国产在线播放一区,精品一区二区三区的国产在线观看 ,久久国产精品久久精品

代碼如下：

import java.util.Scanner;

public class Perceptron {
    private static int N = 3;
    private static int n = 2;
    private static double[][] X = null;
    private static double[] Y = null;
    private static double[][] G = null;
    private static double[] A = null;
    private static double[] W = null;
    private static double B = 0;
    private static double fi = 0.5;

    private static boolean check(int id) {
        double ans = B;
        for(int i=0;i<N;i++)
            ans += A[i] * Y[i] * G[i][id];
        if(ans * Y[id] > 0) return true;
        return false;
    }


    public static void solve() {
        Scanner in = new Scanner(System.in);
        System.out.print("input N:"); N = in.nextInt();
        System.out.print("input n:"); n = in.nextInt();

        X = new double[N][n];
        Y = new double[N];
        G = new double[N][N];

        System.out.println("input N * n datas X[i][j]:");
        for(int i=0;i<N;i++)
            for(int j=0;j<n;j++)
                X[i][j] = in.nextDouble();
        System.out.println("input N datas Y[i]");
        for(int i=0;i<N;i++)
            Y[i] = in.nextDouble();

        for(int i=0;i<N;i++)
            for(int j=0;j<N;j++) {
                G[i][j] = 0;
                for(int k=0;k<n;k++)
                    G[i][j] += X[i][k] * X[j][k];
            }

        A = new double[N];
        W = new double[n];
        for(int i=0;i<n;i++) A[i] = 0;
        B = 0;

        boolean ok = true;
        while(ok == true) {
            ok = false;
            //這里在原來算法的基礎(chǔ)上不斷地將fi縮小，以避免跳來跳去一直達(dá)不到要求的點的效果。
            for(int i=0;i<N;i++) {
                //System.out.println("here " + i);
                while(check(i) == false) {
                    ok = true;
                    A[i] += fi;
                    B += fi * Y[i];
                    //debug();
                }
            }
            fi *= 0.5;
        }

        for(int i=0;i<n;i++)
            W[i] = 0;
        for(int i=0;i<N;i++)
            for(int j=0;j<n;j++)
                W[j] += A[i] * Y[i] * X[i][j];
    }

    public static void main(String[] args) {
        solve();
        System.out.print("W = [");
        for(int i=0;i<n-1;i++) System.out.print(W[i] + ", ");
        System.out.println(W[n-1] + "]");
        System.out.println("B = " + B);
    }
}

posted @ 2015-03-20 11:34 marchalex 閱讀(863) | 評論 (0) | 編輯收藏

感知機學(xué)習(xí)算法的原始形式及其Java實現(xiàn)

實現(xiàn)時遇到一個問題，就是fi的值的設(shè)定問題，因為我們采用隨機梯度下降法，一方面這節(jié)省了時間，但是如果fi值亙古不變的話可能會面臨跳來跳去一直找不到答案的問題，所以我這里設(shè)定他得知在每一輪之后都會按比例減?。╢i *= 0.5;），大家可以按自己的喜好自由設(shè)定。

import java.util.Scanner;

public class Perceptron {
    private static int N = 3;
    private static int n = 2;
    private static double[][] X = null;
    private static double[] Y = null;
    private static double[] W = null;
    private static double B = 0;
    private static double fi = 0.5;

    private static boolean check(int id) {
        double ans = B;
        for(int i=0;i<n;i++)
            ans += X[id][i] * W[i];
        if(ans * Y[id] > 0) return true;
        return false;
    }

    private static void debug() {
        System.out.print("debug: W");
        for(int i=0;i<n;i++) System.out.print(W[i] + " ");
        System.out.println("/ B : " + B);
    }

    public static void solve() {
        Scanner in = new Scanner(System.in);
        System.out.print("input N:"); N = in.nextInt();
        System.out.print("input n:"); n = in.nextInt();

        X = new double[N][n];
        Y = new double[N];
        W = new double[n];

        System.out.println("input N * n datas X[i][j]:");
        for(int i=0;i<N;i++)
            for(int j=0;j<n;j++)
                X[i][j] = in.nextDouble();
        System.out.println("input N datas Y[i]");
        for(int i=0;i<N;i++)
            Y[i] = in.nextDouble();


        for(int i=0;i<n;i++) W[i] = 0;
        B = 0;

        boolean ok = true;
        while(ok == true) {
            ok = false;
            //這里在原來算法的基礎(chǔ)上不斷地將fi縮小，以避免跳來跳去一直達(dá)不到要求的點的效果。
            for(int i=0;i<N;i++) {
                //System.out.println("here " + i);
                while(check(i) == false) {
                    ok = true;
                    for(int j=0;j<n;j++)
                        W[j] += fi * Y[i] * X[i][j];
                    B += fi * Y[i];
                    //debug();
                }
            }
            fi *= 0.5;
        }
    }

    public static void main(String[] args) {
        solve();
        System.out.print("W = [");
        for(int i=0;i<n-1;i++) System.out.print(W[i] + ", ");
        System.out.println(W[n-1] + "]");
        System.out.println("B = " + B);
    }
}

posted @ 2015-03-20 11:08 marchalex 閱讀(636) | 評論 (0) | 編輯收藏

JFrame的一個應(yīng)用--座位圖

這個應(yīng)用主要是為了生成座位的安排。程序運行后，在菜單欄中選擇打開文件，然后我們假設(shè)文件的格式為：每一行一個人名。
例：

風(fēng)清揚

無名僧

東方不敗

任我行

喬峰

虛竹

段譽

楊過

郭靖

黃蓉

周伯通

小龍女

這個程序的特點如下：
在JFrame中添加了菜單欄；
在畫布中添加了諸多元素；
最后會將圖片通過圖片緩存保存到本地“frame.png”中。
代碼如下：

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;

public class FrameWork extends JFrame {

    private static final double pi = Math.acos(-1.0);
    private static final int Width = 1000;
    private static final int Height = 600;
    private static JFrame frame = null;

    private static int personNumber = 15;
    private static String[] names = new String[100];

    public FrameWork() {
        frame = new JFrame("Java菜單欄");

        //JList list = new JList();
        //frame.add(list);

        JMenuBar menuBar = new JMenuBar();
        frame.setJMenuBar(menuBar);

        JMenu fileMenu = new JMenu("文件");
        JMenu openMenu = new JMenu("打開");
        JMenuItem openItem = new JMenuItem("文件");
        openMenu.add(openItem);
        openItem.addActionListener(new MyAction());
        fileMenu.add(openMenu);
        menuBar.add(fileMenu);

        frame.setLocationRelativeTo(null);
        frame.setSize(Width, Height);
        frame.setLocation(100, 100);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //JPanel panel = new ImagePanel();
        //panel.setBounds(0, 0, Width, Height);
        //frame.getContentPane().add(panel);

        frame.setVisible(true);
    }

    private static int getNumber1(int i) {
        int n = personNumber;
        if((n-1)/2*2-2*i >= 0) return (n-1)/2*2 - 2*i;
        return (i-(n-1)/2)*2-1;
    }

    private static int getNumber2(int i) {
        if(i*2+1 <= personNumber) return i*2;
        return 2*(personNumber-i)-1;
    }

    private class MyAction implements ActionListener {
        public void actionPerformed(ActionEvent evt) {
            //Object s = evt.getSource();
            JFileChooser jfc=new JFileChooser();
            jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
            jfc.showDialog(new JLabel(), "選擇");
            File file=jfc.getSelectedFile();
            /*if(file.isDirectory()){
                System.out.println("文件夾:"+file.getAbsolutePath());
            }else if(file.isFile()){
                System.out.println("文件:"+file.getAbsolutePath());
            }*/
            personNumber = 0;
            BufferedReader reader;
            try {
                reader = new BufferedReader(new FileReader(file.getAbsolutePath()));
                while((names[personNumber]=reader.readLine()) != null) {
                    personNumber ++;
                }
                reader.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
            JPanel panel = new ImagePanel();
            panel.setBounds(0, 0, Width, Height);
            frame.getContentPane().add(panel);
            frame.setVisible(true);
            //System.out.println(personNumber);
            //for(int i=0;i<personNumber;i++)
                //System.out.println(names[i]);
            BufferedImage  bi = new BufferedImage(frame.getWidth(), frame.getHeight(), BufferedImage.TYPE_INT_ARGB);
            Graphics2D  g2d = bi.createGraphics();
            frame.paint(g2d);
            try {
                ImageIO.write(bi, "PNG", new File("D:\\frame.png"));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    class ImagePanel extends JPanel {
        public void paint(Graphics g) {
            super.paint(g);
            g.setColor(Color.white);
            g.fillRect(0, 0, Width, Height);
            g.setColor(Color.black);
            int delx = (Width - 20) / (personNumber + 1);
            for(int i=0;i<personNumber;i++) {
                int x = i * delx + 10;
                g.drawRect(x, 10, delx, 20);
                //String s = "" + getNumber1(i);
                int id = getNumber1(i);
                String s = names[id];
                g.drawString(s, x+2, 22);

                //s =  "" + getNumber2(i);
                id = getNumber2(i);
                s = names[id];
                int x0 = 440, y0 = 285, r = 170;
                int xx = (int) (x0 - r * Math.sin(pi*2*i/personNumber));
                int yy = (int) (y0 - r * Math.cos(pi*2*i/personNumber));
                g.drawString(s, xx, yy);
            }
            g.drawOval(300, 130, 300, 300);

        }
    }

    public static void main(String[] args) {
        new FrameWork();
    }
}

posted @ 2015-03-18 20:20 marchalex 閱讀(288) | 評論 (0) | 編輯收藏

Java實現(xiàn)菜單欄功能

寫了一個FrameWork類實現(xiàn)了菜單欄，并且為菜單欄里的Item添加事件監(jiān)聽，實現(xiàn)了選擇文件的功能。

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

public class FrameWork extends JFrame {

    private static final int Width = 1000;
    private static final int Height = 600;
    private static JFrame frame = null;
    private static FlowLayout flowLayout = null;

    public FrameWork() {
        frame = new JFrame("Java菜單欄");
        flowLayout = new FlowLayout(FlowLayout.CENTER);
        flowLayout.setHgap(20);
        flowLayout.setVgap(30);
        frame.setLayout(flowLayout);

        JMenuBar menuBar = new JMenuBar();
        frame.setJMenuBar(menuBar);

        JMenu fileMenu = new JMenu("文件");
        JMenu openMenu = new JMenu("打開");
        JMenuItem openItem = new JMenuItem("文件");
        openMenu.add(openItem);
        openItem.addActionListener(new MyAction());
        fileMenu.add(openMenu);
        menuBar.add(fileMenu);



        frame.setVisible(true);
        frame.setSize(Width, Height);
        frame.setLocation(100, 100);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    private class MyAction implements ActionListener {
        public void actionPerformed(ActionEvent evt) {
            Object s = evt.getSource();
            JFileChooser jfc=new JFileChooser();
            jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
            jfc.showDialog(new JLabel(), "選擇");
            File file=jfc.getSelectedFile();
            if(file.isDirectory()){
                System.out.println("文件夾:"+file.getAbsolutePath());
            }else if(file.isFile()){
                System.out.println("文件:"+file.getAbsolutePath());
            }
            System.out.println(jfc.getSelectedFile().getName());
        }
    }

    public static void main(String[] args) {
        new FrameWork();
    }
}

posted @ 2015-03-18 12:51 marchalex 閱讀(947) | 評論 (0) | 編輯收藏

JFileChooser (Java Swing提供的文件選擇對話框)

JFileChooser()
構(gòu)造一個指向用戶默認(rèn)目錄的 JFileChooser。

JFileChooser(File currentDirectory)
使用給定的 File 作為路徑來構(gòu)造一個 JFileChooser。

setFileSelectionMode(int mode)
設(shè)置 JFileChooser，以允許用戶只選擇文件、只選擇目錄，或者可選擇文件和目錄。

mode參數(shù)：FILES_AND_DIRECTORIES 指示顯示文件和目錄。

FILES_ONLY 指示僅顯示文件。

DIRECTORIES_ONLY 指示僅顯示目錄。

showDialog(Component parent,String approveButtonText)
彈出具有自定義 approve 按鈕的自定義文件選擇器對話框。

showOpenDialog(Component parent)
彈出一個 "Open File" 文件選擇器對話框。

showSaveDialog(Component parent)
彈出一個 "Save File" 文件選擇器對話框。

setMultiSelectionEnabled(boolean b)
設(shè)置文件選擇器，以允許選擇多個文件。

getSelectedFiles()
如果將文件選擇器設(shè)置為允許選擇多個文件，則返回選中文件的列表(File[])。

getSelectedFile()
返回選中的文件。

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class FileChooser extends JFrame implements ActionListener{
    JButton open=null;
    public static void main(String[] args) {
        new FileChooser();
    }
    public FileChooser(){
        open=new JButton("open");
        this.add(open);
        this.setBounds(400, 200, 100, 100);
        this.setVisible(true);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        open.addActionListener(this);
    }
    @Override
    public void actionPerformed(ActionEvent e) {
        // TODO Auto-generated method stub
        JFileChooser jfc=new JFileChooser();
        jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
        jfc.showDialog(new JLabel(), "選擇");
        File file=jfc.getSelectedFile();
        if(file.isDirectory()){
            System.out.println("文件夾:"+file.getAbsolutePath());
        }else if(file.isFile()){
            System.out.println("文件:"+file.getAbsolutePath());
        }
        System.out.println(jfc.getSelectedFile().getName());

    }

}

posted @ 2015-03-18 12:35 marchalex 閱讀(563) | 評論 (0) | 編輯收藏

JFrame展示圖片（包括動圖）

今天寫了一個在JFrame顯示圖片（包括動圖）的小程序。
主要用到了JPanel類，JPanel類有一個paint()方法，用于實現(xiàn)畫圖。在這里paint()方法里寫的就是調(diào)用一張圖片，然后就實現(xiàn)了在JFrame中顯示一張圖片。
其原理其實是：在JFrame對象中放一個JPanel對象，在JPanel中實現(xiàn)畫圖。代碼如下：

import java.awt.Graphics;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class ImageApp extends JFrame {
    public ImageApp() {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setSize(400, 300);
        setResizable(false);
        getContentPane().setLayout(null);
        JPanel panel = new ImagePanel();
        panel.setBounds(0, 0, 400, 300);
        getContentPane().add(panel);
        setVisible(true);
    }

    public static void main(String[] args) {
        new ImageApp();
    }

    class ImagePanel extends JPanel {
        public void paint(Graphics g) {
            super.paint(g);
            ImageIcon icon = new ImageIcon("D:\\testapp.jpg");
            g.drawImage(icon.getImage(), 0, 0, 400, 300, this);
        }
    }
}

動圖如下：（D:\\testapp.jpg）

posted @ 2015-03-13 11:32 marchalex 閱讀(3305) | 評論 (0) | 編輯收藏

基于iciba的英漢翻譯助手（離線版，基于文本）

在之前寫過一個TranslateHelper類用于在線翻譯英文單詞。
我之前寫過一個單詞翻譯大師用于將文件中出現(xiàn)的所有單詞存儲在另一個文件中。存儲的格式如下：
word: explain
如：

apple: 蘋果；蘋果樹；蘋果公司

banana: 香蕉；芭蕉屬植物；喜劇演員
我們假設(shè)這里獲取單詞的原文件為D:|test_english.txt

存儲單詞的文件為D:\word_lib.txt

這次寫的TranslateHelper2類就是在此基礎(chǔ)上編寫的一個英漢詞典的離線版本。
在此之前我寫了一個WordFinder類用于獲取D:\word_lib.txt下的特定單詞及其解釋（沒有的話返回null）。
WordFinder.java

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.StringTokenizer;

public class WordFinder {
    public static String find(String word) throws Exception {
        String filename = new String("D:\\word_lib.txt");
        BufferedReader reader = new BufferedReader(new FileReader(filename));
        String line = "";
        while((line = reader.readLine()) != null) {
            StringTokenizer st = new StringTokenizer(line, ":");
            String key = st.nextToken();
            if(key.equals(word)) {
                return st.nextToken();
            }
        }
        return null;
    }
    public static void main(String[] args) throws Exception {
        String ans = find("apple");
        System.out.println(ans);
    }
}

下面是TranslateHelper2類，其詞庫是基于文件D:\word_lib.txt的，如下：
新增了一個按鍵可在線更新詞庫,即D:\word_lib.txt里面的內(nèi)容（在現(xiàn)實點按鍵可更新）。

TranslateHelper2.java

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.HttpURLConnection;
import java.net.URL;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class TranslateHelper2 extends JFrame {
     private static final int Width = 500;
     private static final int Height = 220;
     private static JFrame frame = null;
     private static FlowLayout flowLayout = null;

     private static JLabel label = null;
     private static JTextField wordText = null;
     private static JTextField explainText = null;
     private static JButton button = null;
     private static JButton new_button = null;

     public TranslateHelper2() {
         frame = new JFrame("Translate Helper");
         flowLayout = new FlowLayout(FlowLayout.CENTER);
         flowLayout.setHgap(20);
         flowLayout.setVgap(30);
        frame.setLayout(flowLayout);
        label = new JLabel("單詞：");
        wordText = new JTextField(10);
        explainText = new JTextField(40);
        button = new JButton("提交");
        new_button = new JButton("在線時點擊可更新");

        frame.add(label);
        frame.add(wordText);
        frame.add(button);
        frame.add(explainText);
        frame.add(new_button);

        button.addActionListener(new ButtonAction());
        new_button.addActionListener(new ButtonAction());

        frame.setVisible(true);
        frame.setSize(Width, Height);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     }

     private class ButtonAction implements ActionListener {
            public void actionPerformed(ActionEvent evt) {
                Object s = evt.getSource();
                //System.out.println("hello");
                if(s == button) {
                    String word = wordText.getText();

                    try {
                        String _word = word;
                        String _explain = WordFinder.find(word);
                        wordText.setText(_word);
                        explainText.setText(_explain);

                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                } else if(s == new_button) {
                    try {
                        TranslateMaster.translateAllLocal("D:\\test_english.txt", "D:\\word_lib.txt");
                    } catch (Exception e) {
                        return;
                    }
                }
            }
    }
    public static void main(String[] args) {
        new TranslateHelper2();
    }
}

posted @ 2015-03-11 13:25 marchalex 閱讀(409) | 評論 (0) | 編輯收藏

Java找出某一目錄下包含某一關(guān)鍵詞的所有文件

之前寫過FileHelper類，其中的readFile和writeFile方法分別用于文件的讀和寫。這次在原來的基礎(chǔ)上添加了如下方法：

listFiles

用于遞歸地查找一個目錄下的所有文件并輸出。

hasWords

用于判斷一個文件中是否含有某一關(guān)鍵詞。

findFilesContainsWords

遞歸地查找某一目錄下所有包含某一關(guān)鍵字的所有文件（這里我加了一個過濾器，即我只找了所有后綴為“.h”的文件）。

加了新功能后的FileHelper類代碼如下：

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;

public class FileHelper {
    public static String readFile(String filename) throws Exception {
        BufferedReader reader = new BufferedReader(new FileReader(filename));
        String ans = "", line = null;
        while((line = reader.readLine()) != null){
            ans += line + "\r\n";
        }
        reader.close();
        return ans;
    }
    public static void writeFile(String content, String filename) throws Exception {
        BufferedWriter writer  = new BufferedWriter(new FileWriter(filename));
        writer.write(content);
        writer.flush();
        writer.close();
    }

    public static void listFiles(String path) {
        File file = new File(path);
        File[] files = file.listFiles();
        if(files == null)
            return;
        for(File f : files) {
            if(f.isFile()) {
                System.out.println(f.toString());
            } else if(f.isDirectory()) {
                System.out.println(f.toString());
                listFiles(f.toString());
            }
        }
    }
    public static boolean hasWords(String file, String words) {
        try {
            String s = readFile(file);
            int w_len = words.length();
            int len = s.length();
            for(int i=0;i+w_len<=len;i++) {
                if(s.substring(i, i+w_len).equals(words))
                    return true;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return false;
    }
    public static void findFilesContainsWords(String path, String words) throws Exception {
        File file = new File(path);
        File[] files = file.listFiles();
        if(files == null) return;
        for(File f : files) {
            if(f.isFile()) {
                String s = f.toString();
                int s_len = s.length();
                if(s.substring(s_len-2, s_len).equals(".h") == false) continue; // add filter
                if(hasWords(f.toString(), words))
                    System.out.println(f.toString());
            } else if(f.isDirectory()) {
                findFilesContainsWords(f.toString(), words);
            }
        }
    }

    public static void main(String[] args) throws Exception {
        //String ans = readFile("D:\\input.txt");
        //System.out.println(ans);
        //writeFile(ans, "D:\\output.txt");
        //findFilesContainsWords("D:\\clamav-0.98.6", "scanmanager");//在IDE中找
        if(args.length != 1) {
            System.out.println("Usage : \"D:\\clamav-0.98.6\" words");
            return;
        }
        findFilesContainsWords("D:\\clamav-0.98.6", args[0]);//在命令行中找
    }
}

posted @ 2015-03-10 16:11 marchalex 閱讀(590) | 評論 (0) | 編輯收藏

Java實現(xiàn)基于UDP的聊天室軟件

這是我很多月以前學(xué)習(xí)馬士兵的Java教學(xué)視頻的時候在教程的基礎(chǔ)上稍微改進(jìn)了一點的一個聊天室軟件。
聊天室軟件分為ChatClient類和ChatServer類。
ChatServer相當(dāng)于一個服務(wù)器。
ChatClient類相當(dāng)于一個客戶端。
用戶可以通過客戶端進(jìn)行聊天。
客戶端登錄時會詢問你的姓名，輸入姓名后大家就可以基于此聊天室軟件進(jìn)行聊天了。

CHatClient.java

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;

public class ChatClient extends Frame {
    Socket socket = null;
    DataOutputStream dos = null;
    DataInputStream dis = null;
    private boolean bConnected = false;
    private String name;
    //private boolean named = false;

    TextField tfTxt = new TextField();
    TextArea taContent = new TextArea();

    Thread tRecv = new Thread(new RecvThread());

    public static void main(String[] args) {
        new ChatClient().launchFrame();

    }

    public void launchFrame() {
        setLocation(400, 300);
        this.setSize(300, 300);
        add(tfTxt, BorderLayout.SOUTH);
        add(taContent, BorderLayout.NORTH);
        pack();
        this.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                disconnect();
                System.exit(0);
            }
        });

        setVisible(true);
        connect();

        tfTxt.addActionListener(new TFListener());

        //new Thread(new RecvThread()).start();
        tRecv.start();
    }

    public void connect() {
            try {
                socket = new Socket("127.0.0.1", 8888);
                dos = new DataOutputStream(socket.getOutputStream());
                dis = new DataInputStream(socket.getInputStream());
                System.out.println("connected!");
                taContent.setText("你叫什么名字?\n");
                bConnected  = true;
            } catch (UnknownHostException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
    }

    public void disconnect() {
        try {
            dos.close();
            dis.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        /*
        try {
            bConnected = false;
            tRecv.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {
            try {
                dos.close();
                dis.close();
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        */
    }

    private class TFListener implements ActionListener {

        private boolean named = false;

        public void actionPerformed(ActionEvent e) {

            String str = tfTxt.getText().trim();
            //taContent.setText(str);
            tfTxt.setText("");

            if(named == false) {
                named = true;
                name = str;
                try {
                    dos.writeUTF(name+" is coming!");
                    dos.flush();
                } catch (IOException e1) {
                    e1.printStackTrace();
                }
                return;
            }

            try {
                //dos = new DataOutputStream(socket.getOutputStream());
                dos.writeUTF(name + ":" + str);
                dos.flush();                    //dos.close();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }

    }

    private class RecvThread implements Runnable {

        private String name;

        public void run() {
            /*
            while(bConnected) {
                try {
                    String str = dis.readUTF();
                    //System.out.println(str);
                    taContent.setText(taContent.getText()+str+'\n');
                } catch (SocketException e) {
                    System.out.println("退出了,bye!");
                } catch (EOFException e) {
                    System.out.println("退出了,bye - bye!");
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            */
            try {
                while(bConnected) {
                    String str = dis.readUTF();
                    //System.out.println(str);
                    taContent.setText(taContent.getText()+str+'\n');
                }
            } catch (SocketException e) {
                System.out.println("退出了,bye!");
            } catch (EOFException e) {
                System.out.println("退出了,bye - bye!");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }

}

ChatServer.java

import java.io.*;
import java.net.*;
import java.util.*;

public class ChatServer {
    boolean started = false;
    ServerSocket ss = null;

    List<Client> clients = new ArrayList<Client>();

    public static void main(String[] args) {
        new ChatServer().start();
    }

    public void start() {
        try {
            ss = new ServerSocket(8888);
            started = true;
        } catch (BindException e) {
            System.out.println("端口使用中

");
            System.out.println("請關(guān)掉相應(yīng)程序并重新運行服務(wù)器!");
            System.exit(0);
        } catch (IOException e) {
            e.printStackTrace();
        }

        try {
            while(started) {
                Socket s = ss.accept();
                Client c = new Client(s);
                System.out.println("a client connected!");
                new Thread(c).start();
                clients.add(c);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                ss.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }

    class Client implements Runnable {
        private Socket s;
        private DataInputStream dis = null;
        private DataOutputStream dos = null;
        private boolean bConnected = false;

        public Client(Socket s) {
            this.s = s;
            try {
                dis = new DataInputStream(s.getInputStream());
                dos = new DataOutputStream(s.getOutputStream());
                bConnected = true;
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        public void send(String str) {
            try {
                dos.writeUTF(str);
            } catch (IOException e) {
                clients.remove(this);
                System.out.println("對方退出了！我從List里面去掉了！");
                //e.printStackTrace();
            }
        }

        public void run() {
            try {
                while(bConnected) {
                    String str = dis.readUTF();
                    System.out.println(str);
                    for(int i=0;i<clients.size();i++) {
                        Client c = clients.get(i);
                        c.send(str);
                    }
                    /*
                    for(Iterator<Client> it = clients.iterator(); it.hasNext(); ) {
                        Client c = it.next();
                        c.send(str);
                    }
                    */
                    /*
                    Iterator<Client> it = clients.iterator();
                    while(it.hasNext()) {
                        Client c = it.next();
                        c.send(str);
                    }
                    */
                }
            } catch (EOFException e) {
                System.out.println("Client closed!");
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                try {
                    if(dis != null) dis.close();
                    if(dos != null) dos.close();
                    if(s != null) {
                        s.close();
                        s = null;
                    }
                } catch (IOException e1) {
                    e1.printStackTrace();
                }
            }
        }
    }

}

posted @ 2015-03-09 08:39 marchalex 閱讀(577) | 評論 (0) | 編輯收藏

基于iciba的英漢翻譯助手（JFrame版）

上次寫了一個基于iciba的英漢翻譯，這次在原來的基礎(chǔ)上加了一個窗口，實現(xiàn)了TranslateHelper類。
效果如下：

代碼如下：

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class TranslateHelper extends JFrame {
     private static final int Width = 500;
     private static final int Height = 200;
     private static JFrame frame = null;
     private static FlowLayout flowLayout = null;

     private static JLabel label = null;
     private static JTextField wordText = null;
     private static JTextField explainText = null;
     private static JButton button = null;

     public TranslateHelper() {
         frame = new JFrame("Translate Helper");
         flowLayout = new FlowLayout(FlowLayout.CENTER);
         flowLayout.setHgap(20);
         flowLayout.setVgap(30);
        frame.setLayout(flowLayout);
        label = new JLabel("單詞：");
        wordText = new JTextField(10);
        explainText = new JTextField(40);
        button = new JButton("提交");

        frame.add(label);
        frame.add(wordText);
        frame.add(button);
        frame.add(explainText);

        button.addActionListener(new ButtonAction());

        frame.setVisible(true);
        frame.setSize(Width, Height);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     }

     private class ButtonAction implements ActionListener {
            public void actionPerformed(ActionEvent evt) {
                //Object s = evt.getSource();
                //System.out.println("hello");
                String word = wordText.getText();

                try {
                    String _word = EnglishChineseTranslater.getWordName(word);
                    String _explain = EnglishChineseTranslater.getTranslation(word);
                    wordText.setText(_word);
                    explainText.setText(_explain);

                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
    }
    public static void main(String[] args) {
        new TranslateHelper();
    }
}

posted @ 2015-03-08 18:47 marchalex 閱讀(208) | 評論 (0) | 編輯收藏

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