retrieves and removes ! the head of this queue , or null if this queue is empty . concode_field_sep int head concode_elem_sep int size concode_elem_sep int DEFAULT_CAPACITY concode_elem_sep boolean reverse concode_elem_sep int currentPos concode_elem_sep Object queue[] concode_field_sep int getIndex concode_elem_sep Object tail concode_elem_sep void clear concode_elem_sep boolean isEmpty concode_elem_sep Object serve concode_elem_sep Object peek concode_elem_sep Object offer concode_elem_sep Object head concode_elem_sep int getSize concode_elem_sep boolean contains concode_elem_sep Object getElement concode_elem_sep boolean hasMoreElements concode_elem_sep Enumeration getElements concode_elem_sep Enumeration getElementsReversed concode_elem_sep boolean isFull concode_elem_sep int getCapacity concode_elem_sep Object nextElement
Object function ( ) { try { return serve ( ) ; } catch ( NoSuchElementException loc0 ) { return null ; } }