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java GBת UTF 8×Ö·û

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class GB2UTF
{
 public static String GBK2Unicode(String str)
 {
  StringBuffer result = new StringBuffer();
  for (int i = 0; i < str.length(); i++)
  {
   char chr1 = (char)str.charAt(i);
   if(!isNeedConvert(chr1))
   {
    result.append(chr1);
    continue;
   }
   result.append("&#x" + Integer.toHexString((int)chr1) + ";");          
  }
  return result.toString();
 }
 
 public static boolean isNeedConvert(char para)
 {
  return ((para&(0x00FF))!=para);
 }
 
 public static String GBK2Unicode2(String str)
 {
  StringBuffer result = new StringBuffer();
  for (int i = 0; i < str.length(); i++)
  {
   char chr1 = (char)str.charAt(i);
   result.append("&#" + Integer.toString((int)chr1)+ ";"); 
  }        
  return result.toString();
 }
 
 
 public static void main(String[] args)
 {
  try
  {
   BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
   String str = br.readLine();
   System.out.println(GBK2Unicode(str));
   System.out.println(GBK2Unicode2(str));
  }
  catch (IOException e)
  {
   e.printStackTrace();
  }
  
 }
}


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public class EchoServer {
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class TestA{
 public int devide(int x,int y) throws ArithmeticException , DevideByMinusException{
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