Unicode码和字符间的相互转换

//**************************************************************************
//UnicodetoChar

public class UnicodetoChar { //以空格为分隔
     private String theString;

     public UnicodetoChar(String theString){
         this.theString = theString;
     }

     public String convert(){
         int i=0;                    //临时变量
         String s  = new String ();  //用于保存转换后的字符
         String thechar = new String();//当前将要转换的Unicode
        while(i<theString.length()){   //每次循环转换一个Unicode码
            while(i<theString.length()&&(theString.charAt(i)!=' ')){
             thechar += theString.charAt(i++);   //其实每次的thechar是单个字符
         }
         s+=(char)Integer.parseInt(thechar);
         thechar ="";
         i++;
     }
     return s;
     }
}


//**************************************************************************
//ChartoUnicode

public class ChartoUnicode {
   private String theString;

   public ChartoUnicode(String aString){
       theString = aString;
   }

   public String convert(){
       int i,j;
       String chartodigit = new String();// 保存转换后的Unicode码
       for(i=0;i<theString.length();i++){  //每次循环转换一个字符
           j = (int)theString.charAt(i); //将一个字符转换为Unicode码
           chartodigit+=j+" ";  //将转换后的Unicode码保存起来
       }
       return chartodigit;
   }
}