java applet program to draw christmas tree
It's going to be Christmas , Merry Christmas to you all , Let's see what programmers do for Christmas
Python
effect
Source code
''' Author: coder-jason Date: 2021-12-14 15:49:17 LastEditTime: 2021-12-14 16:21:45 ''' from turtle import * import random import time n = 94.0 # main line height speed( "normal" ) # setting speeds: fast slow fastest slowest setup( 700 , 650 ) # setting window size screensize(bg= 'seashell' ) left( 90 ) forward( 3 * n) color( "orange" , "yellow" ) begin_fill( ) left( 126 ) for i in range ( 5 ) : forward(n / 5 ) right( 144 ) forward(n / 5 ) left( 72 ) end_fill( ) right( 126 ) color( "dark green" ) backward(n * 4.8 ) def tree (d, s) : if d <= 0 : return forward(s) tree(d - 1 , s * .8 ) right( 120 ) tree(d - 3 , s * .5 ) right( 120 ) tree(d - 3 , s * .5 ) right( 120 ) backward(s) tree( 15 , n) backward(n / 2 ) for i in range ( 200 ) : a = 200 - 400 * random.random( ) b = 10 - 20 * random.random( ) up( ) forward(b) left( 90 ) forward(a) down( ) if random.randint( 0 , 1 ) == 0 : color( 'tomato' ) else : color( 'wheat' ) circle( 2 ) up( ) backward(a) right( 90 ) backward(b) time.sleep( 60 ) Java
effect
Source code
Start class
/* * @Author: coder-jason * @Date: 2021-12-14 15:26:49 * @LastEditTime: 2021-12-14 16:43:55 */ package com.christmasTree ; public class Start { public static void main ( String [ ] args) { new Frame ( ) ; } } Frame class
/* * @Author: coder-jason * @Date: 2021-12-14 15:26:49 * @LastEditTime: 2021-12-14 16:43:55 */ package com.christmasTree ; import javax.swing. * ; public class Frame extends JFrame { Panel p; Frame ( ) { p = new Panel ( ) ; add (p) ; setBounds ( 200 , 200 , 650 , 500 ) ; // Set window size and position x,y coordinate width,height The window is wide and high setVisible ( true ) ; validate ( ) ; setDefaultCloseOperation ( Frame .EXIT_ON_CLOSE) ; } } Panel class
package com.christmasTree ; import javax.swing. * ; import java.applet. Applet ; import java.applet. AudioClip ; import java.awt. * ; import java.awt.event. ActionEvent ; import java.awt.event. ActionListener ; import java.io. File ; import java.net. MalformedURLException ; import java.net. URI; import java.net. URL; public class Panel extends JPanel implements ActionListener { int x, y; JButton onOff; Timer time; boolean flag; boolean color; File file = new File ( "your music location" ) ; URL url = null ; URI uri = null ; AudioClip clip = null ; Panel ( ) { setLayout ( null ) ; ImageIcon icon = new ImageIcon ( "off.png" ) ; icon. setImage (icon. getImage ( ) . getScaledInstance ( 50 , 50 , 0 ) ) ; onOff = new JButton ( ) ; onOff. addActionListener ( this ) ; onOff. setIcon (icon) ; onOff. setBorder ( null ) ; onOff. setContentAreaFilled ( false ) ; onOff. setBounds ( 0 , 0 , 50 , 50 ) ; add (onOff) ; flag = true ; color = true ; time = new Timer ( 300 , this ) ; time. stop ( ) ; try { uri = file. toURI ( ) ; url = uri. toURL ( ) ; } catch ( MalformedURLException e1) { } clip = Applet . newAudioClip (url) ; } public void paintComponent ( Graphics g) { x = 380 ; y = 100 ; if (color) { ImageIcon image1 = new ImageIcon ( "star1.png" ) ; g. drawImage (image1. getImage ( ) , x - 3 , y - 25 , 28 , 26 , null ) ; } else { ImageIcon image1 = new ImageIcon ( "star2.png" ) ; g. drawImage (image1. getImage ( ) , x - 3 , y - 25 , 25 , 25 , null ) ; } Color red = new Color ( 255 , 0 , 0 ) ; Color yellow = new Color ( 255 , 241 , 0 ) ; drawTree ( 1 , 4 , g) ; if (color) { drawDecoration (x + 22 , y - 44 , 6 , yellow, g) ; drawDecoration (x, y - 22 , 8 , red, g) ; } else { drawDecoration (x + 22 , y - 44 , 6 , red, g) ; drawDecoration (x, y - 22 , 8 , yellow, g) ; } x = 380 - 2 * 22 ; drawTree ( 3 , 6 , g) ; if (color) { drawDecoration (x + 22 , y - 44 , 10 , yellow, g) ; drawDecoration (x, y - 22 , 12 , red, g) ; } else { drawDecoration (x + 22 , y - 44 , 10 , red, g) ; drawDecoration (x, y - 22 , 12 , yellow, g) ; } x = 380 - 4 * 22 ; drawTree ( 5 , 8 , g) ; if (color) { drawDecoration (x + 22 , y - 44 , 14 , yellow, g) ; drawDecoration (x, y - 22 , 16 , red, g) ; } else { drawDecoration (x + 22 , y - 44 , 14 , red, g) ; drawDecoration (x, y - 22 , 16 , yellow, g) ; } x = 380 - 1 * 22 ; drwaRoot (g) ; } void drawTree ( int from, int to , Graphics g) { Color c = new Color ( 9 , 124 , 37 ) ; g. setColor (c) ; for ( int i = from; i <= to ; i++ ) { for ( int j = 0 ; j < (i * 2 - 1 ) ; j++ ) { g. fillRect (x, y, 20 , 20 ) ; x += 22 ; } x = 380 - i * 22 ; y += 22 ; } } void drawDecoration ( int tx, int ty, int num, Color c, Graphics g) { g. setColor (c) ; g. fillRoundRect (tx, ty, 18 , 18 , 18 , 18 ) ; g. fillRoundRect (tx + num * 22 , ty, 18 , 18 , 18 , 18 ) ; } void drwaRoot ( Graphics g) { Color c = new Color ( 131 , 78 , 0 ) ; g. setColor (c) ; for ( int i = 0 ; i < 4 ; i++ ) { for ( int j = 0 ; j < 3 ; j++ ) { g. fillRect (x, y, 20 , 20 ) ; x += 22 ; } x = 380 - 1 * 22 ; y += 22 ; } } public void actionPerformed ( ActionEvent e) { if (e. getSource ( ) == onOff) { if (flag) { ImageIcon icon = new ImageIcon ( "on.png" ) ; icon. setImage (icon. getImage ( ) . getScaledInstance ( 50 , 50 , 0 ) ) ; onOff. setIcon (icon) ; flag = false ; clip. loop ( ) ; time. restart ( ) ; } else { ImageIcon icon = new ImageIcon ( "off.png" ) ; icon. setImage (icon. getImage ( ) . getScaledInstance ( 50 , 50 , 0 ) ) ; onOff. setIcon (icon) ; flag = true ; time. stop ( ) ; clip. stop ( ) ; } } else if (e. getSource ( ) == time) { repaint ( ) ; color = !color; } } } 
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本文为[Siege lion Jason]所创，转载请带上原文链接，感谢
https://chowdera.com/2021/12/202112141810281063.html
Source: https://chowdera.com/2022/01/202201190128039454.html
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