string - Java invalid array size -


I'm taking a string input from the console if I input "ABCD" and so on Dropped 

  scanner input = new scanner (System.in); String [] stringInput = input.nextLine (). ToLowerCase (). Trim (). the division (""); Let me assume that I entered  "abcd"  as input, showing  stringInput.length   5 . But, should it be  4  correct? What's wrong, I'm doing here? Any remedy? How can I solve it?   
 
 
 You can find it in the partitioned method in regex as follows:  
 < Code> partition ("(?! ^ ^")

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