java中等级评比,不知道还有没有bug

package tian;
public class TestMap {
  /**
   * @Title: main
   * @Description: 有关容器
   * @param
   * @param args
   * @return void
   * @throws
   */
  public static void main(String[] args) {
   String str = "AAA+";
   String str1 = "BBB+";
   System.out.println(doAppraise("A", "AA"));//false
  } public static boolean doAppraise(String str, String str2) {
   char appraiseMoody[] = splitString(str);
   char appraiseLimit[] = splitString(str2);
          boolean result=false;
       result=bijiao(appraiseMoody,appraiseLimit);
   return result; }
     public static boolean bijiao(char appraiseMoody[],char appraiseLimit[]){
      String str3 = "B";
   String str4 = "-";
   char[] jia = str3.toCharArray();
   char[] jian = str4.toCharArray();
   int length = appraiseMoody.length;
   int lengthLimit = appraiseLimit.length;
   boolean result=false;
     // 先比较第一个字母是否为+或者-
    if((((int) appraiseMoody[0]==jia[0])||((int) appraiseMoody[0]==jia[0]))&&
      (((int) appraiseLimit[0]==jia[0])||((int) appraiseLimit[0]==jia[0]))){
     shifouxiangt((int) appraiseMoody[0],(int) appraiseLimit[0]);
    }else{
     if((int) appraiseMoody[0]==(int) appraiseLimit[0]){
      //再比较第二个字母
      if(length==1&&lengthLimit==1){//先判断长度
       return true;
      }else if(length==1&&lengthLimit>1){
       if((int) appraiseLimit[1]==jia[0]){
        return false;
       }else{
        return false;
       }
      }else if(length>1&&lengthLimit==1){
       if((int) appraiseMoody[0]==jia[0]){
        return true;
       }else{
        return false;
       }
      }else{
       //循环调用
       if((((int) appraiseMoody[1]==jia[0])||((int) appraiseMoody[1]==jia[0]))&&
         (((int) appraiseLimit[1]==jia[0])||((int) appraiseLimit[1]==jia[0]))){
        shifouxiangt((int) appraiseMoody[1],(int) appraiseLimit[1]);
       }else{
        if((int) appraiseMoody[1]==(int) appraiseLimit[1]){
         //再比较第三个字母
         if(length==2&&lengthLimit==2){//先判断长度
          return true;
         }else if(length==2&&lengthLimit>2){
          if((int) appraiseLimit[1]==jia[0]){
           return false;
          }else{
           return false;
          }
         }else if(length>2&&lengthLimit==2){
          if((int) appraiseMoody[2]==jia[0]){
           return true;
          }else if(((int) appraiseMoody[2]>64)&&(int) appraiseMoody[2]<=(int) appraiseMoody[1]){
           return true;
          }else if((int) appraiseMoody[2]==jian[0]){
           return false;
          }
         }else{
          //循环调用
          if((((int) appraiseMoody[2]==jia[0])||((int) appraiseMoody[2]==jia[0]))&&
            (((int) appraiseLimit[2]==jia[0])||((int) appraiseLimit[2]==jia[0]))){
           shifouxiangt((int) appraiseMoody[2],(int) appraiseLimit[2]);
          }else{
           if((int) appraiseMoody[2]==(int) appraiseLimit[2]){
            //再比较第四个字母
            if(length==3&&lengthLimit==3){//先判断长度
             return true;
            }else if(length==3&&lengthLimit>3){
             if((int) appraiseLimit[3]==jia[0]){
              return false;
             }else{
              return false;
             }
            }else if(length>3&&lengthLimit==3){
             if((int) appraiseMoody[3]==jia[0]){
              return true;
             }else{
              return false;
             }
            }else{
             return shifouxiangt(appraiseMoody[3],appraiseLimit[3]);
            }
           }else if(((int) appraiseMoody[2]<64)&&((int) appraiseMoody[2]<(int) appraiseLimit[2])){//。。。。。
            return true;
           }else if(((int) appraiseMoody[2]<64)&&((int) appraiseLimit[1]<(int) appraiseLimit[2])){
            return true;
           }else if((int) appraiseMoody[2]<(int) appraiseLimit[2]){
            return true;
           }else{
            return false;
           }
          }
         }
        }else if((int) appraiseMoody[1]<(int) appraiseLimit[1]){
         return true;
        }else{
         return false;
        }
       }
      }
     }else if((int) appraiseMoody[0]<(int) appraiseLimit[0]){
      return true;
     }else{
      return false;
     }
    }
   return result;
     }
  
  public static char[] splitString(String str) {
   char[] t = null;
   t = str.toCharArray();
   return t;
  }
  //当最后都为+或者-的时候
  public static boolean shifouxiangt(int a,int b){
   String str3 = "+";
   String str4 = "-";
   boolean result=false;
   char[] jia = str3.toCharArray();
   char[] jian = str4.toCharArray();
   if((a==jia[0]&&b==jia[0])||(a==jian[0]&&b==jian[0])){
    result= true;
   }else if((a==jia[0]&&b==jian[0])||(a==jia[0]&&b!=jian[0])){
    result= true;
   }else {
    result= false;
   } 
   return result;
  }}