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Java Program || Write a Java program to enter radius of a circle and find its diameter, circumference and area.||

                           JAVA PROGRAM


 Write a Java program to enter radius of a circle and find its diameter, circumference and area.

Solution :- 

(Hint)
 diameter = 2 * radius,
circumference = 2 * 3.14 * radius
area = 3.14 * radius * radius
 
Static :-
 
class circle
{
    public static void main(String args[])
    {
        int radius = 10;
        double pi = 3.14;   
        double diameter,circumference,area;
        diameter = 2 *radius;
        circumference = 2 * pi * radius;
        area = pi * radius * radius;
        System.out.println("The diameter of the circle :-"+diameter);
        System.out.println("The circumference of the circle :-"+circumference);
        System.out.println("The area of the circle"+area);    
    }
}
 

Output :- 


 

 

Dynamic :- 

import java.util.*;
class circle
{
    public static void main(String args[])
    {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter the radius :- ");
        int radius = in.nextInt();
        double pi = 3.14;    
        double diameter,circumference,area;
        diameter = 2 *radius;
        circumference = 2 * pi * radius;
        area = pi * radius * radius;
        System.out.println("The diameter of the circle :-"+diameter);
        System.out.println("The circumference of the circle :-"+circumference);
        System.out.println("The area of the circle"+area);     
        
        
    }    
} 

Output :-

 
 


 

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