sing Python programing creat a class(RationalNum) and a sub class(RationalNumOpr) following the uml diagram on the image. (find and set- numerator and denominators and add operations
sing Python programing creat a class(RationalNum) and a sub class(RationalNumOpr) following the uml diagram on the image. (find and set- numerator and denominators and add operations
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Using Python
Transcribed Image Text:Ratioinal Num
+
_num: int //numerator
_denom: int //denominator of a
+ RatioinalNum (int nemerator, int denominator) //make sure the denominator is positive
+ getNumerator(): int
+ setNumerator(int
n) : void
+ getDenominator():
int
+ setDenominator(int d) : void
+ normalize(): void //normalize the rational number: 2 bonus points
//examples: 7/(-6) ➜-7/6, 0/10➜0/1, 12/18⇒2/3, 20/5→ 4/1
+ is Positive(): bool //returns true if current object represents a negative Rational Number.
+ isZero(): bool //returns true if current object represents a negative Rational Number.
+ _eq__(other): bool
+ _str__(): string
RatioinalNumOpr
RatioinalNumOpr (int nemerator, int denominator)
// Overloading +, -, *, / operators for Ratioinal NumOpr objects:
+ ____add__( Ratioinal NumOpr other) : Ratioinal NumOpr
_sub___( RatioinalNumOpr other) : Ratioinal NumOpr
+ _mul___( Ratioinal NumOpr other) : RatioinalNumOpr
+ _truediv___( Ratioinal NumOpr other): Ratioinal NumOpr
//3+3+2 bonus: Overloading <<, >> operators, rasie exception if denominator or divisior is 0
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