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编写一个截取字符串的函数的截取

编程：编写一个截取字符串的函数，输入为一个字符串和字节数，输出为按字节截取的字符串。 但是要保证汉字不被截半个，如"我ABC"4，应该截为"我AB"，输入"我ABC汉DEF"，6，应该输出为"我ABC"而不是"我ABC+汉的半个". class SplitString  {      String SplitStr;      int SplitByte;      public SplitString(String str,int bytes)      {          SplitStr=str;          SplitByte=bytes;          System.out.println("The String is:′"+SplitStr+"′;SplitBytes="+SplitByte);      }      public void SplitIt()      {          if(SplitByte>;=2){             byte [] splbyte=SplitStr.getBytes();             int i=0;             while(i<splbyte.length){                 String str=null;                 byte []tempbyte=new byte[SplitByte];                 for(int j=0;j<tempbyte.length;){                     if(i<splbyte.length){                         if(splbyte[i]>;0){                             tempbyte[j]=splbyte[i];                             i++;                             j++;                         }else{                             if(tempbyte.length-j==1){                                 j++;                             }else{                                 tempbyte[j]=splbyte[i];                                 i++;                                 j++;                                 tempbyte[j]=splbyte[i];                                 i++;                                 j++;                             }                         }                     }else{                         break;                     }                 }                 str=new String(tempbyte);                 System.out.println(str);             }         }else{             System.out.println("输入参数不能小于2");         }     }      public static void main(String[] args)      {          SplitString ss = new SplitString("文dsf中kdjaa地0方0地0方l",6);          ss.SplitIt();      }  }  Tags: 编写  截取  取字  字符  字符串  函数  数的   Shares: linux J2SE的30个基本概念< 上页   下页 >"面向切面(AOP)"与"面向对象(OOP)"(图)