question: add an item to history concode_field_sep String name concode_elem_sep Object[] history concode_field_sep void printHistory concode_elem_sep T get concode_elem_sep String getString
target: void function ( T arg0 ) { for ( int loc0 = MagicNumbers . max_history - 1 ; loc0 > 0 ; loc0 -- ) { history [ loc0 ] = history [ loc0 - 1 ] ; } history [ 0 ] = arg0 ; }