Question

Create a Circle class and initialize it with a radius. (any number you like)

Make one method that prints out a squared value of the radius.

Answer 1

Java Program:

import java.util.*;

class Circle
{
double radius;

Circle(double radius)
{
this.radius=radius;
}

void squaredValue()
{
System.out.printf("\nSquared value of the radius is %.2f\n\n",(radius*radius));
}

public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
System.out.print("\nEnter a radius: ");
double radius=sc.nextDouble();

Circle circle=new Circle(radius);
circle.squaredValue();
}
}

Output:

Windows PowerShell - OX PS C:\Users\user\Desktop> javac circle.java PS C:\Users\user\Desktop> java circle squared value of the radius is 6.25 PS C:\Users\user\Desktop> Activate Windows Go to Settings to activate Windows. Type here to search Om e . OA B e M 2 A4 P 4 1:35 PM /7/2020

C++ PROGRAM :

#include <iostream>

using namespace std;

class Circle
{
public:

double radius;

Circle(double rad)
{
radius=rad;
}

void squaredValue()
{
cout<<"\nSquared value of the radius is "<<(radius*radius)<<endl;
}
};

int main()
{
double radius;
cout<<"Enter a radius: ";
cin>>radius;
  
Circle circle(radius);
circle.squaredValue();
  
return 0;
}

Output:

Enter a radius: 2.50 ... Program finished with exit code 0 Press ENTER to exit console. I