java实现英文翻译程序

/*文件载入类，将源文件中的内容输出到字节数组中*/
package zhidao3_2;
import java.io.FileInputStream;
import java.io.File;
public class FileLoad {
 public static byte[] getContent(String fileName)throws Exception{
 File file = new File(fileName);
 if(!file.exists()){
  System.out.println("输入有误，该文件不存在");
 }
 FileInputStream fis = new FileInputStream(file);
 int length = (int)file.length();
 byte[] data = new byte[length];
 fis.read(data);
 fis.close();
 return data;
 }
}

/*文件翻译，将字节数组变为字符串，分离出其中的单词，然后翻译为对应的汉字，去掉空格，变为字符串*/
package zhidao3_2;
import java.util.StringTokenizer;
import java.util.Properties;
import java.io.*;
public class TxtTrans {
 private Properties pps;
 public TxtTrans(){
 loadCiku();
 }
 public void loadCiku(){
 pps = new Properties();
 try{
  FileReader fis = new FileReader("g:/ciku.txt");//以字符载入时没有乱码，以字节载入时出现了乱码
  pps.load(fis);
  fis.close();
 }catch(Exception ex){
  ex.printStackTrace(System.out);
  System.out.println("载入词库时出错");
 }
 //System.out.println(pps.get("china")) ;
 
 }
 public String trans(byte[] data){
 String srcTxt = new String(data);
 String dstTxt = srcTxt;
 
 String delim = " ,.!\n\t"; //分隔符可以指定
 StringTokenizer st = new StringTokenizer(srcTxt,delim,false);
 String sub,lowerSub,newSub;
 //int i=0;
 while(st.hasMoreTokens()){
  sub = st.nextToken(); //分割出的一个个单词
 
  lowerSub = sub.toLowerCase();//统一转换为小写，这样可以简化词库
  //System.out.println(sub);
  newSub = pps.getProperty(lowerSub);
  if(newSub != null){ //如果找到了匹配的汉字，则进行替换
  dstTxt = dstTxt.replaceFirst(sub, newSub); //只替换第一个，即只替换了当前的字符串，否则容易造成ch我na的例子
  //System.out.println(dstTxt);
  }
 }
 
 return dstTxt.replaceAll(" ", ""); //去掉空格
 }
 
 
 
}

/*将字符串输出到文件*/
package zhidao3_2;
import java.io.File;
import java.io.FileOutputStream;
public class FileOutput {
 public static void output(String text,String fileName)throws Exception{
 File file = new File(fileName);
 FileOutputStream fos = new FileOutputStream(file);
 fos.write(text.getBytes());
 fos.close();
 }
}

package zhidao3_2;
import javax.swing.JOptionPane;
public class Main {
 
 public static void main(String[] args) {
 String srcFile = JOptionPane.showInputDialog("输入源文件");
 try{
  byte[] data = FileLoad.getContent(srcFile);
  TxtTrans tt = new TxtTrans();
  String dString = tt.trans(data);
  FileOutput.output(dString, "g:/result.txt");
 }catch(Exception ex){
  JOptionPane.showMessageDialog(null, "操作异常");
  System.exit(1);
 }
 
 
 JOptionPane.showMessageDialog(null, "翻译完毕");
 }
 
}