narrate their code walkthrough of the frozen code submission. should spend at least a few minutes explaining facets of the project, with an emphasis on the Java used.

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.border.Border;

public class JPanelWorldCampus extends JPanel implements ActionListener {

JLabel jlWorldCampus, jlIntro, jlCharacterMod, jlLine;

JButton jbL1, jbL2, jbL3, jbL4, jbL5, jbL6, jbL7, jbL8, jbL9, jbR1, jbR2, jbR3, jbR4, jbR5, jbR6, jbR7, jbR8, jbR9;

JButton jbStart, jbScore, currentButton1, currentButton2, jbBack;

String theme, difficulty;

int buttonCounter, totalCounter, delay, score;

Boolean left, right;

Timer previewTimer;

Border blackLine;

public JPanelWorldCampus(String infTheme, String infDifficulty) {

super();

setLayout(null);

theme = infTheme;

difficulty = infDifficulty;

left = true;

right = true;

jlWorldCampus = new JLabel("WORLD CAMPUS");

jlWorldCampus.setBounds(new Rectangle(300, 20, 220, 20));

add(jlWorldCampus);

jlIntro = new JLabel("Match the colored squares for points");

jlIntro.setBounds(new Rectangle(230, 180, 220, 20));

add(jlIntro);

jlCharacterMod = new JLabel();

if (theme.equals("programming")){

jlCharacterMod.setText("As a programmer you score double points");

jlCharacterMod.setBounds(new Rectangle(220, 235, 400, 20));

}

if (theme.equals("football")){

jlCharacterMod.setText("As a football player you have less time to preview the board");

jlCharacterMod.setBounds(new Rectangle(170, 235, 400, 20));

}

if (theme.equals("math")){

jlCharacterMod.setText("As a math student you have more time to preview the board");

jlCharacterMod.setBounds(new Rectangle(175, 235, 400, 20));

}

add(jlCharacterMod);

jbStart = new JButton("Start");

jbStart.setBounds(new Rectangle(270, 300, 100, 40));

jbStart.addActionListener(this);

add(jbStart);

jbScore = new JButton("Score: " + score);

jbScore.setBounds(new Rectangle(255, 50, 100, 40));

blackLine = BorderFactory.createLineBorder(Color.black);

jlLine = new JLabel();

jlLine.setBounds(new Rectangle(305, 110, 2, 310));

jlLine.setBorder(blackLine);

jbL1 = new JButton();

jbL1.setBounds(new Rectangle(205, 150, 60, 40));

jbL1.setBackground(Color.RED);

jbL2 = new JButton();

jbL2.setBounds(new Rectangle(205, 250, 60, 40));

jbL2.setBackground(Color.CYAN);

jbL3 = new JButton();

jbL3.setBounds(new Rectangle(205, 350, 60, 40));

jbL3.setBackground(Color.YELLOW);

jbL4 = new JButton();

jbL4.setBounds(new Rectangle(130, 150, 60, 40));

jbL4.setBackground(Color.GREEN);

jbL5 = new JButton();

jbL5.setBounds(new Rectangle(130, 250, 60, 40));

jbL5.setBackground(Color.BLUE);

jbL6 = new JButton();

jbL6.setBounds(new Rectangle(130, 350, 60, 40));

jbL6.setBackground(Color.MAGENTA);

jbL7 = new JButton();

jbL7.setBounds(new Rectangle(55, 150, 60, 40));

jbL7.setBackground(Color.WHITE);

jbL8 = new JButton();

jbL8.setBounds(new Rectangle(55, 250, 60, 40));

jbL8.setBackground(Color.ORANGE);

jbL9 = new JButton();

jbL9.setBounds(new Rectangle(55, 350, 60, 40));

jbL9.setBackground(Color.PINK);

jbR1 = new JButton();

jbR1.setBounds(new Rectangle(345, 150, 60, 40));

jbR1.setBackground(Color.YELLOW);

jbR2 = new JButton();

jbR2.setBounds(new Rectangle(345, 250, 60, 40));

jbR2.setBackground(Color.RED);

jbR3 = new JButton();

jbR3.setBounds(new Rectangle(345, 350, 60, 40));

jbR3.setBackground(Color.CYAN);

jbR4 = new JButton();

jbR4.setBounds(new Rectangle(420, 150, 60, 40));

jbR4.setBackground(Color.BLUE);

jbR5 = new JButton();

jbR5.setBounds(new Rectangle(420, 250, 60, 40));

jbR5.setBackground(Color.GREEN);

jbR6 = new JButton();

jbR6.setBounds(new Rectangle(420, 350, 60, 40));

jbR6.setBackground(Color.MAGENTA);

jbR7 = new JButton();

jbR7.setBounds(new Rectangle(495, 150, 60, 40));

jbR7.setBackground(Color.ORANGE);

jbR8 = new JButton();

jbR8.setBounds(new Rectangle(495, 250, 60, 40));

jbR8.setBackground(Color.PINK);

jbR9 = new JButton();

jbR9.setBounds(new Rectangle(495, 350, 60, 40));

jbR9.setBackground(Color.WHITE);

if(theme.equals("programming")){

delay = 5000;

}

if(theme.equals("football")){

delay = 3000;

}

if(theme.equals("math")){

delay = 8000;

}

previewTimer = new Timer(delay, this);

jbBack = new JButton("Back");

jbBack.setBounds(new Rectangle(375, 50, 100, 40));

}

@Override

public void actionPerformed(ActionEvent event) {

Object obj = event.getSource();

if (obj == jbStart) {

if (difficulty.equals("easy")) {

remove(jlIntro);

remove(jlCharacterMod);

remove(jbStart);

add(jbL1);

add(jbL2);

add(jbL3);

add(jbR1);

add(jbR2);

add(jbR3);

add(jlLine);

add(jbScore);

previewTimer.start();

validate();

repaint();

}

if (difficulty.equals("medium")) {

remove(jlIntro);

remove(jlCharacterMod);

remove(jbStart);

add(jbL1);

add(jbL2);

add(jbL3);

add(jbL4);

add(jbL5);

add(jbL6);

add(jbR1);

add(jbR2);

add(jbR3);

add(jbR4);

add(jbR5);

add(jbR6);

add(jlLine);

add(jbScore);

previewTimer.start();

validate();

repaint();

}

if (difficulty.equals("hard")) {

remove(jlIntro);

remove(jlCharacterMod);

remove(jbStart);

add(jbL1);

add(jbL2);

add(jbL3);

add(jbL4);

add(jbL5);

add(jbL6);

add(jbL7);

add(jbL8);

add(jbL9);

add(jbR1);

add(jbR2);

add(jbR3);

add(jbR4);

add(jbR5);

add(jbR6);

add(jbR7);

add(jbR8);

add(jbR9);

add(jlLine);

add(jbScore);

previewTimer.start();

validate();

repaint();

}

}

if (obj == previewTimer) {

previewTimer.stop();

jbL1.setContentAreaFilled(false);

jbL1.addActionListener(this);

jbL2.setContentAreaFilled(false);

jbL2.addActionListener(this);

jbL3.setContentAreaFilled(false);

jbL3.addActionListener(this);

jbL4.setContentAreaFilled(false);

jbL4.addActionListener(this);

jbL5.setContentAreaFilled(false);

jbL5.addActionListener(this);

jbL6.setContentAreaFilled(false);

jbL6.addActionListener(this);

jbL7.setContentAreaFilled(false);

jbL7.addActionListener(this);

jbL8.setContentAreaFilled(false);

jbL8.addActionListener(this);

jbL9.setContentAreaFilled(false);

jbL9.addActionListener(this);

jbR1.setContentAreaFilled(false);

jbR1.addActionListener(this);

jbR2.setContentAreaFilled(false);

jbR2.addActionListener(this);

jbR3.setContentAreaFilled(false);

jbR3.addActionListener(this);

jbR4.setContentAreaFilled(false);

jbR4.addActionListener(this);

jbR5.setContentAreaFilled(false);

jbR5.addActionListener(this);

jbR6.setContentAreaFilled(false);

jbR6.addActionListener(this);

jbR7.setContentAreaFilled(false);

jbR7.addActionListener(this);

jbR8.setContentAreaFilled(false);

jbR8.addActionListener(this);

jbR9.setContentAreaFilled(false);

jbR9.addActionListener(this);

}

if (left.equals(true)) {

if (obj == jbL1 || obj == jbL2 || obj == jbL3 || obj == jbL4 || obj == jbL5 || obj == jbL6 || obj == jbL7 || obj == jbL8 || obj == jbL9) {

currentButton1 = (JButton) obj;

currentButton1.setContentAreaFilled(true);

currentButton1.setEnabled(false);

left = false;

buttonCounter = buttonCounter + 1;

}

}

if (right.equals(true)) {

if (obj == jbR1 || obj == jbR2 || obj == jbR3 || obj == jbR4 || obj == jbR5 || obj == jbR6 || obj == jbR7 || obj == jbR8 || obj == jbR9) {

currentButton2 = (JButton) obj;

currentButton2.setContentAreaFilled(true);

currentButton2.setEnabled(false);

right = false;

buttonCounter = buttonCounter + 1;

}

}

if (buttonCounter == 2) {

if (currentButton1.getBackground() == currentButton2.getBackground()) {

if (theme.equals("programming")){

score++;

}

score++;

jbScore.setText("Score: " + score);

}

left = true;

right = true;

buttonCounter = 0;

totalCounter++;

}

if (difficulty.equals("easy")) {

if (totalCounter == 3) {

add(jbBack);

validate();

repaint();

}

}

if (difficulty.equals("medium")) {

if (totalCounter == 6) {

add(jbBack);

validate();

repaint();

}

}

if (difficulty.equals("hard")) {

if (totalCounter == 9) {

add(jbBack);

validate();

repaint();

}

}

}

@Override

public void paintComponent(Graphics g

) {

super.paintComponent(g);

Image myImage = Toolkit.getDefaultToolkit().getImage("images/background.jpg");

g.drawImage(myImage, 0, 0, this);

}

}

Please explain the code for me using xml or anything thank you