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 import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import sun.net.TelnetOutputStream;
import sun.net.TelnetInputStream;
import sun.net.ftp.FtpClient;
public class download ...{
    String localfilename;
    String remotefilename;
    FtpClient ftpClient;
    // server£º·þÎñÆ÷Ãû×Ö
    // user£ºÓû§Ãû
    // password£ºÃÜÂë
    // path£º·þÎñÆ÷ÉϵÄ·¾¶
    public void connectServer(String ip, int port, String user,
            String password, String path) ...{
        try ...{
            ftpClient = new FtpClient();
            ftpClient.openServer(ip, port);
            ftpClient.login(user, password);
            System.out.println("login success!");
            if (path.length() != 0)
                ftpClient.cd(path);
            ftpClient.binary();
        } catch (IOException ex) ...{
            System.out.println("not login");
            System.out.println(ex);
        }
    }
    public void closeConnect() ...{
        try ...{
       &


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TaxTest.java
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import javax.swing.JOptionPane;
public class TestTax{
public static void main(String[] args){
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