Consider the following class declaration.public class WeatherInfo{private String city;private int day;private String weather;public WeatherInfo(String c, int d, String w){city = c;day = d;weather = w;}public String changeWeather (String w){/* missing code */}The changeWeather method is intended to update the value of the instancevariable weather and return the previous value of weather before it was updated.Which of the following options should replace /* missing code */ so that thechangeWeather method will work as intended?a. String prev = w;return weather;b. String prev = weather;return w;c. String prev = w;return prev;d. String prev = weather;weather = w;return prev;e. None of the above

Given :- A Class declaration is mention in the above given question Need to choose the option that…

Answered: class declaration.

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Computer Science

class declaration.

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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Concept explainers

OOPs

In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.

Constructor

The easiest way to think of a constructor in object-oriented programming (OOP) languages is:

Question

Consider the following class declaration.
public class WeatherInfo
{
private String city;
private int day;
private String weather;
public WeatherInfo(String c, int d, String w)
{
city = c;
day = d;
weather = w;
}
public String changeWeather (String w)
{
/* missing code */
}
The changeWeather method is intended to update the value of the instance
variable weather and return the previous value of weather before it was updated.
Which of the following options should replace /* missing code */ so that the
changeWeather method will work as intended?
a. String prev = w;
return weather;
b. String prev = weather;
return w;
c. String prev = w;
return prev;
d. String prev = weather;
weather = w;
return prev;
e. None of the above

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