字符串匹配的算法

r囧r小猫 2022-08-27 12:41 175阅读 0赞

字符串匹配的算法.  
public String getMaxMatch(String a,String b) \{    
        StringBuffer tmp = new StringBuffer();    
        String maxString = "";    
        int max = 0;    
        int len = 0;    
        char\[\] aArray = a.toCharArray();    
        char\[\] bArray = b.toCharArray();    
        int posA = 0;    
        int posB = 0;    
        while(posA<aArray.length-max) \{    
            posB = 0;    
            while(posB<(bArray.length-max)) \{                                    
                 if(aArray\[posA\]==bArray\[posB\]) \{    
                      len = 1;    
                      tmp = new StringBuffer();    
                      tmp.append(aArray\[posA\]);                                            
                      while((posA+len<aArray.length)&&(posB+len<bArray.length)&&(aArray\[posA+len\]==bArray\[posB+len\])) \{    
                           tmp.append(aArray\[posA+len\]);    
                           len++;    
                      \}    
                      if(len>max) \{    
                            max = len;    
                            maxString = tmp.toString();    
                      \}    
                 \}    
                      posB++;    
            \}    
                      posA++;    
         \}            
            return maxString;                        
    \}