Printing Random Colored Lines in Java

Problem:

Create a GUI-based java application that prints colored lines randomly.< br />< br />

Output:

Solution:

//*******************MyLine.java********************/
import java.awt.Color;
import java.awt.Graphics;

public class MyLine {
 
 private int x1,x2,y1,y2;
 private Color myColor;
 
 
 
 public MyLine(int x1, int x2, int y1, int y2, Color myColor) {
  this.x1 = x1;
  this.x2 = x2;
  this.y1 = y1;
  this.y2 = y2;
  this.myColor = myColor;
 }



 public void draw(Graphics g) {
  g.setColor(myColor);
  g.drawLine(x1, y1, x2, y2);
 }
 

}


//********************RandomShapesFrame.java**********/
import javax.swing.JFrame;

public class RandomShapesFrame {

 public static void main(String[] args) {
  
  JFrame frame = new JFrame("Polygons");
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  
  frame.getContentPane().add(new RandomShapesPanel());
  frame.pack();
  frame.setVisible(true);
  
 }

}


//******************RandomShapesPanel.java**********/
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.util.Random;

import javax.swing.JPanel;

public class RandomShapesPanel extends JPanel {
 
 private MyLine[] lines;
 private Random rnd = new Random();
 
 public RandomShapesPanel() {
  
  lines = new MyLine[5 + rnd.nextInt(5)]; //between 5 & 9 lines. 
  
  int x1, x2, y1, y2;
  Color myColor;
  
  for(int count=0; count < lines.length; count++) {
  
   x1 = rnd.nextInt(300);
   x2 = rnd.nextInt(300);
   y1 = rnd.nextInt(300);
   y2 = rnd.nextInt(300);
   
   myColor = new Color(rnd.nextInt(256),rnd.nextInt(256),rnd.nextInt(256));
   
   lines[count] = new MyLine(x1,x2,y1,y2,myColor);
   
  }
  
  setBackground(Color.white);
  setPreferredSize(new Dimension(300,300));
  
 }

 @Override
 protected void paintComponent(Graphics g) {
  super.paintComponent(g);
  for(MyLine line : lines)
   line.draw(g);
 }
 
}