'How do you compare two char arrays with each other to see if the inputted one has more than one specific variable than the other?

Okay, so I'm coding a program that will tell the user if the word they put into the command line is an isogram or not, and I'm having difficulties.

How exactly do I go about making it to where the user inputted char array is compared against the other to see if it has more than one letter than the other?

I have this and I'm confused where to go from here.

char[] alphabet = new char[]{'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
char[] wordLetters = word.toCharArray(); 
boolean blnResult = Arrays.equals(alphabet,wordLetters);

I'm sure I went in the completely wrong way with this, but how should I go about comparing the two to get that result?

javaarrayscharalphabet


Solution 1:[1]

Basically isograms are word or phrase without a repeating letter.

Your function signature or program output expectation in the form of code would help answer better.

However, considering you're working on a function which returns true or false: Set is the way to go about it. Keep putting the characters in a Set or HashMap and if while inserting in set, the character already exists in set then return the response as false otherwise return true.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Milind Gokhale

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