急！300分求购一段Java源程序！

Question

要是我会java的话，我就自己去想这个算法了可关键我不会java

Answer 1

应该要用到java的3D包，可惜我对这个包也不熟。

Answer 2

up  呵呵~ 我是真的不懂！！！ X Y就行了？？？

Answer 3

http://www.java-cn.net/javatools/tools/an145chs.exe
那是一个java特效程序，安装后看看能不能发编，也许能对你有所帮助。

Answer 4

建议：螺旋上升的效果无须3D，使用图形学的坐标扭曲（shearing算法）。对于java来说，上升的动画效果只要创建一组图象缓冲区，不断循环播放即可（速度不必苛求）。
我很想为你解决问题，但是由于近来比较忙，只能提些点子，如果哪位兄弟有空，可以帮一下忙。上面的建议仅供参考。

Answer 5

哇，我也是学c++的，最近刚学java，因为被老板逼着做东西，看到大家这么热情，很感动呀~

Answer 6

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;public class Circle extends JFrame implements Runnable {
    private JPanel contentPane;
    private BorderLayout borderLayout1 = new BorderLayout();
    private JButton jButton1 = new JButton();
    private MyPanel panel1 = new MyPanel();
    Thread myThread = null;
    MyChar[] str = new MyChar[20];
    int yStep = 0;
    int xCenter = 150;    //Construct the frame
    public Circle() {
        enableEvents(AWTEvent.WINDOW_EVENT_MASK);
        try {
            jbInit();
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }
    //Component initialization
    private void jbInit() throws Exception  {
        //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
        contentPane = (JPanel) this.getContentPane();
        jButton1.setText("开始");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(ActionEvent e) {
                jButton1_actionPerformed(e);
            }
        });
        contentPane.setLayout(borderLayout1);
        this.setSize(new Dimension(400, 423));
        this.setTitle("Frame Title");
        contentPane.add(jButton1, BorderLayout.SOUTH);
        contentPane.add(panel1, BorderLayout.CENTER);        //initial
        for(int i=0;i<str.length;i++) {
            str[i] = new MyChar(i,(char)(65+i));
        }
        setPos();
    }
    //Overridden so we can exit when window is closed
    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
            System.exit(0);
        }
    }    public void run() {
        Thread theThread = Thread.currentThread();        while(true) {
            setPos();
            panel1.repaint();
            try {
                theThread.sleep(300);
            } catch(InterruptedException ie) {
                ie.printStackTrace();
            }
        }
    }    public void setPos() {
        yStep+=3;
        for(int i=0;i<str.length;i++) {
            str[i].setPosition(300-(20-i*2+yStep));
        }
    }    void jButton1_actionPerformed(ActionEvent e) {
        if(myThread == null) {
            myThread = new Thread(this);
            myThread.start();
        }
    }    class MyChar {
        int x,y;
        char ch;
        int index = 0;
        boolean direct = false;        public MyChar(int index,char ch) {
            this.ch = ch;
            this.index = index;
        }        public void setPosition(int y) {
            if(direct) {
                index++;
                if(index == str.length)
                    direct = false;
            } else {
                index--;
                if(index == 0)
                    direct = true;
            }
            this.x = (int)(Math.cos(((double)((index/10.0f)*Math.PI))) * 40.0f)+xCenter;
            this.y = y;
        }        public void draw(Graphics g) {
            g.drawString(new String(new char[]{ch}),x,y);
        }
    }    class MyPanel extends JPanel {
        public MyPanel() {
        }        public void paint(Graphics g) {
            g.setColor(Color.white);
            g.fillRect(0,0,400,500);
            g.setColor(Color.black);
            for(int i=0;i<str.length;i++) {
                str[i].draw(g);
            }
        }
    }    public static void main(String[] args) {
        Circle frame = new Circle();
        frame.validate();
        frame.setVisible(true);
    }
}

Answer 7

谢谢 nil2000(我爱北京天安门)
我试试看，看能否实现

Answer 8

To nil2000(我爱北京天安门)：
怎么汉字不听使唤了？
能否给个输入窗口
填入一串汉字，点开始
然后螺旋上升？

Answer 9

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;public class Circle extends JFrame implements Runnable {
    private JPanel contentPane;
    private BorderLayout borderLayout1 = new BorderLayout();
    private JButton jButton1 = new JButton();
    private MyPanel panel1 = new MyPanel();
    Thread myThread = null;
    MyChar[] str = null;
    int yStep = 0;
    int xCenter = 190;
    private JTextField jTextField1 = new JTextField();    //Construct the frame
    public Circle() {
        enableEvents(AWTEvent.WINDOW_EVENT_MASK);
        try {
            jbInit();
        }
        catch(Exception e) {
            e.printStackTrace();
        }
    }
    //Component initialization
    private void jbInit() throws Exception  {
        //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
        contentPane = (JPanel) this.getContentPane();
        jButton1.setText("开始");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(ActionEvent e) {
                jButton1_actionPerformed(e);
            }
        });
        contentPane.setLayout(borderLayout1);
        this.setSize(new Dimension(400, 423));
        this.setTitle("Frame Title");
        jTextField1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(ActionEvent e) {
                jTextField1_actionPerformed(e);
            }
        });
        contentPane.add(jButton1, BorderLayout.SOUTH);
        contentPane.add(jTextField1, BorderLayout.NORTH);
        contentPane.add(panel1, BorderLayout.CENTER);    }
    //Overridden so we can exit when window is closed
    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);
        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
            System.exit(0);
        }
    }    public void run() {
        Thread theThread = Thread.currentThread();        while(true) {
            setPos();
            panel1.repaint();
            try {
                theThread.sleep(300);
            } catch(InterruptedException ie) {
                ie.printStackTrace();
            }
        }
    }    public void setPos() {
        yStep+=3;
        for(int i=0;i<str.length;i++) {
            str[i].setPosition(300-(20-i*2+yStep));
        }
        if(yStep >= 230)
            yStep = 0;
    }    void jButton1_actionPerformed(ActionEvent e) {
        if(str == null) {
            jTextField1_actionPerformed(null);
        }
        if(str == null)
            return;
        if(myThread == null) {
            myThread = new Thread(this);
            myThread.start();
        }
    }    class MyChar {
        int x,y;
        char ch;
        int index = 0;
        boolean direct = false;        public MyChar(int index,char ch) {
            this.ch = ch;
            this.index = index;
            if(index == 0)
                direct = true;
        }        public void setPosition(int y) {
            if(direct) {
                index++;
                if(index == str.length)
                    direct = false;
            } else {
                index--;
                if(index == 0)
                    direct = true;
            }
            this.x = (int)(Math.cos(((double)((index/((float)str.length))*Math.PI))) * ((float)str.length * 6))+xCenter;
            this.y = y;
        }        public void draw(Graphics g) {
            g.drawString(new String(new char[]{ch}),x,y);
        }
    }    class MyPanel extends JPanel {
        public MyPanel() {
        }        public void paint(Graphics g) {
            g.setColor(Color.white);
            g.fillRect(0,0,400,500);
            g.setColor(Color.black);
            if(str == null)
                return;
            for(int i=0;i<str.length;i++) {
                str[i].draw(g);
            }
        }
    }    public static void main(String[] args) {
        Circle frame = new Circle();
        frame.validate();
        frame.setVisible(true);
    }    void jTextField1_actionPerformed(ActionEvent e) {
        //initial
        yStep = 0;
        char[] charArr = jTextField1.getText().toCharArray();
        str = new MyChar[charArr.length];
        for(int i=0;i<charArr.length;i++) {
            str[i] = new MyChar(i,charArr[i]);
        }
        setPos();
    }
}

Answer 10

很牛啊，你学了多长时间java?