Java的用处可多了，使用java不仅能够开发出很多应用软件，还可以利用java写表白程序进行表白呢!那用java如何写一个表白程序?接下来我们就来给大家讲解一下java浪漫表白流星图实例!
效果图：
音乐类(其实也可以不用音乐，有些人并不喜欢)：
import javazoom.jl.decoder.JavaLayerException;
import javazoom.jl.player.Player;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
public class MusicThread extends Thread
{
@Override
public void run()
{
//播放音乐
System.out.println("开始播放");
//表示音乐文件
File f = new File("nv.mp3");
//第三方jar包 Player类
try
{
Player p = new Player(new FileInputStream(f)); //参数：文件输入流对象
// p.play();
}
catch (FileNotFoundException | JavaLayerException e)
{
e.printStackTrace();
}
}
}实现类：
import javazoom.jl.decoder.JavaLayerException;
import javazoom.jl.player.Player;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.Random;
import javax.swing.*;
public class MeteorFly extends JFrame
{
int AppletWidth, AppletHeight;
final int MAX = 6; // (~)流星的个数
final int SLEEP = 2; // 流星飞行的速度（数值越大，速度越慢）
final int COLORLV = 1; // (~)色阶（可改变光晕大小）
final int SIZE = 3; // (~)流星大小
private MyPanel panel;
public MeteorFly()
{
panel = new MyPanel();
this.setTitle("LOVE");
this.getContentPane()
.add(panel);
this.setSize(AppletWidth, AppletHeight); // 创建窗体
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
public static void main(String[] args)
{
new Thread()
{
@Override
public void run()
{
//声明一个File对象
File mp3 = new File("nv.mp3");
//创建一个输入流
FileInputStream fileInputStream = null;
try
{
fileInputStream = new FileInputStream(mp3);
//创建一个缓冲流
BufferedInputStream bufferedInputStream = new BufferedInputStream(fileInputStream);
//创建播放器对象，把文件的缓冲流传入进去
Player player = new Player(fileInputStream);
//调用播放方法进行播放
player.play();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (JavaLayerException e)
{
e.printStackTrace();
}
}
}.start();
new MeteorFly();
}
class MyPanel extends JPanel implements Runnable
{
Meteor p[];
BufferedImage OffScreen;
Graphics drawOffScreen;
Thread pThread;
Font drawFont = new Font("Arial", 0, 28);
public MyPanel()
{
//setBackground(Color.black); //窗体初始化
AppletWidth = Toolkit.getDefaultToolkit()
.getScreenSize()
.width;
AppletHeight = Toolkit.getDefaultToolkit()
.getScreenSize()
.height - 200;
p = new Meteor[MAX];
for (int i = 0; i < MAX; i++)
{
p[i] = new Meteor();
}
OffScreen = new BufferedImage(AppletWidth, AppletHeight
, BufferedImage.TYPE_INT_BGR);
drawOffScreen = OffScreen.getGraphics();
pThread = new Thread(this);
pThread.start();
new Thread()
{
@Override
public void run()
{
try
{
sleep(2000);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
str1 = "流星雨是世间宝藏，而你是我的人间理想";
while (true)
{
try
{
sleep(150);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
pos++;
if (pos > str1.length() - 1)
{
pos = str1.length() - 1;
break;
}
}
}
}.start();
}
int pos = 0;
String str1 = " ";
@Override
public void paintComponent(Graphics g)
{
super.paintComponents(g);
g.drawImage(OffScreen, 0, 0, this);
g.setColor(Color.pink);
g.setFont(new Font("宋体", Font.BOLD, 50));
g.drawString(str1.substring(0, pos + 1), 260, 700);
}
@Override
public void run()
{
while (true)
{
for (int i = 0; i < MAX; i++)
{
drawOffScreen.setColor(p[i].color); // RGB颜色
drawOffScreen.fillOval(p[i].x, p[i].y, SIZE, SIZE);
p[i].x += p[i].mx;
p[i].y += p[i].my;
int x = p[i].x;
int y = p[i].y;
int R = p[i].color.getRed(); // 提取颜色
int G = p[i].color.getGreen();
int B = p[i].color.getBlue();
while (true)
{
if (R == 0 && G == 0 && B == 0)
{
break;
}
R -= COLORLV; // 尾部颜色淡化
if (R < 0)
{
R = 0;
}
G -= COLORLV;
if (G < 0)
{
G = 0;
}
B -= COLORLV;
if (B < 0)
{
B = 0;
}
Color color = new Color(R, G, B);
x -= p[i].mx; // 覆盖尾部
y -= p[i].my;
drawOffScreen.setColor(color);
drawOffScreen.fillOval(x, y, SIZE, SIZE);
}
if (x > AppletWidth || y > AppletHeight)
{ // 流星飞出窗口，重置流星
p[i].reset();
}
}
repaint();
try
{
Thread.sleep(SLEEP);
}
catch (InterruptedException e)
{}
}
}
}
class Meteor
{ // 流星类
int x, y; // 流星的位置
int mx, my; // 下落速度
Color color; // 流星颜色
Random r = new Random();
public Meteor()
{
reset();
}
public void reset()
{
int rand = (int)(Math.random() * 100); //随机生成流星出现位置
if (rand > 35)
{
x = (int)(Math.random() * 600);
y = 0;
}
else
{
y = (int)(Math.random() * 150);
x = 0;
}
mx = r.nextInt(2) + 2; //随机生成下落速度和角度
my = 1;
color = new Color(
// 随机颜色
(new Double(Math.random() * 128))
.intValue() + 128
, (new Double(Math.random() * 128))
.intValue() + 128
, (new Double(Math.random() * 128))
.intValue() + 128);
}
}
}这样我们就实现了java浪漫表白流星图，再一次感觉到java的神奇之处，如果你想浪漫一些的，可以使用java进行表白哦!最后大家如果想要了解更多java实例知识，敬请关注奇Q工具网。
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