Areaofcircle.java

//import java.util.*;

public class Areaofcircle {
    public static void main(String[] args) {

        // Scanner sc = new Scanner(System.in); // area of circle
        // float redius = sc.nextFloat();
        // float area   = 3.14f*redius*redius;
        // System.out.println(area);

        // float num1 = 10.5f;  // type casting
        // int num2 = (int)num1;
        // System.out.println(num2);

        // char a = 'a'; // type casting
        // char b = 'b';
        // System.out.println((int)(a));
        // System.out.println((int)(b));
        // System.out.println(b-a);

        int a = 10;  // type promotion
        float b = 20.25f;
        long c = 30;
        double d = 40;
        double ans = a + b + c + d;
        System.out.println(ans);

    }
    
}