extracts and returns the element on the top of the operand stack . concode_field_sep ArrayDeque<Value> valueStack concode_field_sep Value[] operands concode_elem_sep Value top concode_elem_sep Collection<Value> values concode_elem_sep void clear concode_elem_sep OperandStack clone concode_elem_sep String toString concode_elem_sep void push
Value function ( ) { if ( this . valueStack . isEmpty ( ) ) { throw new InvalidNumberOfOperandsException ( ) ; } return this . valueStack . pop ( ) ; }