calculate area of circle in Java

 import java.util.*;

public class JavaBasics {

    // code to calculate area of a circle: area = 3.14 x radius x radius.

    public static void main(String args[]) {

    Scanner sc = new Scanner(System.in);

    float radius = sc.nextFloat();

    float area = 3.14f*radius*radius;

    System.out.println(area);

}

}

MyLearnings:-

1. input f after 3.14, so 3.14 to avoid any floating errors