DESCRIBE WHAT THE FOLLWING JAVA CODE DOES:

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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DESCRIBE WHAT THE FOLLWING JAVA CODE DOES:

 


public class Main{

public static void main(String[] args) {

new MyFrame();

}

}

import javax.swing.*;

public class MyFrame extends JFrame{

MyPanel panel;

MyFrame(){

panel = new MyPanel();

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.add(panel);

this.pack();

this.setLocationRelativeTo(null);

this.setVisible(true);

}

}

import java.awt.*;

import javax.swing.*;

public class MyPanel extends JPanel{

//Image image;

MyPanel(){

//image = new ImageIcon("sky.png").getImage();

this.setPreferredSize(new Dimension(500,500));

}

public void paint(Graphics g) {

Graphics2D g2D = (Graphics2D) g;

//g2D.drawImage(image, 0, 0, null);

g2D.setPaint(Color.blue);

g2D.setStroke(new BasicStroke(5));

g2D.drawLine(0, 0, 500, 500);

//g2D.setPaint(Color.pink);

//g2D.drawRect(0, 0, 100, 200);

//g2D.fillRect(0, 0, 100, 200);

//g2D.setPaint(Color.orange);

//g2D.drawOval(0, 0, 100, 100);

//g2D.fillOval(0, 0, 100, 100);

//g2D.setPaint(Color.red);

//g2D.drawArc(0, 0, 100, 100, 0, 180);

//g2D.fillArc(0, 0, 100, 100, 0, 180);

//g2D.setPaint(Color.white);

//g2D.fillArc(0, 0, 100, 100, 180, 180);

//int[] xPoints = {150,250,350};

//int[] yPoints = {300,150,300};

//g2D.setPaint(Color.yellow);

//g2D.drawPolygon(xPoints, yPoints, 3);

//g2D.fillPolygon(xPoints, yPoints, 3);

//g2D.setPaint(Color.magenta);

//g2D.setFont(new Font("Ink Free",Font.BOLD,50));

//g2D.drawString("U R A WINNER! :D", 50, 50);

}

}

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