[Newbies] Array questions

[noobie]

I have a few questions about writing methods dealing with arrays....

Firstly, how would i make a method that returns true or false if the
receiver is in the array.
example
1 inArray: #(1 2 3 4)
should return to true

Second, how would i make a method that will return the number of integers in
the array different from the integer parameter

anArray howmany: 5   should return how many elements in the array are
different from the number 

thanks again.
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