Area of Circle
Area of Circle
Problem Description
Java Program to find area of circle
Note:
Use Double Data Type
and Use the following statements in the output
String.format("%.02f",area)
Logic Test Case 1
Input (stdin)
2
Expected Output
12.57
Logic Test Case 2
Input (stdin)
9
Expected Output
254.47
Code Area
import java.io.*;
import java.util.Scanner;
public class TestClass {
public static void main(String[] args)
{
int r;
double pi=3.14159,area;
Scanner in=new Scanner(System.in);
r=in.nextInt();
area=pi*r*r;
String str1=String.format("%.02f",area);
System.out.println(str1);
}
}
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