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So I should use String instead of chars, right??

--- Update ---

I have changed my code and it shows the right answer, but the output shows like a few Errors before the answer:

Error
Error...

Hey guys,

Here is the question: Design Java code to find and return the frequency of string b in string a.

For example , if string a = "abcdabcfabxyabd" and string b = "ab"
The frequency...