question: public boolean overlaps ( String sequence , int start , int end ) { if ( start == MISSING || end == MISSING || end < start ) { throw new IllegalArgumentException ( ) ; } if ( ! mSequence . equals ( sequence ) ) { return false ; } if ( ( mEnd != MISSING && start >= mEnd ) || ( end <= mStart ) ) { return false ; } return true ; }
target:  Test whether the specified range overlaps the current region