Java program to calculate area of a circle
import java.util.Scanner;
public class CalculateAreaOfCircle
{
public static void main(String[] args)
{
double radius;
double pi = 3.1415, area;
Scanner sc = new Scanner(System.in);
System.out.println("Please enter radius of circle: ");
radius = sc.nextDouble();
area = pi * radius * radius;
System.out.println("Area of circle: " + area);
sc.close();
}
}area of circle in java
import java.util.Scanner;
public class AreaOfCircle {
public static void main(String args[]){
int radius;
double area;
Scanner sc = new Scanner(System.in);
System.out.println("Enter the radius of the circle ::");
radius = sc.nextInt();
area = (radius*radius)*Math.PI;
System.out.println("Area of the circle is ::"+area);
}
}area of circle in java
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
final float PI = 3.14f;
Scanner scanner = new Scanner(System.in);
System.out.print("Enter radius of circle: ");
int radius = scanner.nextInt();
double areaOfCircle = PI * Math.pow(radius,2);
System.out.printf(" Area of circle of circle is %.2f ",areaOfCircle);
}
}Copyright © 2021 Codeinu
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