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 formula java

public static double area(double radius) {
     return (Math.PI * Math.pow(radius, 2));   
}

Area of a Circle in Java Programming

import java.util.Scanner;

public class Main {
    public static void main(String[] args){
        double R,A;
        Scanner sc = new Scanner(System.in);
        R = sc.nextDouble();
        A = 3.14159 * R * R;
        System.out.printf("A=%.4f\n",  A);
   }
}

Source: devsenv.com

Similar codes

14 votes297 views6 answers
Fibonacci
Java
0 vote298 views1 answer
Nullpointer extension
Java
0 vote306 views2 answers
Convert void * to int
Java
0 vote292 views2 answers
How do I change the opacity of a JButton
Java
0 vote277 views1 answer
Currency Formatter java
Java
103 votes340 views5 answers
Switch expression java
Java
3 votes285 views1 answer
Minecraft chunk size
Java
1 vote291 views1 answer
JAVA_HOME should point to a JDK not a JRE
Java
2 votes274 views2 answers
Left fold java
Java
10 votes280 views3 answers
String to long java
Java