question: protected boolean remLink ( String field , int len , int n , int e ) { int [ ] array = ( int [ ] ) m_links . get ( n , field ) ; for ( int i = 0 ; i < len ; ++ i ) { if ( array [ i ] == e ) { System . arraycopy ( array , i + 1 , array , i , len - i - 1 ) ; return true ; } } return false ; }
target:  Internal method for removing a link from an adjacency list