground(Color.WHITE);
        d1.setBackground(Color.WHITE);
        d2.setBackground(Color.WHITE);
        d3.setBackground(Color.WHITE);
        d4.setBackground(Color.WHITE);
        d5.setBackground(Color.RED);
        d6.setBackground(Color.RED);
        d7.setBackground(Color.RED);
        d8.setBackground(Color.WHITE);
        d9.setBackground(Color.WHITE);
        d10.setBackground(Color.WHITE);
        d11.setBackground(Color.WHITE);
        e1.setBackground(Color.WHITE);
        e2.setBackground(Color.WHITE);
        e3.setBackground(Color.WHITE);
        e4.setBackground(Color.WHITE);
        e5.setBackground(Color.RED);
        e6.setBackground(Color.RED);
        e7.setBackground(Color.RED);
        e8.setBackground(Color.WHITE);
        e9.setBackground(Color.WHITE);
        e10.setBackground(Color.WHITE);
        e11.setBackground(Color.WHITE);
        f1.setBackground(Color.WHITE);
        f2.setBackground(Color.WHITE);
        f3.setBackground(Color.WHITE);
        f4.setBackground(Color.RED);
        f5.setBackground(Color.RED);
        f6.setBackground(Color.RED);
        f7.setBackground(Color.RED);
        f8.setBackground(Color.RED);
        f9.setBackground(Color.WHITE);
        f10.setBackground(Color.WHITE);
        f11.setBackground(Color.WHITE);
        g1.setBackground(Color.WHITE);
        g2.setBackground(Color.WHITE);
        g3.setBackground(Color.WHITE);
        g4.setBackground(Color.RED);
        g5.setBackground(Color.RED);
        g6.setBackground(Color.RED);
        g7.setBackground(Color.RED);
        g8.setBackground(Color.RED);
        g9.setBackground(Color.WHITE);
        g10.setBackground(Color.WHITE);
        g11.setBackground(Color.WHITE);
        h1.setBackground(Color.WHITE);
        h2.setBackground(Color.WHITE);
        h3.setBackground(Color.WHITE);
        h4.setBackground(Color.WHITE);
        h5.setBackground(Color.RED);
        h6.setBackground(Color.RED);
        h7.setBackground(Color.RED);
        h8.setBackground(Color.WHITE);
        h9.setBackground(Color.WHITE);
        h10.setBackground(Color.WHITE);
        h11.setBackground(Color.WHITE);
        i1.setBackground(Color.WHITE);
        i2.setBackground(Color.WHITE);
        i3.setBackground(Color.WHITE);
        i4.setBackground(Color.WHITE);
        i5.setBackground(Color.WHITE);
        i6.setBackground(Color.RED);
        i7.setBackground(Color.WHITE);
        i8.setBackground(Color.WHITE);
        i9.setBackground(Color.WHITE);
        i10.setBackground(Color.WHITE);
        i11.setBackground(Color.WHITE);
        j1.setBackground(Color.WHITE);
        j2.setBackground(Color.WHITE);
        j3.setBackground(Color.WHITE);
        j4.setBackground(Color.WHITE);
        j5.setBackground(Color.WHITE);
        j6.setBackground(Color.RED);
        j7.setBackground(Color.WHITE);
        j8.setBackground(Color.WHITE);
        j9.setBackground(Color.WHITE);
        j10.setBackground(Color.WHITE);
        j11.setBackground(Color.WHITE);
        k1.setBackground(Color.WHITE);
        k2.setBackground(Color.WHITE);
        k3.setBackground(Color.WHITE);
        k4.setBackground(Color.WHITE);
        k5.setBackground(Color.WHITE);
        k6.setBackground(Color.WHITE);
        k7.setBackground(Color.WHITE);
        k8.setBackground(Color.WHITE);
        k9.setBackground(Color.WHITE);
        k10.setBackground(Color.WHITE);
        k11.setBackground(Color.WHITE);
    }
    
    public void paint(Graphics g)
    {
        diamond.setVisible(true);
        
        a1.setVisible(true);
        a2.setVisible(true);
        a3.setVisible(true);
        a4.setVisible(true);
        a5.setVisible(true);
        a6.setVisible(true);
        a7.setVisible(true);
        a8.setVisible(true);
        a9.setVisible(true);
        a10.setVisible(true);
        a11.setVisible(true);
        b1.setVisible(true);
        b2.setVisible(true);
        b3.setVisible(true);
        b4.setVisible(true);
        b5.setVisible(true);
        b6.setVisible(true);
        b7.setVisible(true);
        b8.setVisible(true);
        b9.setVisible(true);
        b10.setVisible(true);
        b11.setVisible(true);
        c1.setVisible(true);
        c2.setVisible(true);
        c3.setVisible(true);
        c4.setVisible(true);
        c5.setVisible(true);
        c6.setVisible(true);
        c7.setVisible(true);
        c8.setVisible(true);
        c9.setVisible(true);
        c10.setVisible(true);
        c11.setVisible(true);
        d1.setVisible(true);
        d2.setVisible(true);
        d3.setVisible(true);
        d4.setVisible(true);
        d5.setVisible(true);
        d6.setVisible(true);
        d7.setVisible(true);
        d8.setVisible(true);
        d9.setVisible(true);
        d10.setVisible(true);
        d11.setVisible(true);
        e1.setVisible(true);
        e2.setVisible(true);
        e3.setVisible(true);
        e4.setVisible(true);
        e5.setVisible(true);
        e6.setVisible(true);
        e7.setVisible(true);
        e8.setVisible(true);
        e9.setVisible(true);
        e10.setVisible(true);
        e11.setVisible(true);
        f1.setVisible(true);
        f2.setVisible(true);
        f3.setVisible(true);
        f4.setVisible(true);
        f5.setVisible(true);
        f6.setVisible(true);
        f7.setVisible(true);
        f8.setVisible(true);
        f9.setVisible(true);
        f10.setVisible(true);
        f11.setVisible(true);
        g1.setVisible(true);
        g2.setVisible(true);
        g3.setVisible(true);
        g4.setVisible(true);
        g5.setVisible(true);
        g6.setVisible(true);
        g7.setVisible(true);
        g8.setVisible(true);
        g9.setVisible(true);
        g10.setVisible(true);
        g11.setVisible(true);
        h1.setVisible(true);
        h2.setVisible(true);
        h3.setVisible(true);
        h4.setVisible(true);
        h5.setVisible(true);
        h6.setVisible(true);
        h7.setVisible(true);
        h8.setVisible(true);
        h9.setVisible(true);
        h10.setVisible(true);
        h11.setVisible(true);
        i1.setVisible(true);
        i2.setVisible(true);
        i3.setVisible(true);
        i4.setVisible(true);
        i5.setVisible(true);
        i6.setVisible(true);
        i7.setVisible(true);
        i8.setVisible(true);
        i9.setVisible(true);
        i10.setVisible(true);
        i11.setVisible(true);
        j1.setVisible(true);
        j2.setVisible(true);
        j3.setVisible(true);
        j4.setVisible(true);
        j5.setVisible(true);
        j6.setVisible(true);
        j7.setVisible(true);
        j8.setVisible(true);
        j9.setVisible(true);
        j10.setVisible(true);
        j11.setVisible(true);
        k1.setVisible(true);
        k2.setVisible(true);
        k3.setVisible(true);
        k4.setVisible(true);
        k5.setVisible(true);
        k6.setVisible(true);
        k7.setVisible(true);
        k8.setVisible(true);
        k9.setVisible(true);
        k10.setVisible(true);
        k11.setVisible(true);
    }
}

Here's my code for the testing class:

import java.awt.*;
import javax.swing.*;
import java.awt.Component;


public class DiamondTesting
{
    public static void main(String[] args)
    {
        JFrame frm = new JFrame();
        
        Diamond yes = new Diamond();
        Diamond no = new Diamond();
        
        frm.setLayout(new GridLayout(2,1));
        
        yes.makeDiamond();
        no.makeDiamond();
        
        frm.add(yes);
        frm.add(no);
        
        no.repaint();
        yes.repaint();
        
        frm.setVisible(true);
    }
}

I'm absolutely lost as to what my problem is, as this is my first dive into declaring my own Component class. Any help here?