retrieve the largest number . use reduce to select the maximum value in a list of numbers . concode_field_sep PlaceHolder placeHolder concode_field_sep Observable<String> exerciseMap concode_elem_sep Observable<String> handleError concode_elem_sep Observable<JSON> exerciseMovie concode_elem_sep JSON json concode_elem_sep Observable<String> exerciseFilterMap concode_elem_sep Observable<Integer> exerciseConcatMap concode_elem_sep Observable<Integer> exerciseFlatMap concode_elem_sep Observable<String> exerciseHello concode_elem_sep Observable<String> retry concode_elem_sep Observable<String> exerciseZip
Observable < Integer > function ( Observable < Integer > arg0 ) { return Observable . error ( new RuntimeException ( "srini_string" ) ) ; }