My compiler is executing unreachable code !

Question

Greetings
I have an if - else statement such as :
if (....)
{ for (...)
....return
} // end if
else {
... return
} end else
return something; // unreachableI'm executing a loop 10 times, and at 5, 6 and 7. the unreahable section is executed!
My question is : when does this happens? and how to prevent it?
knowing that removing the unreachable return statement will result in a missing return statement while compiling

Answer 1

First of all I want to thank you ...
ok here is my method
public int getPoints(int i, int m, boolean [] wrong, int [] array, int  [] key, int correctPoints, int falsePoints)
   if (wrong [m-1] == false)
      for(int j = i; j < i + 4; j++)
         if (array[j] < 220 )
            if ( key[j] < 220)
               return correctPoints;
           else
               return falsePoints
else
      return falsePoints;
return -1; // shouldn't be reached I will try as BIJ001 did. that is eliminate the else. but I am still confused about the reason why -1 is returned.