Stars Applet

Stars Applet that show some stars on the applet windows.

/*******************************************************
*     MYCPLUS Sample Code - https://www.mycplus.com     *
*                                                     *
*   This code is made available as a service to our   *
*      visitors and is provided strictly for the      *
*               purpose of illustration.              *
*                                                     *
* Please direct all inquiries to saqib at mycplus.com *
*******************************************************/

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

public class StarApplet extends JApplet
{
  // Initialize the applet
  public void init()
  {
    Container content = getContentPane();

    // Add the panel to the content pane for the applet
    content.add(pane);                 // BorderLayout.CENTER is default position
  }

  // Class defining a pane on which to draw
  class StarPane extends JComponent
  {
    public void paint(Graphics g)
    {
      Graphics2D g2D = (Graphics2D)g;
      Star star = new Star(0,0);                 // Create a star
      float delta = 60f;                         // Increment between stars
      float starty = 0f;                         // Starting y position

      // Draw 3 rows of 4 stars
      for(int yCount = 0; yCount < 3; yCount++)
      {
        starty += delta;                        // Increment row position
        float startx = 0f;                      // Start x position in a row

        // Draw a row of 4 stars
        for(int xCount = 0; xCount<4; xCount++)
          g2D.draw(star.atLocation(startx += delta, starty));
      }
    }
  }

  StarPane pane = new StarPane();              // Pane containing stars
}


//*****************************
//class Star.java
//Create a new file and name it Star.java
//and copy the code below into that file.
//*****************************
import java.awt.geom.*;
import java.awt.*;

class Star
{
  public Star(float x, float y)
  {
    start = new Point2D.Float(x, y);                      // store start point
    createStar();
  }

  // Create the path from start
  void createStar()
  {
    Point2D.Float point = start;
    p = new GeneralPath(GeneralPath.WIND_NON_ZERO);
    p.moveTo(point.x, point.y);
    p.lineTo(point.x + 20.0f, point.y - 5.0f);            // Line from start to A
    point = (Point2D.Float)p.getCurrentPoint();
    p.lineTo(point.x + 5.0f, point.y - 20.0f);            // Line from A to B
    point = (Point2D.Float)p.getCurrentPoint();
    p.lineTo(point.x + 5.0f, point.y + 20.0f);            // Line from B to C
    point = (Point2D.Float)p.getCurrentPoint();
    p.lineTo(point.x + 20.0f, point.y + 5.0f);            // Line from C to D
    point = (Point2D.Float)p.getCurrentPoint();
    p.lineTo(point.x - 20.0f, point.y + 5.0f);            // Line from D to E
    point = (Point2D.Float)p.getCurrentPoint();
    p.lineTo(point.x - 5.0f, point.y + 20.0f);            // Line from E to F
    point = (Point2D.Float)p.getCurrentPoint();
    p.lineTo(point.x - 5.0f, point.y - 20.0f);            // Line from F to g
    p.closePath();                                        // Line from G to start
  }

  Shape atLocation(float x, float y)
  {
    start.setLocation(x, y);                              // Store new start
    p.reset();                                            // Erase current path
    createStar();                                         // create new path
    return p;                                             // Return the path
  }

  // Make the path available
  Shape getShape()
  {
    return p;
  }

  private Point2D.Float start;                           // Start point for star
  private GeneralPath p;                                 // Star path
}

100

101

102

103

104

105

106

107

/*******************************************************

* MYCPLUS Sample Code - https://www.mycplus.com *

* *

* This code is made available as a service to our *

* visitors and is provided strictly for the *

* purpose of illustration. *

* *

* Please direct all inquiries to saqib at mycplus.com *

*******************************************************/

import javax.swing.*;

import java.awt.*;

import java.awt.geom.*;

public class StarApplet extends JApplet

{

// Initialize the applet

public void init()

{

Container content = getContentPane();

// Add the panel to the content pane for the applet

content.add(pane); // BorderLayout.CENTER is default position

}

// Class defining a pane on which to draw

class StarPane extends JComponent

{

public void paint(Graphics g)

{

Graphics2D g2D = (Graphics2D)g;

Star star = new Star(0,0); // Create a star

float delta = 60f; // Increment between stars

float starty = 0f; // Starting y position

// Draw 3 rows of 4 stars

for(int yCount = 0; yCount < 3; yCount++)

{

starty += delta; // Increment row position

float startx = 0f; // Start x position in a row

// Draw a row of 4 stars

for(int xCount = 0; xCount<4; xCount++)

g2D.draw(star.atLocation(startx += delta, starty));

}

StarPane pane = new StarPane(); // Pane containing stars

}

//*****************************

//class Star.java

//Create a new file and name it Star.java

//and copy the code below into that file.

//*****************************

import java.awt.geom.*;

import java.awt.*;

class Star

{

public Star(float x, float y)

{

start = new Point2D.Float(x, y); // store start point

createStar();

}

// Create the path from start

void createStar()

{

Point2D.Float point = start;

p = new GeneralPath(GeneralPath.WIND_NON_ZERO);

p.moveTo(point.x, point.y);

p.lineTo(point.x + 20.0f, point.y - 5.0f); // Line from start to A