import?java.awt.*;
import?java.awt.event.ActionEvent;
import?java.awt.event.ActionListener;
import?java.awt.event.KeyAdapter;
import?java.awt.event.KeyEvent;
import?java.awt.image.MemoryImageSource;
import?java.util.Random;
import?javax.swing.JDialog;
import?javax.swing.JPanel;
import?javax.swing.Timer;
?
public?class?Rain?extends?JDialog?implements?ActionListener?{
?
????private?Random?random?=?new?Random（）;
????private?Dimension?screenSize;
????private?JPanel?graphicsPanel;
????//行高列寬
????private?final?static?int?gap?=?20;
????//存放雨點(diǎn)頂部的位置信息（marginTop）
????private?int[]?posArr;
????//行數(shù)
????private?int?lines;
????//列數(shù)
????private?int?columns;
?
????public?Rain（）?{
????????initComponents（）;
????}
?
????private?void?initComponents（）?{
????????setLayout（new?BorderLayout（））;
????????graphicsPanel?=?new?GraphicsPanel（）;
????????add（graphicsPanel?BorderLayout.CENTER）;
????????//設(shè)置光標(biāo)不可見(jiàn)
????????Toolkit?defaultToolkit?=?Toolkit.getDefaultToolkit（）;
????????Image?image?=?defaultToolkit.createImage（new?MemoryImageSource（0?0?null?0?0））;
????????Cursor?invisibleCursor?=?defaultToolkit.createCustomCursor（image?new?Point（0?0）?“cursor“）;
????????setCursor（invisibleCursor）;
????????//ESC鍵退出
????????KeyPressListener?keyPressListener?=?new?KeyPressListener（）;
????????this.addKeyListener（keyPressListener）;
????????//this.setAlwaysOnTop（true）;
????????//去標(biāo)題欄
????????this.setUndecorated（true）;
????????//全屏
????????this.getGraphicsConfiguration（）.getDevice（）.setFullScreenWindow（this）;
????????this.setDefaultCloseOperation（JDialog.DISPOSE_ON_CLOSE）;
????????setVisible（true）;
?
????????screenSize?=?Toolkit.getDefaultToolkit（）.getScreenSize（）;
????????lines?=?screenSize.height?/?gap;
????????columns?=?screenSize.width?/?gap;
?
????????posArr?=?new?int[columns?+?1];
????????random?=?new?Random（）;
????????for?（int?i?=?0;?i?????????????posArr[i]?=?random.nextInt（lines）;
????????}
?
????????//每秒10幀
????????new?Timer（100?this）.start（）;
????}
?
????/**
?????*?@return?隨機(jī)字符
?????*/
????private?char?getChr（）?{
????????return?（char）?（random.nextInt（94）?+?33）;
????}
?
????public?void?actionPerformed（ActionEvent?e）?{
????????graphicsPanel.repaint（）;
????}
?
????private?class?GraphicsPanel?extends?JPanel?{
????????@Override
????????public?void?paint（Graphics?g）?{
????????????Graphics2D?g2d?=?（Graphics2D）?g;
????????????g2d.setFont（getFont（）.deriveFont（Font.BOLD））;
????????????g2d.setColor（Color.BLACK）;
????????????g2d.fillRect（0?0?screenSize.width?screenSize.height）;
????????????//當(dāng)前列
????????????int?currentColumn?=?0;
????????????for?（int?x?=?0;?x?????????????????int?endPos?=?posArr[currentColumn];
????????????????g2d.setColor（Color.CYAN）;
????????????????g2d.drawString（String.valueOf（getChr（））?x?endPos?*?gap）;
????????????????int?cg?=?0;
????????????????for?（int?j?=?endPos?-?15;?j?????????????????????//顏色漸變

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件?????????160??2018-12-06?14:39??hackerCodeRain\Rain$1.class
?????文件????????1679??2018-12-06?14:39??hackerCodeRain\Rain$GraphicsPanel.class
?????文件?????????648??2018-12-06?14:39??hackerCodeRain\Rain$KeyPressListener.class
?????文件????????3121??2018-12-06?14:39??hackerCodeRain\Rain.class
?????文件????????4065??2018-12-06?14:31??hackerCodeRain\Rain.java
?????目錄???????????0??2018-12-06?14:39??hackerCodeRain\